Chemstry 2nd Paper

GBPGmwm cix¶vi cÖkcœ Î I
DËigvjv : eûwbe©vPwb

M †mU 1 XvKv †evW© 2019 welq †KvW : 1 7 7

mgq25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv cY~ ©gvb25

[we‡kl `ªóe¨ : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î c‡Ö kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/ m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg

Øviv m¤úY~ © fivU Ki| cÖwZwU cÖ‡kœi gvb 1| mKj cÖ‡kœi DËi w`‡Z n‡e| cÖkcœ ‡Î †Kv‡bv cÖKvi `vM/wPý †`Iqv hv‡e bv|]

1. WHO Gi g‡Z cvwb‡Z Av‡m©wb‡Ki 9. X + O3 CCl4 I‡RvbvBW Zn/H2O `ªe‡Y wZbwUi †ÿ‡Î
2. wg_vb¨vj + †cÖvcvb¨vj| X †hŠMwU Kx? i. II bs cv‡Îi `ªeY GKwU cÖgvY `ªeY
mnbxq gvÎv KZ ppm? K weDwUb-1 L weDwUb-2 ii. I bs I III bs cv‡Îi `ªe‡Yi NbgvÎv
M weDUvBb-1 N weDUvBb-2
K 0.05 L 0.01 kZKiv GK‡K wfbœ
M 0.005 N 0.001 10. ˆewk¦K DòZv n«v‡m iii. II bs Øviv III bs †K m¤ú~Y© cÖkwgZ
C3H6O Gi mgvYy KZwU?
K1 L2 Kiv hv‡e
wb‡Pi †KvbwU mwVK?
M3 N4 i. †c‡Uªvwjqvg R¡vjvbxi e¨envi evov‡Z n‡e K i I ii L ii I iii

3. An+(aq) + B(s)  A(s) + ii. Kve©b wbtmiY Kgv‡Z n‡e M i I iii N i, ii I iii
Bn+(aq); GB †Kvl wewµqvi Av‡jv‡K
4. iii. AwaK nv‡i ebvqb Ki‡Z n‡e 18. AÅvjywgwbqvGgi Zwor ivmvqwbK ZzjÅvsK KZ?

 bvY©ó mgxKiY †KvbwU? wb‡Pi †KvbwU mwVK? K 2.8  105 g/c L 9.33  105 g/c

5. K Ecell = Ecell  RT In [An+] K i I ii L ii I iii M 1.4  104 g/c N 2.8  104 g/c
nF [Bn+] M i I iii N i, ii I iii
11. 24.5 g H2SO4 wewkó 250 mL `ªe‡Y 19. Pvgovi wKDwis-Gi cÖ‡qvRbxqZv Kx?
RT [Bn+] AviI 250 mL cvwb †hvM Ki‡j †gvjvi K †jvgg³y KivL Pwe© `~i Kiv
L Ecell = Ecell  nF In [An+] M e¨vK‡Uwiqv gy³ ivLv
N big I gm„Y Kiv
M 2303 RT [An+] NbgvÎv KZ n‡e?
F [Bn+]
Ecell = Ecell  log K 0.1 L 0.25 20. V0t G mgxKi‡Y V0t †K e‡j
273 273
2303 RT [Bn+] M 0.5 N1 V1 = V0 +
F [An+]
N Ecell = Ecell  log 12. ˆKvbwU ˆebwRb ejq mwKÌqKvix gƒjK? K Zvc cÖmvivsK L AvqZb cÖmvivsK
M cig AvqZb N cig ZvcgvÎv
01 M HCl `ªe‡Y 10 mL †K cÖkwgZ Ki‡Z K  SO3H L  CHO 21. Pvqbv †K¬ †KvbwU?
M  COOH N  OCH3
02 M Na2CO3 `ªe‡Yi KZ mL jvM‡e? 13. MwjZ NaCl Gi Zwor cwievwnZvi KviY K K2O . Al2O3 . SiO2
K 0.5 L 2.5 M 5 N 10 L Na2O . Al2O3 . CaO
wb‡Pi DÏxc‡Ki Av‡jv‡K 5 I 6 bs Kx?
M CaO . Al2O3 . 6SiO2
cÖ‡kœi DËi `vI : K g³y B‡jKUªb N Al2O3 . 2SiO2 . 2H2O
L gy³ cigvYy
H+/Hg2+ M gy³ Avqb N g³y AYy 22. H2CO3 + HH2OCO2 3HoGoiooAIbHey Ü2Ox ÿ+vi+KH†KCvbOwU?3
R  C  CH Av`ËÆ weGklÏ Y A GB wewµqvq L H2O
cybweÆbÅvm 14. 100 mL 0.15 M Na2S2O3 `ªe‡Yi K H3O+
 wewµqK| ppm NbgvÎv KZ? M HCO3 N H2CO3
B
K 2.37 L 23.7
DÏxc‡Ki O
||
i. A †hŠMwU‡Z sp2 Ges sp3 msKwiZ M 23700 N 237000 23. CH3CH2  C  OCH2CH3 †hŠMwUi
15. LiCoO2 HoooooI A + nLi+ + ne; A
Kve©b Av‡Q †hŠ‡M Co Gi RviY gvb KZ? IUPAC bvg wK?

ii. B †hŠMwU Av‡qv‡Wvdg© MVb K‡i K+4L+3M+2N+1 K B_w· B_vBj wK‡Uvb

iii. B †hŠMwU RvwiZ n‡q GwmW Drcbœ K‡i 16. A+, B2+ I C3+, Avq‡bi `ªe‡Y c_„ Kfv‡e L B_vBj †cÖvcv‡bv‡qU

wb‡Pi †KvbwU mwVK? M B_vBj A¨vwmUvBj B_vi
1F we`¨y r Pvjbv Ki‡j N B_vBj B_v‡bv‡qU
K i I ii L ii I iii 24. †KvbwU RviY-weRviY B‡jK‡UªvW?
M i I iii N i, ii I iii i. 1 mol A+ PvR©gy³ n‡e
K PCtu(/SC),uF2+e2+/FLe3+H2/H+(Pt)
O ii. 2 mol B K¨v‡_v‡W Rgv n‡e M
||
6. B †hŠM CH3CH2C  CH3 n‡j gj~ iii. 1 mol C3+ `ªeY n‡Z ZworØv‡i N Ag/AgCl,KCl
wewµq‡Ki bvg wK n‡e? 3
7. K weDUvBb-1 L weDUvBb-2 nvB‡WªvKve©b
8. M weDwUb-1 N weDwUb-2 mwÂZ n‡e `~lYg³y `ylKhy³ evqy
evqy
STP †Z 1L M¨v‡mi fi 1.43 g n‡j M¨vmwU wb‡Pi †KvbwU mwVK?
K H2 L O2 M N2 N Cl2 25.
He Gi Drµg ZvcgvÎv KZ? K i I ii L i I iii
M ii I iii N i, ii I iii
K 240 C L 80 C Zij
M  80 C N  240 C
17. 20 mL 20 mL 20 mL DÏxcK h‡š¿ e¨en„Z ZijwU

0.1 M 0.02 M 0.02 M K GwmW L ÿvi

CH3COOH NaOH H2SO4 M †Zj N cvwb

I bs cvÎ II bs cvÎ III bs cvÎ

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 K 2 N 3 L 4 L 5 N 6 K 7 L 8 N 9 K 10 L 11 M 12 N 13 M
14 M 15 K 16 L 17 K 18 L 19 M 20 K 21 N 22 M 23 L 24 M 25 N

N †mU 2 ivRkvnx †evW© 2019 welq †KvW : 1 7 7

mgq25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb25

[we‡kl `ªóe¨ : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î c‡Ö kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ eË„ mgn~ n‡Z mwVK/ m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg

Øviv m¤úY~ © fivU Ki| cÖwZwU cÖ‡kœi gvb 1| mKj cÖ‡kœi DËi w`‡Z n‡e| cÖkcœ ‡Î †Kv‡bv cÖKvi `vM/wPý †`Iqv hv‡e bv|]

1. weqvi-j¨v¤^vU© m~‡Îi mvnv‡h¨ wbYq© Kiv wb‡Pi †KvbwU mwVK? 16. wRcmv‡gi ms‡KZ †KvbwU?

hvq K i I ii L ii I iii K FeSO4 . 7H2O L CaSO4 . 2H2O

i. ˆRe †hŠ‡Mi MVb M i I iii N i, ii I iii M ZnSO4 . 7H2O N CuSO4 . 5H2O

ii. ¯^”Q gva¨‡gi ciy æZ¡ 7. OH Gi AbyeÜx A¤ø †KvbwU? 17. 10 mL 0.5 M Na2CO3 `ªeY cÖkwgZ
8.
iii. eY©h³y `ªe‡Yi NbgvÎv K O2 L H2O M H3O+N OH Ki‡Z 12.6 mL H2SO4 `ªeY cÖ‡qvRb
wb‡Pi †KvbwU mwVK? 9.
CuSO4 `ªe‡Yi ga¨w`‡q 0.16 A we`y¨r 40 n‡j GwmW `ªe‡Yi NbgvÎv KZ n‡e?
wgwbU Pvjbv Kiv n‡jv| K¨v‡_v‡W mwÂZ
K i I ii L ii I iii K 0.396 M L 0.387 M
M 0.358 M N 0.333 M
M i I iii N i, ii I iii Kcvi cigvYy msL¨v KZ? [Cu = 63.5]
18. †ebwRb ej‡qi mwµqZv ew„ ×Kvix g~jK
2. †m‡KÛvwi A¨vwg‡bi Kvh©Kix g~jK K 1.198  1021 wU
3. L 1.342  1021 wU †Kvb¸‡jv?
†KvbwU?
M 1.546  1021 wU K  NO2,  CHO L  NH2,  COOH
K  NH2 L N H N 1.921  1021 wU
†Kvb ˆRe †hŠ‡Mi g‡a¨ nvB‡Wªv‡Rb bvB? M  Cl,  CHO N  OH,  CH3
R
19. Pvgovi g~j ivmvqwbK Dcv`vb †KvbwU?
M N R +R
N  N
R | R K d¨vU L U¨vwbb

†KvbwU jyBm GwmW? R K WvB‡K¬v‡ivwg‡_b M †Kvjv‡Rb N A¨vwgb
L Av‡qv‡Wvdg©
K NH3 L H2O M Cl N BCl3 20. †Kvb RvZxq e‡R©¨i Rb¨ ETP e¨en„Z
M †n·v‡K¬v‡iv‡ebwRb
OH nq?
4. HO N mvB‡K¬v‡n‡·b
CH(OH)CH2NHCH3 K KwVb L Zij
10. cvwbi A¯’vqx LiZvi Rb¨ `vqx †KvbwU?
†hŠMwU‡Z we`¨gvb M M¨vmxq N ajy vRvZxq
K SO42 L CO32
i. `wy U Uviwmqvix A¨vj‡Kvnj gj~ K 21. †mvwWqvg †K¬vivB‡Wi MwjZ Ae¯’vq Zwor
M Cl N HCO3
ii. GKwU KvBivj Kve©b 11. †Kvb †hŠ‡Mi ÿviagx©Zv me‡P‡q †ewk? Pvjbv Ki‡j K¨v‡_v‡W †KvbwU Rgv nq?

iii. `wy U †dbjxq  OH g~jK K NH3 L CH3NH2 K †mvwWqvg avZz

wb‡Pi †KvbwU mwVK? M (CH3)2NH N C6H5  NH2 L nvB‡Wªv‡Rb M¨vm

K i I ii L ii I iii 12. A¨vgvMv eµ‡iLvi gj~ wfwË †KvbwU? M †mvwWqvg nvB‡Wªv·vBW

M i I iii N i, ii I iii K V  1 L VT N †K¬vwib M¨vm
P N pT 22. wb‡`©kK †Kv‡bv ivmvqwbK wewµqvq
5. 25 C 25 C 25 C
1.0 g Mr 1 Dcw¯’Z †_‡K
0.5 g 1.0 g

1.0 atm 1.5 atm 2.0 atm d i. wewµqvi †kl we›`y wb‡`©k K‡i
2.0 L 2.0 L 3.0 L ii. wewµqv‡K cÖfvweZ K‡i
 wb‡Pi DÏxc‡Ki Av‡jv‡K 13 I 14 bs iii. wb‡Ri eY© cwieZ©b K‡i
A-cvÎ B-cvÎ C-cvÎ cÖ‡kœi DËi `vI :

DÏxcK Abymv‡i G

i. C- cv‡Îi M¨v‡mi e¨vc‡bi nvi jeY †mZz wb‡Pi †KvbwU mwVK?

me‡P‡q †ewk K i I ii L ii I iii

ii. B-cv‡Îi AYiy msL¨v me‡P‡q Kg Zn `Ð Cu `Ð M i I iii N i, ii I iii

iii. A-cv‡Îi M¨vm Z  1 23. RMgX + HCHO  A HH2O+ B,
B †hŠMwU wK?
wb‡Pi †KvbwU mwVK? ZnSO4 `ªeY CuSO4 `ªeY
K cÖvBgvwi A¨vj‡Kvnj
K i I ii L ii I iii EZn/Zn2+ = +0.76 V L †m‡KÛvwi A¨vj‡Kvnj
N i, ii I iii BCu/Cu2+ =  0.34 V M Uviwmqvwi A¨vj‡Kvnj
M i I iii N ˆRe GwmW
6. 13. DÏxc‡Ki Zwo”PvjK e‡ji gvb KZ?

Y K +1.10 V L 10.42 V

14
13 MOH
12
PH 11 M  1.10 V N  0.42 V

10

9 14. cÖ`Ë †Kv‡li †ÿ‡Î cÖ‡hvR¨ n‡e 25° C 25° C 25° C
8
24.
7X

6 i. Zn `Ð A¨v‡bvW wn‡m‡e wµqv K‡i 0.8 atm 0.7 atm 1.5 L
5 1L + 1L 
HA 4 ii. Cu avZz Zn Gi †P‡q AwaK mwµq

3 MÅvm-A MÅvm -B wgkÉY
2

1 iii. †KvlwU Zn/Zn2+ || Cu2+/Cu wgk‡Ö Yi †gvU Pvc KZ?
0 wb‡Pi †KvbwU mwVK?

DÏxc‡Ki †jLwPÎ Abhy vqx

i. MOH GKwU mej ÿvi K i I ii L ii I iii K 0.93 atm L 1.0 atm
ii. UvB‡Uªk‡bi Rb¨ †dbd_¨vwjb Dchy³ M 1.10 atm N 1.25 atm
wb‡`©kK M i I iii N i, ii I iii
25. A¨vwbwjs †Kvb wk‡íi ¸iæZc¡ ~Y© avc?
15. †KvbwU cÖvBgvwi ÷¨vÛvW© c`v_©?
iii. cÖkgb we›`y‡Z Abey Üx ÿviwU n‡e K KvMR wkí L wmivwgK wkí
mej ÿvi K FeSO4 L NaOH
M KMnO4 N K2Cr2O7 M KvP wkí N Pvgov wkí

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 L 2 L 3 N 4 L 5 M 6 N 7 L 8 K 9 M 10 N 11 M 12 K 13 K
14 M 15 N 16 L 17 K 18 N 19 M 20 L 21 K 22 M 23 K 24 L 25 M

m„Rbkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  3

K †mU 3 h‡kvi †evW© 2019 welq †KvW : 1 7 7

mgq25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb25

[we‡kl `ªóe¨ : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î c‡Ö kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ eË„ mgn~ n‡Z mwVK/ m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg

Øviv m¤úY~ © fivU Ki| cÖwZwU cÖ‡kœi gvb 1| mKj cÖ‡kœi DËi w`‡Z n‡e| cÖkcœ ‡Î †Kv‡bv cÖKvi `vM/wPý †`Iqv hv‡e bv|]

1. †Kvb gj~ KwU †ebwRb Pµ‡K wbw¯µq 10. 25 mL 0.03 M Na2CO3 `ªe‡Yi NbgvÎv 17. wb‡Pi †KvbwU †dwjs `ªe‡Yi mv‡_ Cu2O

K‡i? ppm GK‡K KZ? Gi jvj e‡Y©i Aat‡ÿc †`q?

K  OH L  CH3 K 7.5  102 L 31.80  102 K wf‡bMvi L digvwjb
M 7.5  102 N 31.80  102
M  Cl N  NH2 11. M wMømvwib N †cÖvcv‡bvb
wm‡g›U Drcv`‡b Avi‡R‡jwmqvm
2. wb‡Pi †KvbwU A¤øagx©?  18. FeSO4 Gi g‡a¨ 5A Zwor 10 min Pvjbv
c`v_©iƒ‡c e¨en„Z nq Ki‡j K¨v‡_v‡W Kx cwigvY Avqib Rgv
3. K C6H5  OH
4. K A¨vjywgbv n‡e?
OH L Pzbvcv_i
L C6H4 CH3 M K¨vjwmqvg A·vBW K 0.0144 g L 0.404 g
N wm‡g›U iK
M CH3  C  CH wb‡Pi DÏxc‡Ki Av‡jv‡K 12 I 13 bs M 0.578 g N 0.868 g

N CH3  CH = CH2 19. wg_vBj A‡iÄ A¤øxq `ªe‡Y †Kvb ai‡bi

33 C ZvcgvÎvq N2 Gi rms KZ ms1? cÖ‡kœi DËi `vI : eY© †`Lvq?

K 16.33 L 51.58  K jvj L Kgjv
M 522 N 772 
wZb †kÖwYi A¨vwg‡bi g‡a¨ cv_©K¨ wba©viY A¨vjKvbvgvBW + Br2 + Zxeª ÿvi A M nj`y N †Mvjvcx

K‡i †KvbwU? + KBr + K2CO3 + H2O 20. H

 RCOCl C = O †hŠMwU GKwU

K HO  NO L HO  NO2 B HO

M NH3 N  NH2 12. A †hŠMwU i. A¨vj‡Kvnj

5. OH K 1  A¨vj‡Kvnj ii. GwmW

L 1  A¨vwgb iii. weRviK

H3C Cl CH3 M 2  A¨vj‡Kvnj wb‡Pi †KvbwU mwVK?
N 2  A¨vwgb
†hŠMwU wK wn‡m‡e cwiwPZ? K i I ii L i I iii
13. B †hŠ‡Mi MVb
i. KxUbvkK M ii I iii N i, ii I iii
ii. †PZbvbvkK i. RCOONCH3
iii. A¨vw›U‡mc&wUK O 21. AbyeÜx GwmW I ÿviK hyM‡ji g‡a¨
wb‡Pi †KvbwU mwVK? ||
cv_©K¨ wK?
ii. R  C NH2 R
K GKwU H cigvYy L GKwU H+ cigvYy
iii. R  C  NHR
K i L ii M iii N i, ii I iii || M GK AYy cvwb N GKwU OH Avqb
O
6. Fe3O4 Gi Fe Gi RviY gvb 22. Lv`¨k•„ L‡j Cd avZzi AbycÖ‡ek I `l~ ‡Yi
wb‡Pi †KvbwU mwVK?
K +2 L + 2.5 K i L ii M iii N ii I iii d‡j wb‡¤œv³ †iv‡Mi DrcwË nq
14. KZ MÖvg KClO3 †K DËß Ki‡j cÖgvY
M + 2.67 N + 3 Ae¯’vq 20 L Aw·‡Rb cvIqv hv‡e? i. D”P i³Pvc

7. †K›`ªvKlx© weKviK n‡”Q ii. Aw¯’ f½iy Zv

K BF3 L + K 36.49 g L 54.73 g iii. dzmdzm AvµvšÍ
NO2
M 61.01 g N 72.98 g wb‡Pi †KvbwU mwVK?
+ 
M CH3 N CH3 15. `yB Kve©‡bi A¨vjwKb (A) O3 B K i I ii L i I iii

8. M¨v‡mi MwZkw³ wbf©i K‡i Zn/H2O C KMnO4/KOH D M ii I iii N i, ii I iii

i. ZvcgvÎvi Dci C, D Dfq‡K mbv³ K‡i  wb‡Pi DÏxc‡Ki Av‡jv‡K 23 I 24 bs

ii. Pvc I AvqZ‡bi Dci i. [Ag(NH3)2] OH cÖ‡kœi DËi `vI :
NO2
iii. M¨v‡mi cÖKw… Zi Dci Avqib (III) A·vBW + HCl  B + H2O

wb‡Pi †KvbwU mwVK? ii. NH2  NH NO2 'A'

K i, ii I iii L i I ii iii. Cu(OH)2 + NaOH 23. 'A' †hŠ‡Mi A¤øZ¡ KZ?

M ii I iii N i I iii wb‡Pi †KvbwU mwVK? K3 L4

9. CH3  CH  CH3 Gi bvg K i I ii L i I iii M5 N6
M ii I iii N i, ii I iii
| 24. B †hŠ‡Mi `ªeY
OH

i. 2-†cÖvcvbj 16. Zwor ivmvqwbK wmwi‡R Cu avZiz Ae¯’vb K A¤øxq L ÿvixq

ii. iso-†cÖvcvbj i. Fe Gi Dc‡i ii. Ag Gi Dc‡i M cÖkg N wbi‡cÿ

iii. WvB wg_vBj Kvwe©bj iii. H Gi wb‡P 25. 5.0 gm Fe2+ †K RvwiZ Ki‡Z KZ MÖvg

wb‡Pi †KvbwU mwVK? wb‡Pi †KvbwU mwVK? KMnO4 cÖ‡qvRb n‡e?
K i, ii I iii L i I iii
K i I ii L ii I iii K 1.04 L 2.04

M i I ii N ii I iii M i I iii N i, ii I iii M 4.02 N 4.01

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 M 2 K 3 M 4 K 5 M 6 M 7 N 8 N 9 K 10 N 11 K 12 L 13 M
14 N 15 L 16 L 17 L 18 N 19 K 20 M 21 L 22 N 23 N 24 K 25 K

N †mU 4 Kzwgjøv †evW© 2019 welq †KvW : 1 7 7

mgq25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv cY~ ©gvb25

[we‡kl `ªóe¨ : mieivnKZ… eûwbe©vPwb Afxÿvi DËic‡Î c‡Ö kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/ m‡e©vrK…ó Dˇii eË„ wU ej c‡q›U Kjg

Øviv m¤ú~Y© fivU Ki| cÖwZwU cÖ‡kœi gvb 1| mKj cÖ‡kœi DËi w`‡Z n‡e| cÖkcœ ‡Î †Kv‡bv cÖKvi `vM/wPý †`Iqv hv‡e bv|]

1. †Kvb †hŠMwU ndg¨vb ÿ`z ªvskKiY 9. evZv‡m AcwiewZ©Z _v‡K †KvbwU? 17. 0.6 g cvwb‡Z AYiy msL¨v KZ?

wewµqvq cÖ¯‘Z nq? K Na2C2O4 . 2H2O K 2.01  1022 L 3.01  1022

K ROH L RNH2 L Na2S2O3 . 5H2O M 2.01  1023 N 6.02  1023
M RCN N RNO2 M KMnO4 N Na2SO4
18. HCl + HCO3  H2CO3 + Cl GB
2. GK †gvj Al2O3 n‡Z GK †gvj 10. 273 K ZvcgvÎvq †Kv‡bv M¨v‡mi Pvc 1
wewµqvq HCO3 wKiƒc AvPiY K‡i?

A¨vjywgwbqvg †c‡Z KZ cwigvY Zwor atm n‡j 1 Gi gvb 0.04 L nq| 1 Gi K ÿviK L AbyeÜx GwmW
V V M Dfagx© c`v_© N Abey Üx ÿviK
cÖ‡qvRb?
gvb 0.035 L n‡j Pvc Gi gvb KZ? 19. d¨viv‡Wi m~ÎwU cÖ‡hvR¨
K1F L 1.5 F i. B‡jKUª‡bi PvR© Mbbvq
K 1.875 atm L 1.142 atm ii. avZzi cwigvY wbY©q
M 3F N 6F
eRÆÅ cvwb M 0.875 atm N 0.352 atm

3. ˆUÝUvBj wk͸  b`x b`xi 11. cÖgvY Ae¯’vq wb‡¤œv³ †Kv‡li EMF KZ? iii. Zwor we‡køl¨ cwievnxi †ÿ‡Î

cvwb‡Z Sn(s)/Sn2+(aq) || H+(aq)/H2(g) (1 atm. Pt) wb‡Pi †KvbwU mwVK?
i. DO n«vm cvq
ii. BOD n«vm cvq GLv‡b, E LSn2+(aq)/Sn(s) =  0.14 V K i I ii L i I iii

iii. TDS †e‡o hvq K  0.14 V L  0.07 V M ii I iii N i, ii I iii
M + 0.07 V N + 0.14 V

wb‡Pi †KvbwU mwVK? 12. wg_vBj A‡iÄ 20. Kwz Ks wjKvi wK?

K i I ii L i I iii i. A¤øxq gva¨‡g jvj eY© †`q K Na2SO4 I CaSO4 Gi wgkÖY

M ii I iii N i, ii I iii ii. ÿvixq gva¨‡g bxj eY© †`q L Na2S I Na2CO3 Gi ÿvixq wg¤ªY

4. ev¯Íe M¨vm KLb Av`k© M¨v‡mi b¨vq iii. Zxeª A¤ø I g`„ y ÿv‡ii UvB‡Uªk‡b M KvP wk‡í e¨enZ„ GKwU wgkÖY
e¨enZ„ nq N GKwU A¤øxq wgkÖY
AvPiY K‡i?
wb‡Pi †KvbwU mwVK? 21. †KvbwUi cÖfv‡e nvo f½iy nq?

K 0 C ZvcgvÎvq K i I ii L i I iii K Cd L Pb M Cr N As

L wb¤œ ZvcgvÎvq M ii I iii N i, ii I iii 22. T = 25 C
M Kÿ ZvcgvÎvq
N Lye D”P ZvcgvÎvq  wb‡Pi DÏxcK Abymv‡i cieZx© `ywU cÖ‡kœi 16 g O2 P †gvU = 200 mm
†KvbwU DU©R-wdwUM wewµqvq Drcbœ nq?
5. DËi `vI : 32 g CH4
6. K D”PZi A¨vj‡Kb
7. L A¨vjKvBj n¨vjvBW C3H6 (gy³ wkKj) IGRvbvjvBwmm D + CH4 Gi AvswkK Pvc MYbv Ki|
8. M A¨vjKvBj †ebwRb
N wdbvBj n¨vjvBW  K 100 mm L 150 mm
M 160 mm N 200 mm
E.
23. †KvbwU B‡jKUªb AvKlx©?
13. DÏxcK wewµq‡Ki †ÿ‡Î wb‡¤œi †Kvb
K PH3 L NH3 M BF3 N H2O
wewµqv N‡U?
 wb‡Pi DÏxcK Abymv‡i cieZx© `ywU cÖ‡kœi
200 mL K A¨v‡gvwbqvKvj AgNO3-Gi mv‡_ DËi `vI :
1.89 g L nvB‡Wªv‡K¬vwiK Gwm‡Wi mv‡_ cvZb
HNO3
M B‡jKUªb AvKlx© cÖwZ¯’vcb CnHn1OH + Zn  CnHn + ZnO
(A) (B)
DÏxcK `eª ‡Yi †gvjvwiwU KZ? N †K›`ªvKlx© cÖwZ¯’vcb
GLv‡b, n = 6
K 0.10 M L 0.15 M 14. Drcv` 'D' I 'E' 24. 'A' †hŠMwUi Rb¨ †KvbwU cÖ‡hvR¨?

M 0.20 M N 0.25 M i. wfbœ Kvh©Kvix gj~ Kwewkó K Gi Rjxq `ªeY ÿviagx©
L †eªvwgb-cvwb cixÿvq Aat‡ÿc †`q
djz vwib n‡jv ii. †K›`ªvKlx© hyZ wewµqvq wfbœ mwµqZv M jyKvm weKvi‡Ki mv‡_ wewµqv K‡i
N TNT cÖ¯‘wZi gj~ Dcv`vb
i. Kve©‡bi GKwU iƒc‡f` cÖ`k©b K‡i
25. 'B' †hŠMwU
ii. Kve©b b¨v‡bvwUDe iii. Ag `c©Y cixÿv †`q i. B‡jKUªb AvKlx© cÖwZ¯’vcb wewµqv
†`q
iii. D”P NvZmn wb‡Pi †KvbwU mwVK? ii. wd«‡Wj-µvdU wewµqvq AskMÖnY
K‡i
wb‡Pi †KvbwU mwVK? K i L ii iii. A‡_©v-c¨viv wb‡`©kK
wb‡Pi †KvbwU mwVK?
K i I ii L i I iii M i I ii N ii I iii

M ii I iii N i, ii I iii 15. †KvbwU Nbxfeb cwjgv‡ii D`vniY?

†Kvb Aa©‡Kv‡li mv‡_ cÖgvY nvB‡Wªv‡Rb K cwj÷vBwib L cwjw_b

ZworØvi K¨v‡_vW wn‡m‡e KvR K‡i? M cwjwfbvBj †K¬vivBW

K Zn(s)/Zn2+(aq) N cwjG÷vi

L Ag(s)/Ag+(aq) 16. †Kvb Kqjvi wd·W Kve©b me©vwaK?

M Cu(s)/Cu2+(aq) K wcU L wjMbvBU K i I ii L i I iii

N Au(s)/Au3+(aq) M weUwz gbvm N A¨vb_ªvmvBU M ii I iii N i, ii I iii

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 L 2 M 3 L 4 N 5 M 6 L 7 N 8 K 9 K 10 M 11 N 12 L 13 L
14 N 15 N 16 N 17 K 18 K 19 N 20 L 21 K 22 M 23 M 24 L 25 K

m„Rbkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  5

N †mU 5 PÆMÖvg †evW© 2019 welq †KvW : 1 7 7

mgq25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb25

[we‡kl `ªóe¨ : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î c‡Ö kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmgn~ n‡Z mwVK/ m‡e©vrK…ó Dˇii eË„ wU ej c‡q›U Kjg
Øviv m¤úY~ © fivU Ki| cÖwZwU cÖ‡kœi gvb 1| mKj cÖ‡kœi DËi w`‡Z n‡e| cÖkcœ ‡Î †Kv‡bv cÖKvi `vM/wPý †`Iqv hv‡e bv|]

1. K¨v‡jv‡g‡j †Kvb avZz _v‡K? 9. wg_vBj †iW ÿvixq gva¨‡g †Kvb eY© wb‡Pi †KvbwU mwVK?

K Zvgv L `¯Ív cÖ`k©b K‡i? K i I ii L i I iii

M wb‡Kj N cvi` K †e¸bx L nj`y M ii I iii N i, ii I iii

 wb‡Pi DÏxc‡Ki Av‡jv‡K 2 I 3 bs M bxj N jvj 17. FeCl3 `ªe‡Yi mvnv‡h¨ †KvbwU kbv³
Kiv nq?
cÖ‡kœi DËi `vI : 10. †KvbwU cÖavb `ªeY?

C| H3 + HBr  Z K 0.1 g Na2CO3 K †dbj L G÷vi
H2C1 = C 3CH3 L 0.1 M Na2CO3
2 M 0.1 L Na2CO3 M wK‡Uvb N A¨vjwWnvBW
Y N 0.1 mL Na2CO3
18. 100 mL †Wwm‡gvjvi `ªe‡Y KZ MÖvg
2. Z n‡jv 11. K¨v‡_v‡W 1 mol H2 M¨vm Drcbœ n‡Z
H2SO4 `ªexfZ‚ Av‡Q?
K 1-†eªv‡gv-2-wg_vBj †cÖv‡cb wK cwigvY we`¨y r cÖ‡qvRb?
K 98 g L 49 g
L 2-†eªv‡gv-2-wg_vBj †cÖv‡cb
K1F L2F M 4.9 g N 0.98 g
M 1-†evª ‡gv-1-wg_vBj †cÖv‡cb
M 3F N 4F 19. d‡z qj †mj Gi wefe KZ?
N 2-†evª ‡gv-2-wg_vBj †cÖvwcb
12. B‡jK‡UªvwdwjK cÖwZ¯’vcb wewµqvi K 1 L 1.23
3. i. DÏxc‡Ki wewµqvwU
†KvbwU †ewk mwµq? M 2 N 2.5
B‡jK‡UªvwdwjK ms‡hvRb wewµqv
K UjyBb 20. SATP c×wZ‡Z Pv‡ci gvb KZ?
ii. Y Gi C2 sp2 msKwiZ
iii. Y †hŠMwU A¤øagx© L bvB‡Uªv‡ebwRb K 100 atm L 100 cm

wb‡Pi †KvbwU mwVK? M †K¬v‡iv‡ebwRb M 100 Pa N 100 KPa

K i I ii L i I iii N †ebRvjwWnvBW 21. ZvcgvÎv w¯’i _v‡K

M ii I iii N i, ii I iii 13. †KvbwU‡Z A¨vgvBW g~jK we`¨gvb? i. e‡q‡ji m‡~ Î

4. †KvbwU wbDwK¬IdvBj? K RCOOR L RCONH2 ii. Pvj©‡mi m‡~ Î
M RNH2 N RCN
K BF3 L AlCl3 iii. A¨v‡fv‡M‡Wªvi m‡~ Î
14. †KvbwU U‡UvgvwiRg cÖ`k©b K‡i?
M RNH2 N SO3 wb‡Pi †KvbwU mwVK?

5. †KvbwU µv‡qvjvBU K †cÖvcvbj L B_vbj K i I ii L ii I iii

K 3Al2O3 . 2SiO2 M weDUv‡bvb N weDwUb M i I iii N i, ii I iii
L Na2O . 2SiO2
 wb‡Pi DÏxcKwU co Ges cieZx© `ywU 22. GKwU Aw·‡Rb cigvYyi fi KZ?

M Al2O3 . 2SiO2 . 2H2O cÖ‡kœi DËi `vI : K 2.66  1023 g

N 3NaF . AlF3 C6H6 + CH3Br Abv`ÆË AlCl3 X + L 3.76  1022 g
M 1.33  1023 g
6. 25 C ZvcgvÎvq 2 MÖvg He Gi HBr N 1.88  1022 g

MwZkw³ KZ Rjy ? 15. DÏxc‡Ki †KvbwU mwVK?

K 1658 L 1759 K B‡jK‡UªvwdwjK ms‡hvRb wewµqv 23. †KvbwU Dfagx©?
L B‡jK‡UªvwdwjK cÖwZ¯’vcb wewµqv
M 1858 N 1885 M wbDwK¬IwdwjK ms‡hvRb wewµqv K NH3 L HBr

7. †KvbwU RviK I weRviK Dfqiƒ‡c M  N +

wµqv K‡i? HSO4 NH4

K Cu2+ L Sn2+ N wbDwK¬IwdwjK cÖwZ¯’vcb wewµqv 24. M¨vgvw·‡bi ms‡KZ †KvbwU?

M Ag+ N Fe3+ 16. i. X †K RvwiZ Ki‡j †eb‡RvwqK K C6Cl6 L C6H6Cl6

8. SO42 Avq‡b mvjdv‡ii RviY gvb GwmW Drcbœ nq M C6H5Cl N CHCl3
KZ? ii. X A-†cvjvi `ªveK
25. †KvbwU mly g PvwµK †hŠM?

K +2 L + 2.3 iii. X Gi cvk¦© wkKj B‡jKUªb MÖnxZv K b¨vc_vwjb L wdDivb

M + 2.5 N +6 g~jK M wcwiwWb N _v‡qvwdb

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 N 2 L 3 K 4 M 5 N 6 M 7 L 8 N 9 L 10 L 11 L 12 K 13 L
14 M 15 L 16 N 17 K 18 N 19 L 20 N 21 M 22 K 23 M 24 L 25 K

M †mU 6 wm‡jU †evW© 2019 welq †KvW : 1 7 7

mgq25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv cY~ ©gvb25

[we‡kl `ªóe¨ : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î c‡Ö kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ eË„ mg~n n‡Z mwVK/ m‡e©vrKó… Dˇii eË„ wU ej c‡q›U Kjg

Øviv m¤ú~Y© fivU Ki| cÖwZwU cÖ‡kœi gvb 1| mKj cÖ‡kœi DËi w`‡Z n‡e| cÖkcœ ‡Î †Kv‡bv cÖKvi `vM/wPý †`Iqv hv‡e bv|]

1. †ccvi wk‡í weRviK wnmv‡e e¨envi nq 10. wjw_qvg Avqb e¨vUvixi †ÿ‡Î wb‡Pi †KvbwU mwVK?

†KvbwU? i. PvwR©s Gi mgq Co3+ †_‡K Co4+ G K i I ii L i I iii

K H2O2 L NaHSO3 RvwiZ nq M ii I iii N i, ii I iii

M Cl2O7 N KMnO4 ii. wWmPv‡R©i mgq Co4+ Avqb †_‡K 17. cvbxq R‡j WHO KZ…©K Aby‡gvw`Z pH

2. †jW mgš^qK †Kv‡li Av‡cwÿK ¸iæZ¡ KZ? Co3+ Avq‡b weRvwiZ nq gvb KZ?

K 1.70 L 1.52 M 1.39 N 1.28 iii. †fv‡ëR n‡”Q 1.23 V K 3.5 n‡Z 6.4 L 6.5 n‡Z 8.5
M 7.5 n‡Z 9.4 N 9.5 n‡Z 12.0
3. wi-mvBwK¬s Gi myweav n‡jv wb‡Pi †KvbwU mwVK?

i. Drcv`b e¨q K‡g hvq 18. > 40 C
N2Cl + H2O  'A' + N2
ii. ˆe`¨y wZK kw³i LiP Kg K i I ii L i I iii

iii. cwi‡ek myiÿv nq M ii I iii N i, ii I iii + HCl

wb‡Pi †KvbwU mwVK? 11. Pvgov wk‡í U¨vbvix e‡R©¨ Dcw¯’Z ÿwZKi DÏxc‡Ki 'A' †hŠMwUi †ÿ‡Î †KvbwU

K i I ii L ii I iii Dcv`vb †KvbwU? mwVK?

M i I iii N i, ii I iii K As L Pb M Ni N Cr i. A¤øagx©

4. M¨vm †µvgv‡UvMvÖ wd‡Z evnK M¨vm wnmv‡e 12. Y ii. 'A' †hŠ‡Mi Kvh©Kix g~jK A‡_©v-c¨viv

 KvR K‡i †KvbwU? i. T1 > T2 > T3 wb‡`©kK

5. K O2 L Cl2 V T1 iii. NaOH Gi mv‡_ wewµqv K‡i
T2
M NH3 N N2 T3 †ebwRb Drcbœ K‡i

X wb‡Pi †KvbwU mwVK?
P

wb‡Pi DÏxc‡Ki Av‡jv‡K 5 I 6bs cÖ‡kœi Y

DËi `vI : ii. T1 > T2 > T3 K i I ii L i I iii
V T1
T2
M ii I iii N i, ii I iii
CH3  CH2  Cl + KOH(aq)  T3

X + KCl X 19. wb‡Pi †Kvb †hŠMwU Av‡jvK mwµq †hŠM?

wewµqvwU P1 P1 K CH3CH = CHCH3
L (CH3)3 C  OH
Y P2
P3
iii. P1 > P2 > P3
V

K GKvYweK †K›`ªvKlx© cÖwZ¯’vcb X M CH3CH (NH2) COOH
T
L †K›`ªvKlx© hyZ N NO2CH  Cl
20. CO2 M¨v‡mi mwÜPvc evqygÐjxq GK‡K
M B‡j‡±ªvwdwjK cÖwZ¯’vcb
N AcmviY Av`k© M¨v‡mi Rb¨ †KvbwU mwVK? KZ?
[we.`ª. : wewµqvwU wØ-AvYweK †K›`ªvKl©x
cÖwZ¯’vcb] K i I ii L i I iii K 31.1 L 72.9
M 76 N 760
X M ii I iii N i, ii I iii
21. me‡P‡q `ye©j GwmW †KvbwU?
6. i. Nb H2SO4 Gi mv‡_ wewµqvq 13. 0.25 †gvj GKwU M¨vm 24.63 atm Pv‡c
K HNO3 L HClO4
0.5 wjUvi AvqZb cv‡Î Av‡Q| KZ M H2SO4 N H3PO4

A¨vjwKb Drcbœ K‡i ZvcgvÎvq M¨vmwU Av`k© AvPiY Ki‡e? 22. H2(g) + Cu2+(aq)  2H+(aq) + Cu(s)

ii. jyKvm weKvi‡Ki mv‡_ ZrÿYvr K 0 C L 25° C Ecell = 0.34 V
wewµqv K‡i M 300 K N 600 K
DÏxc‡Ki †Kvl wewµqvwU‡Z A¨v‡bv‡Wi

iii. Av‡qv‡Wvdg© wewµqv †`q 14. wb‡Pi †KvbwU A¨vjWj Nbxfeb wewµqv RviY wewµqv †KvbwU?

wb‡Pi †KvbwU mwVK? cÖ`k©b K‡i? K Cu2+ + 2e  Cu

K i I ii L i I iii K ArCHO L HCHO L Cu  Cu2+ + 2e

M ii I iii N i, ii I iii M CH3CHO N (CH3)  C  CHO M H2  2H+ + 2e
N 2H+ + 2e  H2
7. †KvbwU nvB‡WªvKve©b? 15. 0.01 M 250 mL H2SO4 `ªe‡Yi NbgvÎv
23. STAP †Z †Kv‡bv M¨v‡mi †gvjvi AvqZb
K †c‡Uªvj L wPwb ppm GK‡K KZ?
KZ?
M †mjy‡jvR N wcwfwm K 9.8 ppm L 98 ppm
K 22.04 L L 22.4 L
8. b¨v‡bvKYvi cwimi KZ nm? M 2500 ppm N 980 ppm M 24.04 L N 24.789 L

K 1  100 L 101  150 16. 450 C 24. †m‡KÛvix ÷¨vÛvW© c`v_©

M 200  300 N 1  1000 3(CH  CH) Fe P‚YÆ 'A' K H2C2O4 . 2H2O L Na2S2O3 . 5H2O

9. A¨vjKvBj A¨vj‡Kvn‡ji ms‡KZ †KvbwU? i. 'A' †hŠMwU A¨v‡iv‡gwUK M Na2C2O4 . 2H2O N K2Cr2O7

K CH3  CH2  CH2  OH ii. 'A' †hŠMwU †eªvwgb `ªeY cixÿv cÖ`k©b 25. 10% Na2CO3 250 mL `ªe‡Y wK cwigvY

L CH3  CH  CH3 K‡i bv cvwb wgkv‡j `ªe‡Yi NbgvÎv †mwg‡gvjvi
|
OH n‡e?
M CH2 = CH  CH2  OH iii. DÏxc‡Ki wewµqvwU GKwU
K 220 mL L 235 mL
N CH3  CH = CH  OH cwjgviKiY wewµqv M 250 mL N 1000 mL

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 K 2 N 3 M 4 N 5 * 6 L 7 K 8 K 9 M 10 K 11 N 12 L 13 N
14 M 15 N 16 N 17 L 18 K 19 M 20 L 21 N 22 M 23 N 24 L 25 K

m„Rbkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  7

N †mU 7 ewikvj †evW© 2019 welq †KvW : 1 7 7

mgq25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb25

[we‡kl `ªóe¨ : mieivnKZ… eûwbe©vPwb Afxÿvi DËic‡Î c‡Ö kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmgn~ n‡Z mwVK/ m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg

Øviv m¤ú~Y© fivU Ki| cÖwZwU cÖ‡kœi gvb 1| mKj cÖ‡kœi DËi w`‡Z n‡e| cÖkcœ ‡Î †Kv‡bv cÖKvi `vM/wPý †`Iqv hv‡e bv|]

1. KvMR Drcv`‡b weiÄK wn‡m‡e wb‡Pi †KvbwU mwVK? 19. OH Gi AbyeÜx ÿviK †KvbwU?

†KvbwU e¨enZ„ nq? K i I ii L ii I iii K H2O L O2
M i I iii N i, ii I iii
K Na2SO4 L Na2CO3 11. STAP †Z Aw·‡Rb M¨v‡mi RMS M O2 N H3O+
M NaOH N Ca(OCl)Cl †eM KZ ms1?
20. †KvbwU mwVK?
2. IR eYv© jx‡Z †Kvb †hŠ‡Mi C = O K 15.24 L 123.51
MÖæ‡ci †kvlY e¨vÛ D”P Zi½msL¨vi M 461.28 N 481.94 KV LV

n‡e?  DÏxc‡Ki Av‡jv‡K 12 I 13 bs TK t° C

K R  CHO L R  COOH cÖ‡kœi DËi `vI : MV NV
M R  COCl N R  CO  R
Fe2+ + 2 + H+  A + Cr3+ + H2O P 1/P
3. 3 mL 0.1 M Kw÷K †mvWv `ªe‡Y 1
mL 0.3 M Kw÷K †mvWv `ªeY †hvM Cr2O7 21. ZworØvi¸‡jvi g‡a¨ †KvbwU A¨v‡bvW
wn‡m‡e KvR K‡i?
Kiv nj| wgwkÖZ `ªe‡Yi ppm NbgvÎv 12. DÏxc‡Ki wewµqvq
KZ? K Zn2+(aq)/Zn(s)
i. A RviK L Fe2+(aq)/Fe(s)
M Ag+(aq)/Ag(s)
K 12000 L 8000 ii. H+ weRviK N H+(aq)/H2(g), Pt

M 6000 N 4000 iii. Cr2O72 weRvwiZ n‡q‡Q 22. †ebwRb P‡µ  NO2 gj~ K _vK‡j
4. 1.032 g Aw·‡Rb I 0.573 g Kve©b wb‡Pi †KvbwU mwVK? †Kvb Kve©‡b B‡jKUªb NbZ¡ †ewk
_v‡K?
WvBA·vBW M¨vm wgk‡Ö Y Kve©b K i I ii L i I iii
M ii I iii N i, ii I iii K2 L3
WvBA·vB‡Wi †gvj fMœvsk KZ? 13. DÏxc‡Ki 20 mL 0.05 M RviK M4 N6
`ªeY‡K weRvwiZ Ki‡Z KZ mL
K 0.832 L 0.713 †Wwm‡gvjvi weRviK `ªeY cÖ‡qvRb n‡e? 23. 3 A¨vj‡Kvnj (i)B RMgX
M 0.357 N 0.287
K 20 L 40 (ii)H2O
5. A¤øxq gva¨g KMnO4 KZwU B‡jKUªb M 60 N 80
MÖnY K‡i? (i)A 1 A¨vj‡Kvnj

K3 L4 14. evqgy ø†ji ÷ªv‡Uv‡ùqvi ¯Í‡ii cÖavb (ii)H2O
M5 N6
Dcv`vb n‡jv RMgX Gi mv‡_ wewµqvq
6. †KvbwU cÖvBgvix ÷¨vÛvW© c`v_©?
K Aw·‡Rb L wbqb AskMÖnYKvix †hŠM `ywUi g‡a¨
K Na2CO3 L KMnO4 M I‡Rvb NKve©b WvBA·vBW i. A †hŠMwU wg_vb¨vj
M NaOH N Na2S2O3 15. AMÖMY¨ g~jK †KvbwU? ii. B †hŠMwU A¨vjWj Nbxfeb

7. nvB‡Wªv‡Rb dz‡qj †m‡j K  NH2 L  COOH wewµqv †`q
i. Kvh©`ÿZv 65% iii. mvaviY ZvcgvÎvq Dfq Drcv`B
M  CHO N CO
ii. R¡vjvwb wn‡m‡e H2 M¨vm e¨en„Z 16. †Kvb AvqbwU mn‡R PvR©g³y nq? jKy vm weKvi‡Ki mv‡_ wewµqv
nq K‡i
K Cu2+ L H+ wb‡Pi †KvbwU mwVK?
iii. A¨vjKvwji NbgvÎv AcwiewZ©Z M Au3+ N Ag+
_v‡K 17. 8g He M¨v‡mi Rb¨ f¨vÛvi-Iqvjm K i I ii L ii I iii
M i I iii N i, ii I iii
wb‡Pi †KvbwU mwVK? mgxKiY 24. †Kvb wewµqvq Kve©b wkKj ew„ × Kiv

K i I ii L ii I iii K P + V4a2 (V  2b) = 2RT hvq?
M i I iii N i, ii I iii
L P + 2Va22 (V  2b) = 2RT K ndg¨vb wW‡MÖ‡Wkb
8. †KvbwU B‡jK‡UªvdvBj? L wWKve©w·‡jkb
M Av‡qv‡Wvdig
K NH3 L H2O N DU©R
25. b¨v‡bv KYvi cwimi KZ nm?
M OH N AlCl3 M P + V4a2 (V  2b) = 4RT
9. K¨vj‡Kwiqvm `ªe¨ †KvbwU? K 0.01  0.10 L 1  100
M 200  300 N 400  500
K Pzbvcv_i L A¨vjywgbv N P + V2a2 (V  2b) = 2RT
M wmwjKv N wRcmvg 18. ÿviK a‡g©i †Kvb µgwU mwVK?
10. †dnwjs `ªe‡Y Cu2O Gi Aat‡ÿc
K R3N > R2NH > RNH2 > NH3
†`q L R2NH > R3N > RNH2 > NH3
M R2NH > RNH2 > R3N > NH3
i. R  CO  R N R2NH > RNH2 > NH3 > R3N

ii. R  CHO

iii. HCOOH

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 N 2 M 3 M 4 N 5 M 6 K 7 L 8 N 9 K 10 L 11 N 12 L 13 M
14 M 15 L 16 M 17 K 18 L 19 L 20 N 21 K 22 L 23 K 24 N 25 L

N †mU 8 w`bvRciy †evW© 2019 welq †KvW : 1 7 7

mgq25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb25

[we‡kl `ªóe¨ : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î c‡Ö kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ eË„ mg~n n‡Z mwVK/ m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg

Øviv m¤ú~Y© fivU Ki| cÖwZwU cÖ‡kœi gvb 1| mKj cÖ‡kœi DËi w`‡Z n‡e| cÖkcœ ‡Î †Kv‡bv cÖKvi `vM/wPý †`Iqv hv‡e bv|]

1. mvaviY ZvgcÎvq H2O †_‡K H2 10. KMnO4 + H2SO4 + FeC2O4  19. STAP-†Z 48 g O2 Gi MwZkw³ KZ
Drcv` ; D³ wewµqvi mgZvKZ…
cÖwZ¯’vcb Ki‡Z cv‡i mgxKi‡Y RviK I weRvi‡Ki †gvj msL¨v Ryj? L 3.716  103

K Ca L Mg M Zn N Pb K 5.574  103

2. µvdU c×wZ‡Z cví ˆZwi‡Z KzwKs h_vµ‡g M 3.404  103 N 1.115  103

wjKv‡i †KvbwU e¨enZ„ nq? K 2 I5 L2I6 20. KvP Drcv`‡b wKD‡jU †hvM K‡i

K 15% Na2SO4, 16% NaOH I 36% M3I5 N3I6 i. wgk‡Ö Yi Mjb ZvcgvÎv Kgv‡bv hvq

CaCl2 `ªeY 11. Zwor ivmvqwbK Zjz ¨v¼ †KvbwUi †ewk? ii. Drcv`b e„w× Kiv hvq

L 25% Ca(OH)2, 13% Na2SO3 I 29%  K Ag L Cu M Fe N Cr iii. AcPq †iva Kiv hvq
NaNO3 `ªeY wb‡Pi †KvbwU mwVK?
DÏxcKwU co Ges 12 I 13bs cÖ‡kœi K i L i I ii
M 6% CH3COOH, 12% Na2SO4 I 49% DËi `vI :

KHCO3 `ªeY M ii I iii N i, ii I iii

N 27% Na2S, 26% NaOH I 14% 0.075 mole 0.5 M 21. 16 g He M¨v‡mi Rb¨ mwVK f¨vbWvi

Na2CO3 `ªeY NaOH HCL Iqvjm mgxKiY †KvbwU?
150 mL
`ªeY
3. GwmW ew„ ó‡Z †Kvb Gwm‡Wi fw‚ gKv `ªeY 100 mL
a
p + v2
me‡P‡q Kg? ( )K (v  b) = RT

K H2SO4 L HNO3 cvÎ-A cvÎ-B 16a
p + v2
M H2CO3 N HCl 12. A cv‡Îi `ªe‡Yi NbgvÎv ppm GK‡K ( )L (v  4b) = 4RT

4. 2-wg_vBj †c›U-2-Aj cÖ¯‘wZ‡Z wewµqv KZ? 16a
p + v2
NUv‡Z n‡e K 2.0  104 L 0.5  104 ( )M (v  4b) = RT

i. †cÖvcv‡bvj + †cÖvcvBj g¨vM‡bwkqvg M 2  102 N 2  105 a
Av‡qvWvBW p + v2
[we.`ª. : mwVK DËi 3  103 ppm] ( )N (v  b) = 4RT
ii. weDUv‡bvb + B_vBj g¨vM‡bwmqvg
Av‡qvWvBW 13. A I B cv‡Îi `ªe‡Yi wgkÖY  DÏxcKwU co Ges 22 I 23 bs cÖ‡kœi
i. A¤øxq cÖKw… Zi
iii. 2-†c›Uv‡bvb + wg_vBj g¨vM‡bwkqvg ii. wg_vBj †iW †hv‡M nj`y eY© aviY DËi `vI :
Av‡qvWvBW Ki‡e
iii. Gi pH = 13 n‡e Pvi Kve©bh³y A¨vjwKb M Gi
wb‡Pi †KvbwU mwVK? wb‡Pi †KvbwU mwVK?
K i L i I ii K i L i I ii I‡RvbjvBwm‡m A I B †hŠM cvIqv hvq|

A U‡jb weKvi‡Ki mv‡_ wewµqv bv

w`‡jI B wewµqv †`q|

M i I iii N i, ii I iii M ii I iii N i, ii I iii 22. M n‡jv

5. †Kvb M¨vjfvwbK †m‡ji †Kvl wefe †ewk? 14. evqgy Їji me‡P‡q kxZjZg ¯Íi †KvbwU? K weDU-2-Bb

K WªvB †mj L †jW-GwmW †mj K Uª‡cvwùqvi L †g‡mvwùqvi L weDU-1-Bb

M nvB‡Wªv‡Rb dz‡qj †mj M ÷ª¨v‡Uvwùqvi N _v‡g©vwùqvi M 2-wg_vBj †cÖvc-1-Bb

N wjw_qvg Avqb †mj 15. Av‡jvK mwµq mgvYyZv cÖ`k©b K‡i bv N †cÖvwcb-1

6. GKB ZvcgvÎv I Pv‡c mgcwigvY (fi) †Kvb †hŠMwU? 23. DÏxcK n‡Z

A, B I C M¨vm c_„ Kfv‡e mgAvqZ‡b K 2-†cÖvcvbj L 2-weDUvbj i. A n¨v‡jvdig wewµqv †`q

iwÿZ Av‡Q| GLv‡b MA > MC > MB M UviUvwiK GwmW N j¨vKwUK GwmW ii. B K¨vwbRv‡iv wewµqv †`q bv

n‡j †KvbwU mwVK? 16. 250 mL †mw›U‡gvjvi `ªeY cÖ¯‘wZ‡Z KZ iii. M Gi mv‡_ HBr Gi hyZ wewµqvq

K PA = PB = PC L PA > PB > PC MÖvg A·vwjK GwmW cÖ‡qvRb n‡e? gviKwbKf m~Î cÖ‡hvR¨

M PB < PC < PA N PB > PC > PA K 0.225 L 0.315 wb‡Pi †KvbwU mwVK?

7. U¨vbvwii †µvwgqvg Avqb E.T.P-i †Kvb M 11.250 N 15.750 K i L ii I iii

cÖwµqvq c„_K Kiv hvq? 17. Fe/Fe2+ A¨v‡bvW n‡j wb‡Pi †KvbwU M i I iii N i, ii I iii

K cÖfveb L Zwor we‡kølY K¨v‡_vW wn‡m‡e e¨envi Kiv hv‡e? 24. †µvwgK mvj‡dU `ªe‡Y 3A we`¨y r 6 NÈv

M RxecÖhyw³ cÖ‡qvMN m²~ QuvKb K Zn/Zn2+ L Mg/Mg2+ Pvjbv Ki‡j KZ MÖvg †µvwgqvg mwÂZ
M Al/Al3+ N Au/Au3+
8. A¨vb_ªvwm‡b mÂviYkxj B‡jKUªb msL¨v n‡jv Kqjv n‡e?
18. R¡vjvwb gv‡bi wfwˇZ †Kvb
K 18 L 14 M 10 N 6 K 11.64 L 14.21
me‡P‡q fvj? M 17.46 N 21.32
9. 95% (w/w) weï× Pzbvcv_‡ii 120 g wb‡q
K wcU Kqjv 25. wb‡Pi †KvbwU RviK I weRviK Dfq
AwZwi³ HCl Gwm‡W `ªexfZ‚ Ki‡j STP-
L wjMbvBU Kqjv wn‡m‡e wµqv K‡i?
†Z KZ wjUvi CO2 M¨vm cvIqv hvq? M A¨vb_ªvmvBU Kqjv
K HNO3 L H2S
K 29.75 L 28.26 M Cl2 N SO2
N weUzwgbvm Kqjv
M 26.89 N 25.55

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 L 2 N 3 N 4 M 5 N 6 N 7 L 8 L 9 N 10 K 11 K 12 K 13 M
14 L 15 K 16 K 17 N 18 M 19 K 20 M 21 L 22 M 23 M 24 K 25 N

m„Rbkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  9

N †mU 9 mKj †evW© 2018 welq †KvW : 1 7 7

mgq25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv cY~ ©gvb25

[we‡kl `ªóe¨ : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î c‡Ö kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ eË„ mgn~ n‡Z mwVK/ m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg

Øviv m¤úY~ © fivU Ki| cÖwZwU cÖ‡kœi gvb 1| mKj cÖ‡kœi DËi w`‡Z n‡e| cÖkcœ ‡Î †Kv‡bv cÖKvi `vM/wPý †`Iqv hv‡e bv|]

1. †Kvb †hŠ‡M ÔbvBUªvBjÕ Kvh©Kix 10. A¨vjwWnvBW I wK‡Uv‡bi g‡a¨ cv_©K¨ 17. welg PvwµK †hŠ‡M Dcw¯’Z cigvYy nj
gj~ KwU we`¨gvb? wbiƒc‡Yi Rb¨ e¨en„Z nq
i. U‡jb weKviK i. Kve©b
K CH3NH2 L CCl3NO2 ii. IR-eYv© jx
M CH3CN N NH4CNO ii. mvjdvi
iii. 2, 4-DNPH
2. cÖgvY KMnO4 `ªe‡Yi mvnv‡h¨ iii. Aw·‡Rb
wb‡Pi †KvbwU mwVK?
Avqib (II) Avq‡bi cwigvY wba©vi‡Y K i L i I ii wb‡Pi †KvbwU mwVK?

wb‡`©kK wnmv‡e †KvbwU KvR K‡i? K i I ii L i I iii

K cUvwkqvg cvig¨v½v‡bU M i I iii N i, ii I iii M ii I iii N i, ii I iii

L wg_vBj A‡iÄ 11. 5 g Na2CO3 100 g `ªve‡K `ªexf‚Z 18. †jW †÷v‡iR †m‡j †KvbwU weRvwiZ nq?
M †dbjd&_¨vwjb K‡i `ªeY ˆZwi Kiv nj| `ªe‡Yi K Pb L PbO
NbgvÎv wKfv‡e cÖKvk Kiv hvq? M PbSO4 N PbO2
N Avqib (II) `ªeY 19. †Kvb weKviK †dbwjK  OH
3. AvwR©‡jwmqvm `ªe¨ †KvbwU? K % (w/v) L % (v/w)
M % (w/w) N % (v/v)
K Pzbvcv_i L Pzb mbv³Ki‡Y e¨en„Z nq?
M wRcmvg N A¨vjywgbv 12. M(III) mvj‡dU `ªe‡Y 0.1 A we`¨y r
4. 0.025 M KOH `ªe‡Y KOH Gi fi cÖevwnZ Ki‡j K¨v‡_v‡W 1.0 g M Rgv K †dwiK †K¬vivBW
5. nq| (avZz M Gi cvt fi 40) L avZe †mvwWqvg
KZ n‡e? 1.0 g M avZz Rgv n‡Z wK cwigvY M jyKvm weKviK
 mgq jvM‡e? N †mvwWqvg evBKve©‡bU
K 1.0 g L 1.4 g 20. †Kvb c×wZ‡Z Kve©b-wkKj n«vm Kiv hvq?
6. M 10.0 g N 14.0 g
FGD cøv‡›Ui gva¨‡g †KvbwU `i~ Kiv K 20 s L 1206 s K DU©R wewµqv
M 24,125 s N 72,375 s L wWKve©w·‡jkvb wewµqv
hvq bv? 13. †KvbwU‡Z we`¨y r kw³ Drcbœ nq bv? M DU©R-wdwUM wewµqv
N Kvwe©j-A¨vwgb wewµqv
K SOx L NOx K Zwor we‡køl¨ †Kvl 21. Pvqbv-†K¬ Gi ms‡KZ †KvbwU?
M CO2 N CO
wb‡¤œi DÏxcKwU co Ges cieZx© `wy U L †jW mÂqK †Kvl K 3Al2O3.2SiO2
M wjw_qvg Avqb e¨vUvwi L Na2O.Al2O3.6SiO2
cÖ‡kœi DËi `vI : N M¨vjfvwbK †Kvl M CaO.Al2O3.6SiO2
N Al2O3.2SiO2.2H2O
CH3  CH2  CH2  CH(Br)  CH3  wb‡¤œi DÏxcKwU co Ges cieZx© `wy U
+ KOH cÖ‡kœi DËi `vI : 22. ZvcgvÎvi mv‡_ AvqZb cwieZ©bkxj

(alc)  A + H2O + KBr Zn(s) + FeSO4(aq)  ZnSO4(aq) + nq †KvbwU‡Z?
Fe(s)
DÏxc‡Ki 'A' †hŠM Zn(s) | Zn2+(aq) = + 0.76 V Fe(s) | K e‡q‡ji m~Î
Fe2+(aq) = + 0.44V L Pvj©‡mi mÎ~
i. R¨vwgwZK mgvYZy v †`Lvq M Wvë‡bi AvswkK Pvc mÎ~
14. DÏxc‡K ewY©Z †mjwUi †Kvl wefe KZ?
ii. gvK©wbKf wbqg †g‡b P‡j
K  0.42 V L  1.20 V
iii. †evª wgb `ªeY‡K eY©nxb K‡i M + 0.42 V N + 1.20 V

wb‡Pi †KvbwU mwVK? [we. `ª. : mwVK DËi + 0.32 V]

K i I ii L i I iii 15. DÏxcK wewµqvi Rb¨ mwVK Z_¨ N MÖvnv‡gi e¨vcb mÎ~
M ii I iii N i, ii I iii
7. DÏxc‡Ki wewµqvwU †Kvb ai‡bi? 23. 1wU bvB‡Uªv‡Rb AYiy fi KZ?
nj
K B‡jK‡UªvwdwjK hZy wewµqv i. Avqib cv‡Î wRsK `ªeY ivLv hv‡e K 2.32  1026 kg
L GKvYweK †K›`ªvKlx© cÖwZ¯’vcb wewµqv
M wØ-AvYweK †K›`ªvKlx© cÖwZ¯’vcb wewµqv ii. wRsK cv‡Î Avqi‡bi `ªeY ivLv hv‡e L 2.32  1023 kg
iii. †Kvl wewµqv ¯^ZtùZ‚ © n‡e
wb‡Pi †KvbwU mwVK? M 4.65  1026 kg
N AcmviY wewµqv
8. †Kvb †hŠMwU B‡jK‡UªvwdwjK hyZ K i L ii N 4.65  1023 kg
9. wewµqvq †ewk mwµq?
K weDwUb L †c›UvBb-1 M i I iii N i, ii I iii 24. (i) HCl + HCO3 F H2CO3 + Cl
M †c›UvBb-2 N weD‡Ub 16. RviK I weRvi‡Ki †gvjmsL¨v x I y,
wb‡¤œi †Kvb gvbwU `w~ lZ cvwbi wb‡`©kK? AvqZb V0 I VR Ges NbgvÎv M0 I (ii) HCO3 + H2O F H3O+ + CO32
K pH gvb 6.4  7.4 Gi g‡a¨ MR n‡j RviY-weRviY UvB‡Uªk‡bi
L DO gvb 6 mg/L g~jbxwZ †KvbwU? DÏxcK Abmy v‡i Dfagx© c`v_©
M BOD gvb 2 mg/L
N COD gvb 100 mg/L †KvbwU?

K HCl L H2O

K xV0MR = yVRM0 M HCO3 N CO32
L yV0M0 = XVRMR 25. †KvbwU jyBm GwmW?
M XV0M0 = yVRMR
N yV0MR = XVRM0 K NH3 L AlCl3
M H2O N C2H4

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 M 2 K 3 N 4 L 5 N 6 N 7 N 8 K 9 N 10 L 11 M 12 N 13 K
14 * 15 M 16 L 17 N 18 N 19 K 20 L 21 N 22 L 23 M 24 M 25 L

GBPGmwm cix¶vi cÖkcœ Î : m„Rbkxj

10 XvKv †evW© 2019 welq ˆKvW : 1 7 7

mgq2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ cY~ ©gvb50

[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| wb‡Pi DÏxcK¸‡jv co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h‡Kv‡bv cvu PwU cÖ‡kœi DËi `vI|]

1 K. b¨v‡bv KYv Kv‡K e‡j? 1

`ªeY-1 15 mL 0.02 M H2C2O4 L. HSO4 AbyeÜx ÿviK Kx? e¨vL¨v Ki| 2
`ªeY-2 5 mL 10% NaOH M. cvÎ-1 Gi M¨v‡mi AYmy sL¨v wbY©q Ki| 3

wb‡`©kK pH Gi cwieZ©b N. ÷c KK© †Lvjv Ae¯v’ q cvÎ-1 I cvÎ-2 n‡Z cvÎ-3

A 3.1  4.4 G †Kvb M¨vmwU Av‡M †cŠuQv‡e? MvwYwZKfv‡e we‡kølY

B 8.3  10.0 Ki| 4

K. †ccUvBW eÜb Kv‡K e‡j? 1 5 [O] HCHO Zn.Hg
A 
MvpHCl B + H2O
L. wd«‡Wj-µ¨vdU wewµqvq Abv`ª© AlCl3 e¨envi Kiv nq
†Kb? 2 K. COD Kv‡K e‡j? 1

M. `ªeY-2 Gi NbgvÎv ppm GK‡K wnmve Ki| 3 L. KvP wk‡ívrcv`‡b wKD‡jU †Kb e¨envi Kiv nq? 2

N. `ªeY-1 †K `ªeY-2 Øviv UvB‡Uªk‡b DÏxc‡Ki †Kvb M. DÏxc‡Ki 'B' n‡Z GKwU ¸iæZ¡c~Y© mvi Drcv`‡bi

wb‡`©kKwU Dch³y ? we‡kølY Ki| 4 g~jbxwZ †jL| 3

2 N. DÏxc‡Ki 'A' wmjfvi `c©Y cixÿv †`Lv‡Z cv‡i wK?

we‡kølY Ki| 4

6  (i) Fe2+ + MnO4 + H+  Fe3+ + Mn2+ + H2O

(ii) I2 + S2O32  S4O62 + I

(iii) HCOOH + Na2CO3  HCOONa + H2O + CO2 1

K. ETP Kv‡K e‡j?

K. d¨viv‡Wi cÖ_g mÎ~ wU wjL| 1 L. †j`vi U¨vwbs G NaCl e¨envi Kiv nq †Kb? 2

L. wm‡g‡›U wRcmvg †hvM Kiv nq †Kb? 2 M. (i) bs wewµqvq RviK I weRviK c`v_© wPwýZ K‡i

M. 'A' n‡Z wKfv‡e GKwU A¨v‡iv‡gwUK †hŠM cÖ¯‘Z KviY eY©bv Ki| 3

Ki‡e? eYb© v Ki| 3 N. (ii) bs I (iii) bs wewµqv GKB ai‡bi wK? we‡kølY
Ki| 4
N. 'A' I 'B' Gi g‡a¨ †KvbwU AwaK A¤øxq? we‡kølY

Ki| 4 7  1bs †Kv‡li Dcv`vb : Pb, PbO2, H2SO4
2bs †Kv‡li Dcv`vb : Li2+, LiCoO2, Bw_wjb Kve©‡bU
3  2‘B' (i) O3 'A' KOH(alc) 'X' KOH(aq) 'Y' 3bs †Kv‡li Dcv`vb : H2, O2, KOH
(ii) Zn/H2O   K. Zwor ivmvqwbK †Kvl Kv‡K e‡j?

K2Cr2O7  'Z' 1
+ H2SO4
L. b¨vc_vwjb A¨v‡iv‡gwUK †hŠM wK? e¨vL¨v Ki| 2
'X' = C4H9Br Gi GKwU mgvYy
M. 2bs †Kv‡li PvwR©s I wWmPvwR©s cÖwµqv eY©bv Ki| 3
'Z' A_ev 'B' + 2, 4  DNPH  nj`y Aat‡ÿc
N. 1bs I 3bs Dcv`vb Øviv MwVZ †Kvlmg‡~ ni g‡a¨
'B' + U‡jb weKviK  Ag `c©Y
†KvbwU AwaK cwi‡ek evÜe? we‡kølY Ki| 4
K. Nbxfeb cwjgvi Kv‡K e‡j? 1
8
L. NaCl(aq) Zwor we‡køl¨ wK? e¨vL¨v Ki| 2
wkí Dcv`vb
M. DÏxcK Abmy v‡i 'X' †hŠ‡Mi MvVwbK ms‡KZ wbY©q
1bs evq,y cÖvKw… ZK M¨vm
Ki| 3
2bs Pvgov, Pzb, Na2Cr2O7.H2SO4
N. 'B' I 'Z' †hŠ‡Mi †K›`ªvKlx© hZy wewµqvi mwµqZv 3bs cyivZb RvnvR

GKB n‡e wK? we‡kølY Ki| 4 K. weqvi-j¨v¤^v‡U©i mÎ~ wU wjL| 1

4 L. †iwmwgK wgkYÖ Av‡jvK mwµq wK? e¨vL¨v Ki| 2

20 C 2 cm 20 C 2 cm 20 C M. 3bs wk‡íi Dcv`vb n‡Z †jvnv Drcv`b eY©bv Ki| 3

0.54 g 0.21 g

300 mL 600 mL 200 mL N. cwi‡ek `~l‡Y 1 I 2bs wk‡íi g‡a¨ †KvbwUi f‚wgKv
780 mm 1.20 atm
†ewk? we‡kølY Ki| 4

mR„ bkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  11

11 ivRkvnx †evW© 2019 welq ˆKvW : 1 7 7

mgq2 NÈv 35 wgwbU imvqb wØZxq cÎ mR„ bkxj cÖkœ c~Y©gvb50

[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| wb‡Pi DÏxcK¸‡jv co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h‡Kv‡bv cvu PwU cÖ‡kœi DËi `vI|]

1  25 C ZvcgvÎvq wb‡¤œi †jLwPÎ cvIqv †Mj : 5

A

PV L-atm  1.5 Z > 1 B H2SO4 15 mL 0.3 M KMnO4
1.0 C
1.5 g Aweï× Fe

0.5

0.0 50 100 150 200 K. e.m.f Kv‡K e‡j? 1
P(atm) 

K. ev¯Íe M¨vm Kv‡K e‡j? 1 L. Fe2+ GKwU RviK c`v_©  e¨vL¨v Ki| 2
L.
M. HSO4- Dfagx© c`v_© †Kb? 2 M. DÏxc‡Ki RviK c`v‡_©i cY~ © cÖkg‡b 25 mL H2O2
N. STP †Z X we›`y‡Z M¨v‡mi AvqZb wbY©q Ki| 3
†hvM Kiv n‡j H2O2 Gi NbgvÎv wbY©q Ki| 3
2
A, B I C M¨v‡mi ms‡KvPbkxjZv ¸Yv¼ (Z) Gi N. DÏxc‡Ki Av‡jv‡K Aweï× †jvnvi †fRv‡ji cwigvY

gv‡bi wfbœZvi KviY we‡kølY Ki| 4 wbY©q Kiv hvq wKbv  MvwYwZKfv‡e we‡kølY Ki|

[Fe = 55.85] 4

6  A PdBaSO4 B O2 C + D + ZnO; 1

H2 Zn

A †hŠMwU wZb Kve©bwewkó A¨vjKvBb|

K. B‡jK‡UªvdvBj Kv‡K e‡j?

K. Kvh©Kix g~jK Kv‡K e‡j? 1 L. A¨vjKvBb-1 A¤øag©x wKš‘ A¨vjKvBb-2 A¤øag©x bq
L. M.
M. DU©R wewµqvq †Kb ﮋ B_vi e¨envi Kiv nq? 2 N. †Kb? 2
7
N. A †hŠ‡Mi Kvh©Kix gj~ ‡Ki mbv³Kvix cixÿv A I B †hŠ‡Mi cv_©K¨m~PK cixÿv mgxKiYmn eY©bv

3 ivmvqwbK mgxKiYmn wjL| 3 Ki| 3

A I B †hŠM‡K bvB‡Uªkvb Ki‡j cÖwZ¯’vcK GKB C I D †hŠMØq n¨v‡jvdig wewµqv †`Lv‡e wKbv

cÖ‡qvRbxq ivmvqwbK wewµqvmn we‡kølY Ki| 4

Ae¯v’ ‡b hy³ n‡e wKbv we‡kølY Ki| 4

G 2L 1 dm3 0 C
1.36 g 2.21 g
KNO3 `ªeY 750 mm-Hg 150 kPa 1 atm
NbZ½
25 C 25 C 1.25 gL1

A `Ê Mn AB C

`Ê K. †gvjvi `ªeY Kv‡K e‡j? 1
2
0.1 M 0.015 M L. Kve©b g‡bv·vBW‡K bxie NvZK ejv nq †Kb?
Al(NO3)3 Mn(NO3)2

`ªeY `ªeY

K. gLy ¨ wb‡`©kK ZworØvi Kv‡K e‡j? 1 M. 30 C ZvcgvÎvq A I B M¨vm wgkÖ‡Yi †gvU Pvc
N.
L. K‡ivmvb GKwU ivmvqwbK cÖwµqv  e¨vL¨v Ki| 2 8 wbY©q Ki| 3
M. DÏxc‡Ki †KvlwU‡Z Aa©‡Kvl wewµqv I †Kvl
B I C cv‡Îi M¨vmmg~‡ni g‡a¨ †KvbwU AwaK nv‡i

wewµqvwU †jL| 3 e¨vwcZ n‡e  we‡kølY Ki| 4

N. DÏxc‡Ki A¨v‡bv‡Wi `ªeYwU `xN©w`b Zn cv‡Î

msiÿY Kiv hv‡e wKbv  MvwYwZKfv‡e we‡kølY Ki| 4 50 mL 0.5 M 20 mL 0.1 M 40 mL 0.05 M

[EMn/Mn2+ = + 1.18 V, EAl/Al3+ = + 1.66 V Ges Na2CO3 H2SO4 HCl

`ªeY `ªeY `ªeY

EZn/Zn2+ = + 0.76 V] A cvÎ B cvÎ C cvÎ

4  †dwiIqvjv wewfbœ ai‡bi eR©¨ KvMR evmvevwo †_‡K msMÖn K. wb‡`©kK Kv‡K e‡j? 1

K‡i fv½vwii †`vKv‡b wewµ K‡ib| L. ClCH2COOH, CH3COOH A‡cÿv kw³kvjx GwmW
†Kb? 2
K. cøvw÷wmwU Kv‡K e‡j? 1

L. UjyBb cÖ¯‘wZi wewµqv †`LvI| 2 M. A cv‡Îi `ªe‡Yi NbgvÎv 0.01 M G iƒcvšÍi Ki‡Z

M. DÏxc‡Ki `ªe¨wUi cÖ¯‘wZi gj~ bxwZ mgxKiYmn †jL| 3 KZUzKz cvwb †hvM Ki‡Z n‡e? 3

N. DÏxc‡Ki `ªe¨wUi cby tPµvqb cwi‡ekevÜe wKbv  N. A, B I C cv‡Îi `ªeY wgwkÖZ Ki‡j wgkÖ‡Yi cÖKw… Z

we‡kølY Ki| 4 MvwYwZKfv‡e we‡kølY Ki| 4

12 h‡kvi †evW© 2019 welq ˆKvW : 1 7 7

mgq2 NÈv 35 wgwbU imvqb wØZxq cÎ mR„ bkxj cÖkœ c~Y©gvb50

[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi cY~ ©gvb ÁvcK| wb‡Pi DÏxcK¸‡jv co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h‡Kv‡bv cvu PwU cÖ‡kœi DËi `vI|]

1  GKwU we`y¨r Drcv`b †K‡›`ª R¡vjvwb wn‡m‡e 5% mvjdvihy³ M. DÏxcK Abymv‡i ÔKÕ cv‡Îi `ªe‡Yi cwiewZ©Z
N.
Kqjv e¨envi Kiv nq| KviLvbvwU cÖwZ NÈvq 250 kg Kqjv 5 NbgvÎv wbY©q Ki| 3

e¨envi K‡i| we`y¨r Drcv`‡b wb¤œiƒc wewµqv N‡U| †KvlØq `xN© mgq e¨env‡ii †ÿ‡Î †Kv‡bv mgm¨v m„wó

Kqjv + O2  A(g) (ˆiwLK AYy) + B(g) n‡e Kx? MvwYwZKfv‡e we‡kølY Ki| 4
A(g) + KwjPzb  mv`v Aat‡ÿc

K. AvswkK Pvc Kv‡K e‡j? 1

L. f‚Mf©¯’ cvwb‡Z Av‡m©wbK `~lY wKfv‡e N‡U? e¨vL¨v Ki| 2

M. 25C ZvcgvÎvq KviLvbvwU cÖwZw`b KZ NbwgUvi B

†hŠM Drcbœ Ki‡Q? wbY©q Ki| 3

N. A Ges B Dfq †hŠM cwi‡e‡ki Rb¨ ûgwK¯^iƒc K. e¨vc‡bi msÁv `vI| 1

hyw³mn we‡kølY Ki| 4

2 L. HSO4 Avqb Dfag©x  e¨vL¨v Ki| 2

M. GKB mg‡q ÷cKK© Ly‡j w`‡j M¨vmØq KZ `~i‡Z¡ wgwjZ n‡e? 3

N. wgwkÖZ Ae¯v’ q †Kvb M¨vm †ewk Pvc w`‡e?

MvwYwZKfv‡e we‡kølY Ki| 4

A = cvu P Kve©bwewkó †hŠM| 6
K. GbvbwmIgvi Kv‡K e‡j?
1 NaOH(aq)

L. b¨vc_vwjb GKwU A¨v‡ivg¨vwUK †hŠM  e¨vL¨v Ki| 2 350 ºC, 150 atm S
+ HCl
3P Fe Q Cl2 R
M. wewµqvmn A †hŠ‡Mi MVb e¨vL¨v Ki| 3 400 ºC FeCl3
NH3, Cu2O
N. †K›`ªvKlx© ms‡hvRb wewµqvq C I D Gi g‡a¨ T
200 ºC, High pressure
†KvbwU AwaK mwµq? h_vh_ KviYmn we‡kølY Ki| 4
P = `By Kve©bwewkó A¤øxq nvB‡WªvKve©b|
3
K. MøvB‡KvmvBW eÜb Kv‡K e‡j? 1
40 mL †Wwm‡gvjvi
L. B_vBj A¨vwgb A¨v‡gvwbqv A‡cÿv AwaK ÿviKxq 
MOH `ªeY
e¨vL¨v Ki| 2

50 mL 1.26% M. T-†hŠM ÿvixq n‡jI S-†hŠM A¤øxq †Kb? e¨vL¨v Ki| 3
N. bvB‡Uªkb wewµqvq S-†hŠM A‡_©v I c¨viv Drcv` Drcbœ
HNO3 `ªeY
7 Ki‡jI T-ïay †gUv †hŠM Drcbœ K‡i  we‡kølY Ki| 4

K. M-Gi cvigvYweK fi 39.1 1 ÔHÕ wk‡íi `l~ Kmg~n ÔKÕ wk‡íi `~lKmgn~
L.
M. †gvjvwiwU Kv‡K e‡j? Cr4+, Cr3+, Ca2+, SOX, NOx, Hg,
S2, NH4+, NaCl, SiO2, CaCO3
N. †iwmwgK wgkÖY Av‡jvK wbw®µq  e¨vL¨v Ki| 2
H2SO4 ¸ov
4 †jLwP‡Îi mvnv‡h¨ DÏxc‡Ki wewµqvwUi Dch³y

wb‡`©kK wbe©vPb Ki| 3 K. Pvgov U¨vwbs Kv‡K e‡j? 1

DÏxc‡Ki wewµqv wgkÖ‡Y 0.25 g CaCO3 †hvM Ki‡j L. cigvYy I b¨v‡bv KYvi g‡a¨ cv_©K¨ wjL| 2
wgkÖ‡Yi cÖK…wZ Kx n‡e? MvwYwZKfv‡e we‡kølY Ki| 4

M. ÔKÕ wkí Drcv`‡bi gj~ bxwZ mgxKiYmn eY©bv Ki| 3

5000 mA + 0.5 hrs G N. DÏxc‡K ewY©Z `l~ Y cÖwZ‡iv‡a KiYxq Kx? we‡kølY Ki| 4


8  X I Y †Kv¤úvwbi 10 mL wUsPvi Av‡qvwWb `ªe‡Yi

UvB‡Uªk‡bi QK wb¤œiƒc

Graphite M †Kv¤úvwb e¨en„Z Na2S2O3 Gi Na2S2O3 Gi
AvqZb NbgvÎv

MSO4 (cvÎ-K) MSO4 (cvÎ-L) X 15 mL 2.48%

250 mL 150 mL Y 10 mL 2.68%

0.5 M 0.75 M K. wcwcGg Gi msÁv `vI| 1

M Gi cvigvYweK fi = 58.7 L. Sn2+ Avqb RviK I weRviK Dfq wn‡m‡e AvPiY

25 C ZvcgvÎvq K‡i  e¨vL¨v Ki| 2

M2+/M =  0.77 V M. wUsPvi Av‡qvwW‡bi †gŠjwU weRviK wn‡m‡eI AvPiY
M/M2+ = + 0.23 V

M2+/M = + 0.34 V 1 K‡i  e¨vL¨v Ki| 3

K. †Kv‡li e.m.f Gi msÁv `vI| N. †Kvb †Kv¤úvwbi wUsPvi Av‡qvwW‡b Av‡qvwW‡bi

L. †jW †÷v‡iR e¨vUvix A‡cÿv wjw_qvg Avqb e¨vUvix NbgvÎv AwaK? MvwYwZKfv‡e we‡kølY Ki| 4

†ewk myweavRbK †Kb? 2

m„Rbkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  13

13 Kwz gjøv †evW© 2019 welq ˆKvW : 1 7 7

mgq2 NÈv 35 wgwbU imvqb wØZxq cÎ mR„ bkxj cÖkœ cY~ ©gvb50

[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| wb‡Pi DÏxcK¸‡jv co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h‡Kv‡bv cvu PwU cÖ‡kœi DËi `vI|]

1 (i) N2 + O2 eRcª vZ B O2 D(g) M. ÔPÕ wkí Drcv`wUi cÖ¯‘wZ cÖ‡qvRbxq mgxKiYmn
50 C N.
6 eYb© v Ki| 3
(ii) CuS + O2   CuO + E(g)
A-Drcv`‡b (ii) bs cÖwµqv I wimvBwK¬s cÖwµqvi g‡a¨

(iii) CH4 + O2  H2O + Z(g) †KvbwU AwaK cwi‡ek-evÜe we‡kølY Ki| 4


K. Kvh©Kix g~jK Kv‡K e‡j? 1

L. d‡z qj †mj cwi‡ek-evÜe †Kb? 2 E(L2)
D(L2O)
M. 30 C ZvcgvÎvq Z M¨v‡mi eM©gj~ Mo eM©‡eM B(AO2)

(RMS) wbY©q Ki| 3 R Z
PV

N. DÏxc‡Ki (i) I (ii) bs wewµhvq Drcbœ M¨v‡mi g‡a¨

†KvbwU cwi‡e‡ki Rb¨ DcKvix? we‡kølY Ki| 4 OP
2
GLv‡b A I L †gŠ‡ji cÖPwjZ cÖZxK bq Ges G‡`i

cvigvYweK msL¨v h_vµ‡g 6 I 7|

K. mg‡MvÎxq †kÖwYi msÁv `vI| 1

L. KMnO4 RviK c`v_© †Kb? 2

K. weqvi-j¨v¤^vU© mÎ~ wU wjL| 1 M. evq‡y Z L2O M¨vm wbqš¿Y †KŠkj eY©bv Ki| 3

L. A¨vwbwjb ÿviag©x †Kb? e¨vL¨v Ki| 2 N. DÏxc‡Ki RB †iLv RZ †iLvi gZ AvPiY Ki‡Z

M. B †hŠ‡Mi kbv³KiY wewµqvmn eY©bv Ki| 3 cv‡i wK? we‡kølY Ki| 4

N. D I E †hŠ‡Mi g‡a¨ †KvbwU R¨vwgwZK mgvYyZv 7  CnH2n + 2O; GLv‡b n = 4.
K. KvBivj Kve©b Kv‡K e‡j?
cÖ`k©b Ki‡e? Dch³y KviYmn e¨vL¨v Ki| 4 1

3  X  ASO4 `ªeY, A Gi cvigvYweK fi 63.5 L. wMÖMbvW© weKviK cvwbi Abycw¯’wZ‡Z ˆZwi Kiv nq
B  KI `ªeY
†Kb? e¨vL¨v Ki| 2
C  50 mL 0.02 M Na2S2O3 `ªeY
K. HPLC Gi c~Y©iƒc wjL| 1 M. DÏxcK †hŠ‡Mi mgvYymg‡~ ni GKwU mgvYy n‡Z

L. M¨vjfvwbK †Kvl Kq cÖ‡Kvôwewkó †Kvl? e¨vL¨v Ki| 2 wWnvB‡WªvwR‡bkvb cÖwµqvq A¨vjwKb cÖ¯‘wZ

M. DÏxc‡Ki C `ªe‡Yi NbgvÎv ppm GK‡K wbY©q Ki| 3 mgxKiYmn eY©bv Ki| 3

N. A2+ Avq‡bi cwigvY wbY©‡q B `ªe‡Yi cÖ‡qvRb Av‡Q N. DÏxc‡Ki †Kvb mgvYymg~n †gUvgvwiRg †`Lv‡Z

Kx? wewµqvmnKv‡i †hŠw³KZv we‡kølY Ki| 4 mÿg? we‡kølY Ki| 4

4  A : EA/A2+ = + 0.76 V 8  (i) CH3  C  CH + H2O 2%HgSO4 
20% H2SO4 60 C
B : EB/B2+ = + 0.25 V
P cby we©b¨vm B
C : ED/D2+ =  0.34 V
1 A¯’vqx
K. cigkb~ ¨ ZvcgvÎv Kv‡K e‡j?

L. †cÖvcv‡bv‡bi U‡UvgvwiZv e¨vL¨v Ki| 2 (ii) CnH2n2 + H2O 2%HgSO4  N
20% H2SO4 60 C
M. A I C Gi mgš^‡q MwVZ †KvlwUi MVb wewµqvmn A¯’vqx

eYb© v Ki| 3 cby we©b¨vm B

N. A avZzi cv‡Î B2+ `ªeYwU msiÿY Kiv hv‡e Kx? (iii) 3CnH2n  2 45F0eC M ; [GLv‡b n = 2]
K. wimvBwK¬s Kv‡K e‡j?
MvwYZKfv‡e we‡kølY Ki| 4

5  (i) ÔPÕ wk‡íi Kvu Pvgvjmgn~ : ÿviK RvZxq Dcv`vb 1

(Calcarious), A¤ø RvZxq Dcv`vb (Argillaceous) Ges L. Zxeª GwmW - Zxeª ÿvi‡Ki UvB‡Uªk‡b †Kvb wb‡`©kK

CaSO4.2H2O e¨envi Kiv nq? e¨vL¨v Ki| 2

(ii) evu k, KvV  A M. M †hŠM n‡Z wU.Gb.wU cÖ¯‘wZ mgxKiYmn eY©bv Ki| 3

K. MÖvnv‡gi e¨vcb m~ÎwU wjL| 1 N. A I B Gi g‡a¨ †KvbwU †K›`ªvKlx© weKvi‡Ki cÖwZ

L. KvP ˆZwi‡Z ÔA¨vwbwjsÕ Gi cÖ‡qvRbxqZv wK? e¨vL¨v

Ki| 2 AwaK mwµq? we‡kølY Ki| 4

14 PÆMÖvg †evW© 2019 welq ˆKvW : 1 7 7

mgq2 NÈv 35 wgwbU imvqb wØZxq cÎ mR„ bkxj cÖkœ cY~ ©gvb50

[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| wb‡Pi DÏxcK¸‡jv co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h‡Kv‡bv cvu PwU cÖ‡kœi DËi `vI|]

1 CaC2 H2O  M (M¨vm) 4F5e0bjC  N Abv`ª© AlCl3 L. 5

K. †iwmwgK wgkÖY Kv‡K e‡j? CH3Cl 1

L. †cÖvwcb I weDwUb ci¯úi mg‡MvÎK †Kb? 2

M. ÔMÕ †hŠMwUi A¤øawg©Zvi KviY e¨vL¨v Ki| 3 [ÔCÕ U‡jb weKvi‡Ki mv‡_ Aat‡ÿc m„wó K‡i bv]
N.
bvB‡Uªkb wewµqvq ÔNÕ I ÔLÕ Gi †KvbwU AwaK K. cøvw÷wmwU Kv‡K e‡j? 1
2
mwµq? we‡kølY Ki| 4 L. wdbvBj A¨vwgb A‡cÿv wg_vBj A¨vwgb Zxeª ÿvi

†Kb? e¨vL¨v Ki| 2

A (MÖxb nvDm Gi cÖavb M¨vm) M. ÔBÕ †hŠ‡Mi †÷wiI mgvYZy v e¨vL¨v Ki| 3
B (me‡P‡q nvjKv M¨vm)
26 Z>1 N. ÔCÕ, ÔDÕ I ÔEÕ Gi wbDwK¬IwdwjK ms‡hvRb
22.386 Av`k© M¨vm
PV  wewµqvq mwµqZvi KviY we‡kølYc~e©K µg wba©viY
18
Ki| 4

6

2.5 atm P  A

[0 C ZvcgvÎvq cÖwZ †gvj M¨v‡mi †ÿ‡Î PV ebvg P †jL|]

K. jyKvm weKviK Kx? 1

L. mvaviY ZvcgvÎv H2 M¨v‡m Rjy -_gmb m¤úÖmvi‡Y wK A A2+ B
0.1 M B2+
cwieZ©b nq? e¨vL¨v Ki| 2 0.2 M

M. DÏxc‡Ki ÔAÕ M¨vmwUi rms †eM wbY©q Ki| 3 [ÔAÕ Ges ÔBÕ Gi cvigvYweK msL¨v h_vµ‡g 12 I 24 Ges
N.
DÏxcK g‡Z, Av`k© M¨v‡mi AvPiY †_‡K ÔAÕ I ÔBÕ EA/A2+ = + 2.36 V I EB/B3+ = + 0.74 V]
3 K. cÖgvY ZworØvi wefe Kx?
M¨v‡mi weP¨z wZi cÖKw… Z MvwYwZKfv‡e we‡kølY Ki| 4 1

L. ZvcgvÎv ew„ ׇZ B‡jKUªbxq cwievnxi ZworcÖevn

wØÿvixq A¤ø GK A¤øxq ÿvi HNO3 n«vm cvq †Kb? 2
0.2 M
0.2 M 0.3 M 50 mL M. DÏxcK †m‡ji Zwo”PvjK ej wbY©q Ki| 3
200 mL 300 mL
N. B3+ Avq‡bi `ªeY `¯Ívi cv‡Î msiÿY Kiv hv‡e wKbv

K-cvÎ L-cvÎ M-cvÎ  MvwYwZKfv‡e we‡kølY Ki| 4

K. AmvgÄm¨ wewµqv Kv‡K e‡j? 1 7 AwZwi³ KI
2
L. †gvjvi `ªeY ZvcgvÎv wbf©ikxj  e¨vL¨v Ki|

M. M-cv‡Îi `ªe‡Yi NbgvÎv ppm GK‡K wbY©q Ki| 3

N. M-cv‡Îi `ªeY Øviv (K + L) cv‡Îi wgkÖ `ªe‡Yi 5 gm Zz‡u Z 0.2 M A¤øxq

cÖkgb m¤¢e wKbv  we‡kølY Ki| 4 100 mL Na2S2O3 K2Cr2O7

`ªeY `ªeY 50 mL `ªeY

4 A-cvÎ B-cvÎ C-cvÎ

K. †m‡KÛvwi Zwor †Kvl Kv‡K e‡j? 1

L. H2O2 RviK I weRviK Dfq wn‡m‡e wµqv K‡i
†Kb? 2

LPG [LPG (C4H10) M¨vm wdwjs M. C-cv‡Î H2S Pvjbv Ki‡j msNwUZ RviY-weRviY
†÷kb †_‡K 100 atm wewµqv Aa-© wewµqvi mvnv‡h¨ mgZv weavb Ki| 3
wmwjÛvi Pv‡c 25 C ZvcgvÎvq wmwjÛv‡i
m‡e©v”P Pvc mn¨ M¨vm fwZ© Kiv nq|] N. A-cv‡Îi `ªe‡Yi A‡a©K AvqZb, m¤ú~Y© B-cv‡Îi
ÿgZv 116 atm
`ªe‡Yi mv‡_ wewµqv Ki‡j Zzu‡Zi bgby vwUi weï× wK
kb~ ¨ Ae¯’vq
bv  MvwYwZKfv‡e we‡kølY Ki| 4
W = 16 kg
8  evsjv‡`‡ki cïm¤ú‡`i Dci wfwË K‡i GKwU wk‡íi
V = 120 L
e¨vcK cÖmvi N‡U‡Q| Aciw`‡K AeKvVv‡gvMZ Dbœqb
K. msKU ZvcvÎvi msÁv `vI| 1
`ªæZZi nIqvq wm‡g›U wk‡íiI cÖmvi N‡U‡Q|
L. O3 ¯Íi UV iwk¥ †_‡K Avgv‡`i‡K wKfv‡e iÿv
K. b¨v‡bv cvwU©K¨vj Kv‡K e‡j? 1
K‡i? e¨vL¨v Ki| 2
L. KvMR wimvBwK¬s cwi‡ek msiÿ‡Y f‚wgKv iv‡L 
M. DÏxcK g‡Z, M¨vm fwZ© Ae¯’vq wmwjÛv‡ii fi wbY©q
e¨vL¨v Ki| 2
Ki| 3
M. DÏxc‡Ki wØZxq wkícY¨ Drcv`‡bi gj~ bxwZ eYb© v
N. M¨vm fwZ© wmwjÛvi iwÿZ K‡ÿi ZvcgvÎv 85 C
Ki| 3
n‡q †M‡j wmwjÛviwU we‡ùvwiZ n‡e wKbv 
N. DÏxc‡Ki cÖ_g wk‡íi cÖmv‡i cwi‡ek `l~ Y‡iv‡a

MvwYwZKfv‡e we‡kølY Ki| 4 †Zvgvi gZvgZ we‡kølY Ki| 4

m„Rbkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  15

15 wm‡jU †evW© 2019 welq ˆKvW : 1 7 7

mgq2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ cY~ ©gvb50

[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi cY~ ©gvb ÁvcK| wb‡Pi DÏxcK¸‡jv co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h‡Kv‡bv cuvPwU cÖ‡kœi DËi `vI|]

1 CH3  COOH PCl5 ÔXÕ Pd ÔAÕ + HCl K. wb‡`©kK Kv‡K e‡j? 1
BaSO4
L. Pvgov‡K U¨vwbs Kiv nq †Kb? 2
COOH PCl5 ÔYÕ Pd ÔBÕ + HCl
M. Kb‡UBbvi-1 Gi M¨vmwUi MwZkw³ wbY©q Ki| 3
BaSO4

K. Zwo”PvjK ej Kx? 1 N. Kb‡UBbvi-2 Gi M¨v‡mi ZvcgvÎv KZ cwieZ©b

L. FeCl3 †K jBy m A¤ø ejv nq †Kb? 2 Ki‡j DÏxcK M¨vm؇qi RMS †eM mgvb n‡e?

M. B_vBb n‡Z wKfv‡e ÔA’ cÖ¯‘Z Ki‡e? mgxKiYmn wjL| 3 MvwYwZK hyw³mn we‡kølY Ki| 4

N. A I B Gi g‡a¨ †KvbwU A¨vjWj Nbxfeb wewµqv 6  (i) CH3  CH2  OH K2Cr2OA7vs+wkHK2SROvi4Y(conc.) ÔPÕ + H2O

†`q? we‡kølY Ki| 4

2  Kvu Pvgvj wkí (ii) CH3  CH  CH3 K2Cr2OA7vs+wkHK2SROvi4Y(conc.) ÔQÕ + H2O
|
(i) K¨vj‡Kwiqvm Ges Avi‡Rwjwmqvm ÔPÕ

c`v_© OH

(ii) cwjBw_wjb †Uwid¨v‡jU ÔQÕ (iii) CH3  CH2  OH + H2SO4 (AwZwi³)   ÔRÕ

K. wbDwK¬IdvBj Kv‡K e‡j? 1 + [H2SO4 + H2O]

L. bgby vq BOD A‡cÿv COD Gi gvb †ewk nq †Kb? 2 K. RviY msL¨v Kv‡K e‡j? 1

M. ‘P’ Drcv`‡bi g~jbxwZ mgxKiYmn wjL| 3 L. †Wwb‡qj †m‡j ÔZnÕ weRviK wn‡m‡e KvR K‡i †Kb? 2

N. Ò ‘Q’ mvgwMÖi wimvBwK¬s cwi‡ek msiÿ‡Y Ley B M. ÔPÕ †hŠM‡K wKfv‡e CH4 G iƒcvšÍi Ki‡e?

¸iæZ¡cY~ ©Ó  we‡kølY Ki| 4 mgxKiYmn wjL| 3

3 N. ÔQÕ I ÔRÕ †hŠ‡Mi g‡a¨ †KvbwU †K›`vª Kl©x ms‡hvRb

Na2CO3 X wewµqv †`q? we‡kølY Ki| 4
5.3 g 10 g
0.1 M 7  (i) Al(s)/Al3+(aq) || X2+/X(s)
250 mL
(ii) Al(s)/Al3+(aq) || Y2+(aq)/Y(s)
weKvi-1 weKvi-2

‘X’ + NH3  mv`v †avu qv EX/X2+ = + 0.14 V, EAl/Al3+ = + 1.66 V;
K. ¯’vqx LiZv Kv‡K e‡j?
1 K. A¨vwbwjs Kx? EY/Y2+ = + 0.25 V

L. A¨vwj‡dwUK 1 A¨vwgb ÿviK †Kb? e¨vL¨v Ki| 2 1

M. weKvi-1 Gi `ªe‡Yi NbgvÎv ppm GK‡K wbY©q Ki| 3 L. †ccUvBW eÜb wKfv‡e MwVZ nq? e¨vL¨v Ki| 2

N. weKvi-2 Gi `ªe‡Yi g‡a¨ weKvi-1 Gi `ªeY wgkv‡j M. (i) bs DÏxc‡Ki A¨v‡bv‡Wi Zwor we‡kø‡l¨i ga¨w`‡q

wgkÖ‡Yi cÖKw… Z pH †¯‹‡ji gva¨‡g e¨vL¨v Ki| 4 0.2 A we`y¨r 25 wgwbU hver Pvjbv Ki‡j wK cwigvY
4
avZz Rgv n‡e? 3

N. (i) bs I (ii) bs †Kv‡li g‡a¨ †KvbwU †_‡K AwaK

Zworkw³ cvIqv hv‡e? 4

8

30 C 30 C

K. cig kb~ ¨ ZvcgvÎvi msÁv `vI| 1 350 mm(Hg) 450 mm(Hg)

L. Zwor ivmvqwbK †Kv‡l jeY †mZz e¨envi Kiv nq †Kb? 2 550 mL 425 mL

M. ÔBÕ n‡Z ÔAÕ †hŠM ˆZwi mgxKiYmn eY©bv Ki| 3 0.450 g 0.325 g

N. ÔXÕ I ÔCÕ †hŠ‡Mi g‡a¨ B‡jKUªbvKl©x cÖwZ¯’vcb A-M¨vm B-M¨vm

wewµqvq †KvbwU AwaK mwµq? we‡kølY Ki| 4 K. Abiy Yb Kx? 1

5 L. †gvjvi `ªeY ZvcgvÎvi Dci wbf©ikxj wK bv? e¨vL¨v

Cl2 'A' M¨vm Ki| 2
10 g
20 C 15 C M. ÷cKK© †Lvjv Ae¯’vq 40 C ZvcgvÎvq M¨vm

wgkÖ‡Yi †gvU Pvc wbY©q Ki| 3

Kb‡UBbvi-1 Kb‡UBbvi-2 N. ÔAÕ I ÔBÕ M¨v‡mi g‡a¨ †KvbwU Av`k© M¨vm AvPiY

[A M¨vmwU Pbz vcv_‡ii we‡hvR‡bi gva¨‡g cvIqv hvq] n‡Z weP¨z wZ †ewk †`Lv‡e? we‡kølY Ki| 4

16 ewikvj †evW© 2019 welq ˆKvW : 1 7 7

mgq2 NÈv 35 wgwbU imvqb wØZxq cÎ mR„ bkxj cÖkœ cY~ ©gvb50

[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| wb‡Pi DÏxcK¸‡jv co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h‡Kv‡bv cuvPwU cÖ‡kœi DËi `vI|]

1  STP †Z `wy U †gŠwjK M¨vm A I B Gi †gvjvi AvqZb 5 

wb¤œiƒc 50 mL A¤øxq 0.03 M

M¨vm AvYweK fi †gvjvi AvqZb 0.04 M FeSO4 KMnO4

A 40 22.4 wjt K2Cr2O7 `ªeY `ªeY `ªeY

B 71 22.2 wjt A

K. b¨v‡bv cvwU©K¨vj Kx? 1 K. g³y g~jK Kx? 1

L. NaOH †K cÖvBgvwi ÷¨vÛvW© c`v_© ejv nq bv †Kb? 2 L. Zwor †Kv‡l jeY †mZiz f‚wgKv wK? 2

M. STP †Z A M¨v‡mi RMS †eM wbY©q Ki| 3 M. A Gi mv‡_ DÏxc‡Ki weRviK c`v_©wUi wewµqv

N. A I B M¨v‡mi AvYweK fi wfbœ n‡jI †gvjvi Avqb B‡jKUªb c×wZ‡Z mgZvKiY Ki| 3

AvqZb GKB nIqvi KviY we‡kølY Ki| 4 N. DÏxc‡Ki weRviK c`v_©wU‡K RvwiZ Ki‡Z KMnO4
Gi KZ AvqZb cÖ‡qvRb? MvwYwZKfv‡e we‡kølY
2  wb‡¤œi wewµqv `ywU jÿ¨ Ki :

Ki| 4

6

5% H2SO4 0.1 M

`ªeY NaOH `ªeY

250 mL 250 mL

K. COD Kv‡K e‡j? 1 A-cvÎ B-cvÎ
L. nv‡Kj bxwZ ej‡Z wK eyS? 2
K. †mwg †gvjvi `ªeY Kv‡K e‡j? 1
M. †Kvb gZev` Abmy v‡i DÏxc‡Ki wewµqv `ywU‡K A¤-ø
L. ÷vP© I †mj‡y jv‡Ri g‡a¨ cv_©K¨ wjL| 2
ÿviK wewµqviƒ‡c wPwýZ Kiv hvq? e¨vL¨v Ki| 3
M. DÏxc‡Ki A cv‡Îi `ªe‡Yi NbgvÎv ppm GK‡K
N. cwi‡e‡ki Dci DÏxc‡Ki M¨vm `wy Ui weiƒc cÖfve
wbY©q Ki| 3
m¤ú‡K© Zzjbvgj~ K we‡kølY Ki| 4
N. DÏxc‡Ki A I B cv‡Îi `ªeY GK‡Î wgwkÖZ Ki‡j
3  GKwU ˆRe wewµqv wb¤œiƒc
wgkÖ‡Yi pH KZ n‡e? 4
CH3 CH3
|| 7  wb‡¤œi †KvlwUi †Kvl wefe + 0.42 V|

C2H5  C = CHCl + HCl  C2H5  C  CH2Cl Pt, H2(g) (1 atm, 25 C)/H2SO4(aq) || CuSO4 (aq)/Cu(0.1 M)
(A) |
Cl K. dz‡qj †mj Kx? 1

(B) 1 L.  NO2 g~jK‡K †gUv wb‡`©kK gj~ K ejv nq †Kb? 2

K. bvB‡Uªv‡Rb wd‡·kb Kv‡K e‡j? M. DÏxc‡Ki †KvlwUi mvnv‡h¨ 0.2 A gvÎvi we`¨y r 2

L. cÖgvY nvB‡Wªv‡Rb ZworØvi GKwU cÖvBgvwi wb‡`©kK wgwbU hver Pvjbv Ki‡j Kx cwigvY Cu mwÂZ n‡e? 3

ZworØvi  e¨vL¨v Ki| 2 N. DÏxc‡Ki Z‡_¨i wfwˇZ H2SO4 `ªe‡Yi NbgvÎv

M. DÏxc‡Ki wewµqvwU †h bxwZi gva¨‡g msNwUZ n‡q‡Q wbY©q m¤¢e wK? MvwYwZKfv‡e we‡kølY Ki| 4

Zv e¨vL¨v Ki| 3 8  wb‡¤œi wPÎwU jÿ Ki

N. ÒA I B Df‡qB †÷wiI mgvYyZv †`Lv‡jI D³

mgvYZy vi g‡a¨ cv_©K¨ we`¨gvbÓ  Dw³wU g~j¨vqb
Ki| 4

4  wb‡¤œi wewµqvwU‡K DBwjqvgmb wewµqv ejv nq|

(i) ROH + Na  RONa + H2
(A)

RONa + CH3CH2Cl  CH3CH2CH2OCH2CH3 + NaCl K. d¨viv‡Wi cÖ_g m~Î wjL| 1
(B) (C)

(ii) CH3CH2Cl + KOH(aq)  D + KCl 1 L. Kv‡P A¨vwbwjs Kiv nq †Kb? 2

K. wK¬sKvi Kx? M. DÏxc‡Ki A-wkí KviLvbvi Drcv`b cÖwµqvi

L. ZvcgvÎv ew„ × Ki‡j M¨v‡mi Pvc ew„ × cvq †Kb? 2 gj~ bxwZ wjL| 3

M. A I C Gi g‡a¨ wKfv‡e cv_©K¨ Ki‡e? mgxKiYmn N. DÏxc‡Ki †Kvb wkí KviLvbvi Rb¨ ETP Acwinvh©?

e¨vL¨v Ki| 3

N. D ˆZwii wewµqv †KŠkj e¨vL¨v Ki| 4 e¨vL¨v Ki| 4

mR„ bkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  17

17 w`bvRcyi †evW© 2019 welq ˆKvW : 1 7 7

mgq2 NÈv 35 wgwbU imvqb wØZxq cÎ mR„ bkxj cÖkœ c~Y©gvb50

[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi cY~ ©gvb ÁvcK| wb‡Pi DÏxcK¸‡jv co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h‡Kv‡bv cuvPwU cÖ‡kœi DËi `vI|]

1 5

 PV (L atm) Y (gas) X-M¨vm Y-M¨vm (X + Y)
X (gas)
10.0 dm3 1.0 dm3 M¨v‡mi wgkÖY

27 C 27 C 2.0 dm3
50 kPa 200 kPa
8.8 g 35 C
2.4 g

cvÎ-1 cvÎ-2 cvÎ-3

[X I Y-M¨vm ci¯úi wewµqvnxb|]

P(atm)  K. b¨v‡bv cvwU©K¨vj Kv‡K e‡j? 1
L.
Y M¨vmwU Pzbvcv_‡ii we‡qvR‡b Drcbœ nq| M. wk‡í ETP e¨envi Kiv nq †Kb? 2
N.
K. COD Kv‡K e‡j? 1 DÏxc‡Ki 3bs cv‡Î †gvU Pvc wbY©q Ki| 3
6
L. FeCl3 jyBm GwmW †Kb? e¨vL¨v Ki| 2 X-M¨vm Ges Y-M¨v‡mi g‡a¨ †KvbwU‡K mn‡R Zij

M. 27 C ZvcgvÎvq DÏxc‡Ki Y M¨vmwUi RMS †eM Kiv hv‡e? MvwYwZKfv‡e we‡kølY Ki| 4

wbY©q Ki| 3

N. DÏxc‡Ki X I Y M¨vm؇qi g‡a¨ GKwU M¨vm Av`k©

AvPiY bv Kivi KviY mgxKiYmn we‡kølY Ki| 4

2  A cZvZnb B bvBGUÇkb C Sn+Mvp HCl D wØ-ÿviKxq 0.1 M A+B 0.04 M MOH
A¤ø
  150 mL `ªeY 600 mL
60 C
`eª Y `ªeY
ÔBÕ B_vB‡bi UªvBgvi|

K. GbvbwmIgvi Kv‡K e‡j? 1 cvÎ-A cvÎ-C cvÎ-B

L. wdDivb A¨v‡iv‡gwUK †hŠM †Kb? 2 K. M-Gi cvigvYweK fi = 39 1
L.
M. DÏxc‡Ki A †hŠM n‡Z R¡i I e¨_vbvkK GKwU Jla M. -MøvB‡KvmvBW eÜb Kv‡K e‡j?
N.
cÖ¯‘wZ mgxKiYmn wjL| 3 wm‡g›U RgvU euvavq wRcmv‡gi fw‚ gKv e¨vL¨v Ki| 2
7
N. DÏxc‡Ki C Ges D †hŠ‡Mi g‡a¨ †KvbwU B-cv‡Îi `ªe‡Yi NbgvÎv ppm GK‡K wbY©q Ki| 3

B‡jKUªbvKl©x cÖwZ¯’vcb wewµqvq AwaK mwµq? cvÎ-A I cvÎ-B Gi `ªeY cvÎ-C G wgwkÖZ Ki‡j

AbyiYbmn we‡kølY Ki| 4 wgwkÖZ `ªeYwU †Kvb e‡Y©i wjUgvm †ccv‡ii eY©

3 cwieZ©b Ki‡e? we‡kølY Ki| 4

X Y 22 mL 0.75 g K2Cr2O7
(Metal) (Metal)
†Wwm‡gvjvi Fe bgby v `ªeY

XSO4 YSO4 KMnO4 +

`ªeY jNy H2SO4

`ªeY

cvÎ-A cvÎ-B cvÎ-C

ED2+/D =  1.65 V K. †ccUvBW eÜb Kv‡K e‡j? 1
EX/X2+ = 0.79 V; EY2+/Y =  0.41 V L.
wg_vBj A¨vwgb A¨vwbwj‡bi †P‡q †ewk ÿvixq 
K. Kve©vbvqb Kv‡K e‡j? M.
1 e¨vL¨v Ki| 2
N.
L. C3H6O U‡UvgvwiRg cÖ`k©b K‡i  e¨vL¨v Ki| 2 8 cvÎ-B Ges cvÎ-C Gi `ªe‡Yi wgkÖ‡Y msNwUZ
wewµqvwU Avqb-B‡jKUªb c×wZ‡Z mgZv weavb Ki| 3
M. DÏxc‡Ki †KvlwUi †Kvl wewµqv D‡jøLc~eK© e.m.f
DÏxc‡Ki bgby v Fe Gi weï×Zv MvwYwZKfv‡e hvPvB Ki| 4
wbY©q Ki| 3

N. DÏxc‡Ki A¨v‡bv‡Wi `ªeY‡K D-Gi cv‡Î msiÿY

Kiv hv‡e wKbv  MvwYwZKfv‡e we‡kølY Ki| 4 U¨vbvix Av‡m©wbK AvKwiKh³y gvwU
†Wªb
4 D g`„ y RviY C RjxqKOH RI alc.KCN A



HH2+O  B

ÔRÕ `yB Kve©bwewkó A¨vjKvBj g~jK| K. cigk~b¨ ZvcgvÎv Kv‡K e‡j? 1

K. jKy vm weKviK Kv‡K e‡j? 1 L. Zwor ivmvqwbK †Kv‡l jeY †mZz e¨envi Kiv nq †Kb? 2

L. Kv‡P A¨vwbwjs Kivi cÖ‡qvRb †Kb? 2 M. DÏxc‡Ki wkí Kvu PvgvjwUi cÖwµqvRvZKi‡Yi

M. wMÖMbvW© weKviK n‡Z B †hŠMwUi ms‡kølY †`LvI| 3 Na2Cr2O7 Gi fw‚ gKv mgxKiYmn wjL| 3

N. DÏxc‡Ki D †hŠMwU A¨vjWj Nbxfeb bvwK N. DÏxc‡Ki †Kvb Drm †_‡K AwaK cwigvY b`x `l~ Y

K¨vwbRv‡iv wewµqv cÖ`k©b Ki‡e we‡kølY Ki| 4 NU‡e? we‡kølY Ki| 4

K †mU 18 mKj †evW© 2018 welq ˆKvW : 1 7 7

mgq2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Y©gvb50

[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| wb‡Pi DÏxcK¸‡jv co Ges mswkøó cÖkœ¸‡jvi DËi `vI| †h‡Kv‡bv cuvPwU cÖ‡kœi DËi `vI|]

1 NaOH(CaO) 'X'  5
CH3COONa  H2

110 L 200 L

N2 'Y' i. CO2 'Z' M¨vm wmwjÛvi-1 M¨vm wmwjÛvi-2
ii. 
[wmwjÛvi-1 27C ZvcgvÎvq 200 atm Ges wmwjÛvi -2 37C
K. r.m.s †eM Kx? 1
ZvcgvÎvq 50 atm Pvc mn¨ Ki‡Z cv‡i]
L. †ebwRb GKwU A¨v‡iv‡gwUK †hŠM e¨vL¨v Ki| 2
K. d¨viv‡Wi Zwor we‡køl‡Yi cÖ_g mÎ~ wU wjL| 1
M. 'Z' Gi wk‡ívrcv`‡bi gj~ bxwZ mgxKiYmn wjL| 3
L. Ò†mwg‡gvjvi `ªeY GKwU cÖgvY `ªeYÓe¨vL¨v Ki| 2
N. 'Z' †hŠMwU AwaK gvÎvq e¨env‡i cwi‡e‡ki Dci
M. DÏxc‡K DwjøwLZ ZvcgvÎv I Pv‡c wmwjÛvi-1 KZ MÖvg
†Kv‡bv cÖfve co‡e wK? Dˇii ¯^c‡ÿ hwy ³ `vI| 4
CH4 M¨vm aviY Ki‡Z cvi‡e Zv wn‡me Ki| 3

2  (i) EA2+/(aq)/A(s) = + 0.20 volt N. M¨vm cwien‡bi Rb¨ †Kvb wmwjÛviwU AwaKZi

(ii) EB2+(aq)/B(s) =  0.62 volt Dc‡hvMx? MvwYwZK hyw³mn we‡kølY Ki| 4

(iii) EX2+(aq)/X(s) =  0.80 volt 6

K. KvBivj Kve©b Kx? 1 UvB‡Uªkb GwmW ÿvi wb‡`©kK eY© cwieZ©‡bi
bs pH cwimi
L. KMnO4 †K †m‡KÛvwi ÷¨vÛvW© c`v_© ejv nq †Kb? 2

M. DÏxc‡Ki (i) Ges (ii) bs Aa©‡Kvl Øviv mó„ †Kv‡li 1A B P 3.0  6.5
N. Q 6.6  9.2
3 Zwo”PvjK ej wbY©q Ki| 3 (Zxeª) (g`„ y)
R 8.3  10.0
B2+ Gi `ªeY, 'A' Ges 'X' avZz wbwg©Z †Kvb cv‡Î 2X Y

msiÿY Kiv hv‡e? MvwYwZK hyw³ `vI| 4 (g„`y) (wØA¤øxq Zxeª

ÿvi)

†jvnvi UKz iv K. Kv‡e©vK¨vUvqb Kv‡K e‡j? 1
2
H2SO4 2 gm L. A¨vjKvBb-1 A¤øagx© e¨vL¨v Ki| 3

M. Y-Gi NbgvÎv 0.05 M n‡j Gi pH wn‡me Ki|

30 mL H2SO4 50 mL N. 1bs UvB‡Uªk‡b DÏxc‡Ki †Kvb wb‡`©kKwU Dch³y ?
KMnO4 0.1 M
(jNy) Dˇii mc‡ÿ hwy ³ `vI| 4
`ªeY A-cvÎ K2`CªerY2O7
7  (i) (CH3)3CX + jNy ÿvi (aq)  'A'
B-cvÎ C-cvÎ (ii) CH3CH2X + Zxeª ÿvi (aq)  'B'
K. U‡UvgvwiZv Kx?
[C cv‡Îi `ªeY Øviv A cv‡Îi `ªeY‡K m¤ú~Y©iƒ‡c RvwiZ Kiv hvq|]

K. AbyeÜx A¤ø Kx? 1 1

L. wk‡í ETP e¨envi Kiv nq †Kb? 2 L. Kÿ ZvcgvÎvq H2 M¨v‡mi Dci Ryj-_gmb cÖfve

M. B cv‡Îi `ªe‡Y H2S Pvjbv Ki‡j msNwUZ RviY-weRviY Kvh©Ki bq †Kb? 2
wewµqv Avqb-B‡jKUªb c×wZ‡Z mgZv weavb Ki| 3
M. 'A' I 'B' †hŠ‡Mi cv_©K¨m~PK cixÿv wewµqvmn wjL| 3
N. A cv‡Î †hvMKZ… †jvnv weï× wKbv MvwYwZKfv‡e we‡kølY Ki| 4
N. DÏxc‡Ki wewµqv؇qi wewµqv †KŠkj Awfbœ wKbv we‡kølY Ki|

4

4  8  (i)

['X' U‡jb weKvi‡Ki mv‡_ mv`v Aat‡ÿc m„wó K‡i wKš‘ 'Y' (ii) XH3 + GK ÿvixq GwmW  jeY
wewµqv K‡i bv|] [X I Y Gi cvigvYweK msL¨v h_vµ‡g 5 Ges 7]
K. c¨vivwmUvg‡ji MvVwbK ms‡KZ wjL|
K. weqvi-j¨v¤^v‡U©i m~ÎwU wjL| 1 1

L. Zwor we‡kølY GKwU wiW· wewµqv e¨vL¨v Ki| 2 L. A¨vj‡Kvnj cvwb‡Z `ªeYxq e¨vL¨v Ki| 2

M. †K›`ªvKlx© hZy & wewµqvq 'X' A‡cÿv 'M' Kg mwµq e¨vL¨v Ki| M. KZ `~i‡Z¡ M¨vm `y‡Uv ci¯úi wgwjZ n‡e? MvwYwZKfv‡e hwy ³ `vI|3
3
N. DÏxc‡Ki †hŠMØq‡K †Kvb gZev‡`i Av‡jv‡K GwmW I

N. A Ges B Gi R¨vwgwZK mgvYyZv cÖ`k©‡bi m¤¢ve¨Zv we‡kølY Ki| 4 ÿvi wn‡m‡e wPwýZ Kiv hvq? we‡kølY Ki| 4

K¨v‡WU K‡j‡Ri wbe©vPwb cix¶vi
cÖkcœ Î I DËigvjv : eûwbe©vPwb

19 wSbvB`n K¨v‡WU K‡jR, wSbvB`n welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. wb‡Pi †KvbwU jyBm GwmW? 8. DÏxc‡Ki †Kv‡li Ecell Gi gvb 17. †gvjvi A¨veRwe©wU () Gi GKK wK?

K NH3 L FeCl3 KZ? K mol/L/cm L L/mol/cm
M H2CO3 N NH4+ M mol/L/m N L/mol/m
2. wb‡Pi †KvbwU cÖvBgvwi wb‡`©kK Zwor K 1.091 V L 1.019V 18. wMÖb nvDm cÖfv‡ei Rb¨ AwaKZi `vqx

Øvi? M 1.049 V N 1.011V M¨vm †KvbwU?

K M¨vm Zwo`Ø& vi 9. †ebwR‡b Kve©b-Kve©b eÜb ˆ`N©¨ KZ? K CH4 L N2O

L K¨v‡jv‡gj Zwo`Ø& vi K 1.33Å L 1.35Å M CO2 N CFC
N 1.39Å
M H2 Zwo`Ø& vi N MÖvdvBU M 1.37Å MÖæc 19. wb‡Pi †jLwPÎwU †Kvb mÎ~ ‡K mg_©b
wbw®µqKvix
10. †ebwRb ejq K‡i?

3. Zn Ges Ag Gi RviY wefe h_vµ‡g †KvbwU?

+0.76V I  0.80V| Zn/Zn2+/Ag+/Ag K  Cl L  NO2 T = aeË‚ K
†Kv‡li emf KZ? M  NH2 N  OH
Self test
K  1.56 V L  0.04 V 11. wb‡Pi †KvbwU wfbvBj g~jK?
Pvc M + 0.04VN + 1.56 V
4. wb‡Pi †Kvb †ÿ‡Î weRviY m¤¢e? K  CNS L  SH AvqZb 
K e‡q‡ji m~Î L A¨v‡fv‡M‡Wªv
i. Mg, Zn2+ Avqb‡K weRvwiZ  M CH2 = CH N CH3  CH2 mÎ~

Ki‡Z cv‡i DÏxcKwU c‡o 12 I 13 bs cÖ‡kœi M Pvj©m mÎ~ N e¨vcb m~Î
20. Li cvwb‡Z wb‡Pi †KvbwU Dcw¯’Z
ii. Zn, Fe2+ Avqb‡K weRvwiZ Ki‡Z DËi `vI :

KOH(aq)
cv‡i Y _v‡K?

iii. Fe, Cu2+ Avqb‡K weRvwiZ Ki‡Z C4H9X K N2 L F
M Be2+ N Mg2+
cv‡i KOH (alco) Z
21. CFC M¨vm
wb‡Pi †KvbwU mwVK? 12. Z Drcbœ nevi wewµqvi bvg wK?
K AcmviY L hZy i. welv³
K i I ii L ii I iii M cÖwZ¯’vcb N mgvYyKiY
ii. A`vn¨
M i I iii N i, ii I iii 13. Y †hŠMwU
iii. mwy ¯’Z
5. K¨v‡_v‡W 1 †gvj Cu mwÂZ Ki‡Z wK
wb‡Pi †KvbwU mwVK?
cwigvY we`y¨r cÖ‡qvRb?
i. Na Gi mv‡_ wewµqv K‡i K i I ii L ii I iii
K 1F L 2F
ii. G÷vi MVb K‡i M i I iii N i, ii I iii
M 2.5 F N 3F
6. NaCl Gi Zwor we‡køl‡Y H+ Gi iii. †eªvwgb `ªeY‡K eY©nxb K‡i 22. 16 g O2 M¨v‡mi MwZkw³ STP †Z

cwie‡Z© Na+ †K gy³ Ki‡Z †Kvb wb‡Pi †KvbwU mwVK? KZ?

Zwo`Ø& vi e¨enZ„ nq? K i I ii L ii I iii K 84.46 J L 485.97 J
M 1702.29 J N 1870.65 J
K Hg L Pt M i I iii N i, ii I iii 23. 10% Na2CO3 `ªe‡Y KZ †gvj `ªe
N Ag `ªexfZ‚ Av‡Q?
M MÖvdvBU 14. DU©R wewµqvi cÖavb Drcv` †KvbwU?

 DÏxcKwU c‡o 7 I 8 bs cÖ‡kœi DËi K CH4 L CH3  CH3 K 1.06 L 0.09

`vI : M CH3  I N CH3  O  CH3 M 0.10 N 0.08

Ni(s)/ Ni2+ (0.15 M)/ Ag+ (0.2 M)/ 15. wb‡Pi †KvbwU kw³kvjx ÿviK? 24. wb‡Pi †KvbwU †m‡KÛvwi ÷¨vÛvW©

Ag(s) K C6H5NH2 L R  NH2 c`v_©?

7. wb‡Pi †KvbwU evg Zwo`&Øvi? M R2NH N R3N K Na2CO3 L K2Cr2O7

K Ni  Ni2+ + 2e 16. S2O32 Avq‡b S Gi RviY msL¨v M H2C2O4. 2H2O N NaOH
L Ni2+ + 2e  Ni
M Ag  Ag+ + e KZ? 25. 1ppm = ?
K 1 mg/ L L 1 mg / mL
N Ag+ + e  Ag K +2 L + 2.5
M +4 N + 4.5 M 1 g/ L N 10 g/L

1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 L 2 M 3 N 4 N 5 L 6 L 7 K 8 M 9 N 10 L 11 M 12 K 13 K
14 L 15 M 16 K 17 L 18 M 19 K 20 N 21 N 22 M 23 L 24 N 25 K

mgq : 25 wgwbU 20 ˆdbx MvjÆm KÅvGWU KGjR, ˆdbx welq ˆKvW : 1 7 7
cƒYÆgvb : 25
imvqb w«¼Zxq cò eüwbeÆvPwb AfxÞv

[we. `Ë. : mieivnK‡Z eüwbeÆvPwb AfxÞvi DîicGò cÉGk²i KÌwgK bÁ¼Gii wecixGZ cÉ`î eYÆmsewjZ e†îmgƒn nGZ mwVK/mGeÆvrK‡Ó¡ DîGii e†îwU ej cGq´Ÿ Kjg «¼viv mÁ·ƒYÆ fivU Ki|]

1. wb‡Pi †KvbwU B‡jK‡UªvdvBj? 9. CO2 Gi mwÜ ZvcgvÎv KZ? 20. `ªe‡Yi †gvjvwiwU wbf©i K‡i
K 31.1 L 72.9
K NH3 L H2O M 76 N 760 i. `ªve‡Ki AvqZb

M ROH N AlCl3 10. g`„ y A¤ø I Zxeª ÿv‡ii UvB‡Uªk‡b Dchy³ ii. `ª‡ei cwigvY
2. wb‡Pi †KvbwU A¤øag©x?
K weDUvBb-2 L weDwUb-2 wb‡`©kK †KvbwU? iii. `ªe‡Yi ZvcgvÎv

M weDUvBb-1 N weD‡Ub K wjUgvm L wg_vBj A‡iÄ wb‡Pi †KvbwU mwVK?

 DóxcKwU cGo 3 I 4 bs cÉGk²i Dîi `vI : M wg_vBj †iW N †dbj d_¨vwjb K i I ii L i I iii

HH 11. †ccvi wk‡í weøwPs G‡R›U †KvbwU? M ii I iii N i, ii I iii

Cl OH K Na2SO4 L Na2CO3 21. gvbe kixGi ˆKvb avZzi AvqGbi AvwaGKÅi
H OH H M NaOH N Ca(OCl) Cl
KviGY AwÕ¡IGcvGivwmm ˆivM nq?
3. wewµqvwU  Cl 60C
H H C6H7N + B + KOH C7H5N K As3+ L Cr3+
i. SN1
ii. SN2 12. DÏxc‡K M Pb2+ N Cd2+

i. Kvwe©j A¨vwg‡bi wekÖx MÜ cvIqv hvq 22. wm‡g›U Drcv`‡b e¨enZ„ K¨vj‡Kwiqvm

ii. B n‡jv †PZbvbvkK c`v_© wK?

iii. GKK av‡c N‡U iii. DÏxc‡Ki wewµqv Øviv cÖvBgvwi K Pzbvcv_i L wm‡g›U iK

wb‡Pi †KvbwU mwVK? A¨vwgb kbv³ Kiv hvq M †K¬ N †møU cv_i

K i I ii L i I iii wb‡Pi †KvbwU mwVK? 23. wb‡Pi †KvbwU ejq mwµqKvix MÖæc?

M ii I iii N i, ii I iii K i I ii L i I iii K  CHO L  CN
4. DÏxc‡Ki wewµqvi †ÿ‡Î †KvbwU mZ¨ bq? M ii I iii N i, ii I iii M  COOH N  OR
K wbDwK¬IdvB‡ji D”P NbgvÎv wewµqvi 13. Ca(OCl)Cl †hŠ‡M Cl Gi RviY msL¨v KZ?
Rb¨ mnvqK bq  DÏxcKwU †`L Ges 24 I 25 bs cÖ‡kœi
K  1,  1 L + 1,  1
L A‡cvjvi `ªve‡K mn‡R N‡U DËi `vI :
M + 1,  2 N  1, + 2
14. 1ppm ej‡Z †evSvq e e
M wewµqvwU GK AvYweK
AÅvGbvW jeY ˆmZz + KÅvG^vW
N wewµqwU wØ-AvYweK K 1 mg/ mL L 1 mg/ L
N 1g/106L
5. NO2 Gi AbyeÜx GwmW n‡jv M 1g/ L KCl
15. 10% H2SO4 `ªe‡Yi †gvjvwiwU KZ?
K HNO3 L HNO2 K 0.00943 M L 0.9943 M Zn Cu

M HNO2 N NO3 M 1.02 M N 0.185 M
6. wn‡gv‡Møvweb ms‡køl‡Y evav †`q
i. Cd2+ 16. Zwor we‡kølY cÖwµqvq †KvbwU cÖ_‡g
PvR©g³y n‡e?
ii. Cr3+ ZnSO4 CuSO4

iii. Pb2+ K Br L NO3 wPÎ : A
M OH N Cl
wb‡Pi †KvbwU mwVK?

K i I ii L i I iii 17. wiPv‡R©ej e¨vUvwi GLv‡b,

M ii I iii N i, ii I iii i. †jW †÷v‡iR EZn/Zn2+ = + 0.76 V

 DóxcKwU cGo 7 I 8 bs cÉGk²i Dîi `vI : ii. wjw_qvg Avqb e¨vUvwi ECu2+ / Cu = + 0.34 V

C3H6O CH2O iii. wjw_qvg e¨vUvwi EFe/Fe2+ = + 0.44V

(A) (B) wb‡Pi †KvbwU mwVK? ZnSO4(0.1M) Ges CuSO4(0.01 M)

7. A †hŠM AskMÖnY K‡i K i I ii L i I iii 24. DÏxc‡Ki †Kv‡li Rb¨

i. K¨vwbRv‡iv wewµqvq M ii I iii N i, ii I iii i. Ecell = EZn/Zn2+ + Ecu/Cu2+
18. wbGPi ˆKvbwU cÉvBgvwi wbG`ÆkK Zwo`&«¼vi?
ii. A¨vjWj Nbxfeb wewµqvq ii. Ecell = EZn/Zn2+ + ECu2+ /Cu

iii. n¨v‡jvdg© wewµqvq K K¨v‡jv‡gj Zwo`&Øvi iii. Ecell = ECu2+/Cu  EZn2+/Zn

wb‡Pi †KvbwU mwVK? L Ag/AgCl wb‡Pi †KvbwU mwVK?

K i I ii L i I iii M Zn - Zwo`&Øvi K i I ii L i I iii

M ii I iii N i, ii I iii N H2 M¨vm Zwo`Ø& vi M ii I iii N i, ii I iii

8. B Gi Kvh©Kix g~jK kbv³Ki‡Y IR mxgv n‡”Q 19. †mj‡y jv‡R †Kvb eÜb Dcw¯’Z? 25. Wvb Aa©‡Kvl‡K Fe/FeSO4 Øviv cwÖ Z¯’vcb

K 1690  1710 cm1 K H - eÜb

L 2130  2250 cm1 L  - MøvB‡KvmvBW Ki‡j m„ó †Kv‡li emf KZ n‡e?

M 3660  3610 cm1 M  - MøvB‡KvmvBW K + 0.32 V L  0.32 V

N 3600  3710 cm1 N †ccUvBW M + 1.2 V N  1.2 V

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 N 2 M 3 M 4 M 5 L 6 M 7 M 8 K 9 K 10 N 11 N 12 N 13 L
14 L 15 M 16 M 17 K 18 N 19 M 20 N 21 N 22 K 23 N 24 M 25 K

mR„ bkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  21

21 wm‡jU K¨v‡WU K‡jR, wm‡jU welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv cY~ ©gvb : 25

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. wbGPi ˆKvbwUGK we÷«¬ AeÕ©vq cvIqv hvq? 11. wmGg´Ÿ Drcv`Gbi cÉavb Dcv`vb ˆKvbwU? wb‡Pi †KvbwU mwVK?

K H2SO4 L KMnO4 K më †KK L Pbz vcv_i K ii L i I iii

2. M K2Cr2O7 N Na2S2O3 M †mvWvA¨vk N †K¬ M ii I iii N i, ii I iii
3.
STP-†Z Aw·‡R‡bi RMS †eM KZ?  DóxcK AbymvGi 12 I 13 bs cÉGk²i Dîi `vI : 18. wb‡Pi †Kvb b¨v‡bv KYv wjw_qvg Avqb
10 mL `ªeY‡K wg_vBj A‡iÄ wb‡`©‡ki e¨vUvwii kw³ e„w× K‡i?
K 461.28 ms1 L 471.94 ms1 K Kve©b b¨v‡bvKYv
Dcw¯’wZ‡Z HCl `ªeY Øviv UvB‡Uªkb Kiv
M 481.97 ms1 N 485.91 ms1

wb‡Pi †Kvb †hŠ‡Mi bvB‡Uªkb wewµqvi nvi L wmwjKb b¨v‡bvKYv

me‡P‡q †ewk? n‡jv| m¤úY~ © cÖkg‡bi Rb¨ 20 mL HCl `ªeY M ZnO b¨v‡bvKYv

K †ebwRb L bvB‡Uªv‡ebwRb cÖ‡qvRb n‡qwQj| N Ni-Cr msKi b¨v‡bvKYv

M †dbj N †ebRvjwWnvBW 19. bvBUÇvBj KvhÆKix gƒjGKi msGKZ ˆKvbwU?

4. SiO2 †hŠM e¨enZ„ nq 200 mL K  NO2 L  CNS
i. wm‡g›U Drcv`‡b 2.12 g M  CN N  CONH2
Na2CO3

ii. wmivwgK Drcv`‡b 12. DÏxc‡Ki Na2CO3 `ªe‡Yi bigvwjwU KZ? 20.  Abv`ª© ZnCl2 mv`v Aat‡¶c
13. Mvp HCl (510 wgwbU ci)
iii. KvP Drcv`‡b K 0.1 N L 1.0 N M 0.2 N N 2.0 N  C4H9 OH

wb‡Pi †KvbwU mwVK? DÏxc‡Ki UvB‡Uªk‡b DóxcGKi wewKÌqvq wewKÌqK AÅvjGKvnj ˆKvbwU?
i. HCl cgÖ vY `ªeY
K i L i, ii ii. HCl `ªe‡Yi NbgvÎv 0.1 M K weDUvbj-1 L weDUvbj-2
iii. wb‡`k© KwU 3.1  4.0 pH †¯‹‡j wb‡Ri M 2-wg_vBj †cÖvcv‡bj-1 N 2-wg_vBj †cÖvcvbj-2
M ii I iii N i, ii I iii
eY© cwieZ©b K‡i
5. A †hŠ‡Mi I‡RvbxKi‡Yi d‡j mg‡gvjvi wb‡Pi †KvbwU mwVK? GKwU Zwor ivmvqwbK †Kvl Zn Ges Fe avZz
Øviv MwVZ| Zn Ges Fe Gi cÖgvY weRviY
Gwm‡Uvb I †cÖvcvb¨vj cvIqv hvq| A †hŠM wefe h_vµ‡g  0.76 V Ges  0.44 V|

wb‡Pi †KvbwU?

K 1-†cw›Ub DÏxcK Abmy v‡i 2122 bs cÖ‡kœi DËi `vI :

L 2-wg_vBj-1 †cw›Ub K i I ii L ii I iii 21. DÏxc‡Ki †Kv‡li †Kvl wefe KZ?

M 2-wg_vBj-2-†cw›Ub M i I iii N i, ii I iii K + 0.32 V L  0.32 V

N 2-†cw›Ub 14. 50 mL ‘A’ M¨vm m²~ wQ`ª w`‡q 146 s mg‡q M + 1.20 V N  1.20 V
15. wbtmwiZ nq| GKB AvqZ‡bi CO2 M¨vm
6. 7 C ZvcgvÎv I 760 mm (Hg) Pv‡c cvwbi GKB Ae¯’vq wbtmwiZ n‡Z mgq jv‡M 115 s| 22.
‘A’ M¨v‡mi AvYweK fi KZ?
Dc‡i 600 mL Aw·‡Rb M¨vm msMÖn Kiv K 17 L 64 M 71 N 80 DÏxc‡Ki Z_¨ Abmy v‡i

n‡jv 7 C ZvcgvÎvq Rjxq ev‡®úi Pvc 14.5 NH2 NaNO2 cÖavb Drcv` i. wR¼ je‡Yi `ªeY †jvnvi cv‡Î `xN©

mm (Hg). STP †Z D³ M¨v‡mi AvqZb mgq ivLv hv‡e bv

KZ? ii. †Kvl wewµqv ¯^Ztù‚Z©fv‡e NU‡e

K 361.48 mL L 461.48 mL iii. Zn ÿqcÖvß n‡e

M 561.48 mL N 661.48 mL HCl, 0  5 C wb‡Pi †KvbwU mwVK?
7. Na3 [CO(NO2)6] †hŠ‡M †Kvev‡ëi RviY
msL¨v KZ? Dc‡ii wewµqvq cÖavb Drcv` †KvbwU? K i I ii L ii I iii

K+2 L+3 M+4 N+6 M i I iii N i, ii I iii

8. KqjvwfwËK we`¨y r‡K‡›`ªi ÿwZKi cÖfve K L 23. hw` 100 mL M KMnO4  D nq Z‡e D
10

n‡jv Gi gvb wb‡Pi †KvbwU?

i. Kqjv Lwb GjvKvq f‚wgi ÿq e„w× cv‡e K 2.793 g Fe2+ L 0.2793 g Fe2+

ii. evqy‡Z avZe A·vB‡Wi cwigvY e„w× cv‡e MN M 0.02793 g Fe2+ N 0.002793 g Fe2+

iii. KwVb KYvmgn~ evZv‡m Qwo‡q co‡e 16. wKÑGgbmb weRviGYi ˆÞGò wbGPi ˆKvbwU mwVK? CH3  CH2  CH(Cl)  CH3 +
K †ebRvjwWnvBW RvwiZ nq KOH(alc)  Z (cÖavb Drcv`)
wb‡Pi †KvbwU mwVK? L †ebRvjwWnvBW n‡Z UjBy b Drcbœ nq 24.
M LiAlH4 n‡jv weRviK Ni
K i L i, iii Z + H2  B

M ii I iii N i, ii I iii
B †hŠMwU wb‡Pi †Kvb ai‡bi mgvYyZv cÖ`k©b K‡i?
9. 0.25 M H2SO4 `ªe‡Yi ppm GK‡K NbgvÎv KZ?
K U‡UvgvwiRg L †gUvgvwiRg
K 24300 L 24400
N Kve©wbj †hŠM n‡Z A¨vj‡Kvnj Drcbœ nq M †PBb mgvYZy v N R¨vwgwZK
M 24500 N 24600
10. CuSO4 `ªe‡Yi g‡a¨ w`‡q 5000 mA Zwor 1 17. wb‡Pi †Kvb ai‡bi `~lK cvwbi DO gvb mgvYyZv

NÈv hver Pvjbv Ki‡j wK cwigvY Kcvi n«vm K‡i? 25. K¨v‡jv‡gj Zwo`&Øv‡i wb‡Pi †KvbwU
i. A‰Re `~lK
mwÂZ n‡e? iii. wkí `~lK ii. ˆRe `~lK e¨envi Kiv nq?

K 5.5222 g L 5.7222 g K AgCl L ZnCl2
M HgCl2 N Hg2Cl2
M 5.8222 g N 5.9222 g

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 M 2 M 3 M 4 N 5 M 6 M 7 L 8 N 9 M 10 N 11 L 12 M 13 L
14 M 15 M 16 L 17 M 18 L 19 M 20 L 21 K 22 N 23 K 24 M 25 N

K¨v‡WU K‡j‡Ri wbe©vPwb cix¶vi
cÖkœcÎ : m„Rbkxj

22 wgRv© ciy K¨v‡WU K‡jR, Uv½vBj welq ˆKvW : 1 7 7

mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Y©gvb : 50

[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi cY~ ©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó ckÖ œ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]

1  1.0 atm 300 mL 0.39 g 1.5 atm 500 mL 0.85 g 5 Kvu Pvgvj wkí
A MÅvm
B MÅvm K¨vjK¨vwiqvm I Avi‡R‡jwmqvm RvZxq c`v_© X

 t = 30C Kve©b WvBA·vBW I A¨v‡gvwbqv Y
K. GK d¨viv‡W we`¨y r mgvb KZ?
K. e‡q‡ji m~ÎwU wjL| 1 L. NaOH Gi NbgvÎv 700 ppm ej‡Z Kx eSy ? 1
M. X Drcv`‡bi gj~ bxwZ e¨vL¨v Ki| 2
L. †Wwm‡gvjvi (0.1 M) `ªeY GKwU cÖgvY `ªeY e¨vL¨v Ki| 2 N. cwi‡e‡ki Dci X wk‡íi cÖfve we‡kølY Ki| 3
4
M. A Ges B M¨vmØq‡K GK wjUvi cv‡Î ivLv n‡j wgwkÖZ

M¨v‡mi †gvU Pvc wbY©q Ki| 3

N. †Kvb M¨vmwUi e¨vcb nvi †ewk n‡e? MvwYwZKfv‡e CH3  CH = C(CH3)2 + O2 CCl4 AÅvjwKb Zn

we‡kølY Ki| 4 6 IGRvbvBW  A
H2O 
2 X2 (iii)
M (ii)

(i) + B + ZnO 1
PV
K. AvswkK Pvc Kx?

P atm L. Zwor ivmvqwbK †Kv‡l jeY †mZz e¨envi Kiv nq †Kb? 2

GLv‡b, X2 M¨vmwU NH3 Drcv`‡bi Rb¨ `vqx M¨vm| M. DÏxc‡Ki A¨vjwKb Kx R¨vwgwZK mgvYZy v cÖ`k©b

K. †WU‡ji ms‡KZ wjL| 1 Ki‡Z cvi‡e? e¨vL¨v Ki| 3

L. wmMgv eÜb cvB eÜb A‡cÿv kw³kvjx †Kb? e¨vL¨v N. A I B †hŠ‡Mi g‡a¨ kbv³Kvix cv_©K¨ wjL| 4
7 A
Ki| 2
S

M. STP †Z DÏxc‡Ki (iii) bs Gi M¨vmwUi RMS †eM Zn Cu

wbY©q Ki| 3

N. DÏxc‡Ki (ii) I (iii) bs †iLvØq (i) bs †_‡K wfbœ 0.5 M 0.25 M

†Kb? we‡kølY Ki| 4 ZnSO4 CuSO4
`ªeY `ªeY

3 GLv‡b, EZn/Zn2+ = 0.76 V; ECu2+/Cu = 0.34 V

25 mL 25 mL 0.1 M t = 25 C
NH4OH HCl
K. jyKvm weKviK Kx?
1

K. e.m.f Kx? 1 L. KMnO4 †m‡KÛvwi ÷¨vÛvW© c`v_© †Kb? 2

L. AlCl3 GKwU jyBm GwmW e¨vL¨v Ki| 2 M. DÏxc‡Ki †KvlwUi Zwo”PvjK e‡ji gvb wbY©q Ki| 3

M. DÏxc‡Ki cÖgvY `ªeYwU‡K Zwz g Kxfv‡e †mwg‡gvjvi N. M (EM2+/M =  0.44 V) avZzi cv‡Îi DÏxc‡Ki
†Kvb `ªeYwU `xN© mgq msiÿY Kiv hv‡e?
`ªe‡Y cwiYZ Ki‡e? 3

N. 0.1 M ÿvi Ges Gwm‡Wi mv‡_ UvB‡Uªk‡bi Rb¨ MvwYwZKfv‡e we‡kølY Ki| 4

†Kvb wb‡`©kK Dchy³ n‡e? we‡kølY Ki| 4 8 CH3Cl X
AlCl3
4  †jvnvi `ªeY‡K jNy H2SO4 Øviv m¤úY~ ©iƒ‡c UvB‡Uªkb Ki‡Z †eb‡RvwqK Gwm‡Wi
wWKve©w·‡jkb
50 mL †mwg‡gvjvi KMnO4 cÖ‡qvRb n‡jv| HNO3, H2SO4 Y
K. Zwor we‡kølY Kx?
K. †gvjvi `ªeY Kx? 1 1

L. bvB‡Uªv‡Rb mseÜb ej‡Z Kx eyS? 2 L. GwmW e„wó e¨vL¨v Ki| 2

M. DÏxc‡Ki Fe Gi cwigvY wnmve Ki| 3 M. A †_‡K Y Drcv`‡bi †KŠkj wjL| 3

N. DÏxc‡K KMnO4 Gi cwie‡Z© K2Cr2O7 wb‡j msNwUZ N. X I Y †hŠM؇qi g‡a¨ mwµqZvi Zzjbv hwy ³mn
wewµqvwUi Avqb B‡jKUªb c×wZ‡Z mgZv Ki| 4
we‡kølY Ki| 4

mR„ bkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  23

23 ivRkvnx K¨v‡WU K‡jR, ivRkvnx welq ˆKvW : 1 7 7

mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ c~Y©gvb : 50

[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó ckÖ œ¸‡jvi DËi `vI| †h †Kv‡bv cvu PwU cÖ‡kœi DËi w`‡Z n‡e|]

1  25 C 1.6 dm3 25 C, 2 L X+Y 5  A GKwU ˆRe †hŠM hv‡K I‡RvbxKiY Ki‡j GKwUgvÎ
80 cm (Hg) 5L
500 mm (Hg) 25 C Drcv` B †cÖvcvb¨vj cvIqv hvq|
0.69 g 1.21 g

cvÎ-X cvÎ-Y cvÎ-Z K. †µvgv‡UªvMÖvwd Kx? 1

K. B‡jK‡UªvjvBU Kx? 1 L. wgwj‡gvjvi `ªeY GKwU cÖgY `ªeY  e¨vL¨v Ki| 2

L. nvB‡Wªv‡R‡bi Zwor ivmvqwbK Zj¨v¼ 1.447  106 M. †`LvI †h, A †÷wiImgvYZy v cÖ`k©b K‡i| 3

g/C ej‡Z wK eSy ? 2 N. B †_‡K A¨vj‡Kb I 3-A¨vj‡Kvnj cÖ¯‘Z Kiv m¤¢e

M. X, Y I Z Gi AvswkK Pvc I †gvU Pv‡ci g‡a¨ n‡e wK? wewµqvmn †jL| 4

m¤úK© ¯’vcb Ki| 3 6  (i) KMnO4 + KI 

N. X I Y Gi g‡a¨ †KvbwU `ªæZ wbtmwiZ n‡e? (ii) FeSO4 + K2Cr2O7 + H2SO4 

MvwYwZKfv‡e we‡kølY Ki| 4 (iii) FeSO4 + KMnO4 + H2SO4 

2  (i) Fe/Fe2+ (1 M) K. Wvqv‡RvKiY wewµqv Kx? 1

(ii) Ag/Ag+ (1 M) L. weDUvBb-I A¤øag©x †Kb? e¨vL¨v Ki| 2
(iii) Fe/Fe2+ (0.13 M) || Ag+ (0.13 M) / Ag
M. Aaw© ewµqvi gva¨‡g DÏxc‡Ki (i) bs †K ÿvixq
GLv‡b, T = 25 C, EFe2+/Fe =  0.44 V

EAg2+/Ag = 0.80 V gva¨‡g mgZvKiY Ki| 3

K. AbyeÜx GwmW Kx? 1 N. 25 g weRviK c`v_©‡K RvwiZ Ki‡Z (ii) I (iii) bs

L. †gvjvi M¨vm aªæeK R-Gi Zvrch© we‡kølY Ki| 2 wewµqvi †Kvb RviK c`v_©wU †ewk cwigv‡Y jvM‡e?

M. DÏxc‡Ki (i) I (ii) Gi mv‡_ c_„ Kfv‡e nvB‡Wªv‡Rb MvwYwZKfv‡e e¨vL¨v Ki| 4

Zwo`Øvi h³y Ki‡j Zzwg Kx Kx cv_©K¨ cv‡e? e¨vL¨v 7

Ki| 3

N. (iii) bs †Kv‡li emf wbY©q Kiv m¤¢e wK?  HClO4 NaOH
5.5 g
MvwYwZKfv‡e cÖgvY Ki| 4 200 mL †Wwm‡gvjvi

3 cvÎ-A 100 mL

cvÎ-B

B‡jKUªb K. ETP Gi msÁv `vI| 1
R¡vjvwb
PbO2 O2 L. Møvm‡K AwZkxZjxKZ… Zij ejv nq †Kb? 2
cÖfveK ¸uovHh2y³
wPÎ-A Pb mw”Q`ª MÖvdvBU cÖfveK ¸uovhy³ M. A-cv‡Îi `ªe‡Yi NbgvÎv ppm GK‡K wbY©q Ki| 3
mw”Q`ª MÖvdvBU
K. COD Kx? Ae¨enZ„
nvB‡Wªv‡Rb

H2O Ae¨en„Z O2 Ges N. A I B cv‡Îi wgkÖ‡Yi cÖK…wZ Kx n‡e? 
†gg‡eªb K¨v‡_vWmswkøó eR©¨
A¨v‡bvW
wPÎ-B
MvwYwZKfv‡e e¨vL¨v Ki| 4
1
8
L. CFC-Øviv I‡Rvb¯Íi ÿ‡qi †KŠkj †jL| 2

M. DÏxc‡Ki A Gi Kvhc© ÖYvjx e¨vL¨v Ki| 3

N. A I B Gi g‡a¨ †KvbwU cwi‡ek evÜe-†hŠw³K

we‡kølY Ki| 4

4  A + Zn  C6H6 + ZnO

K. †eqvi m~Î weew„ Z Ki| 1 'X' Manufacturing

L. kw³kvjx GwmW I `ye©j ÿv‡ii UvB‡Uªk‡b wg_vBj K. gy³ g~jK Kx? 1

A‡iÄ wb‡`©kK e¨envi Kiv nq †Kb? 2 L. †Kv¬ ‡ivdig‡K iwOb †evZ‡j msiÿY Ki‡Z nq †Kb? 2

M. A †_‡K GKwU RxevYby vkK †hŠM cÖ¯‘wZ mgxKiYmn M. DËg gv‡bi X Drcv`‡b †Kvb ai‡bi mshywZ e¨envi

†jL| 3

N. A †_‡K GKwU ˆRe GwmW I B_vi cÖ¯‘wZ m¤¢e wK? Ki‡Z n‡e  e¨vL¨v Ki| 3

mgxKiYmn e¨vL¨v Ki| 4 N. X Drcv`‡bi †KŠkj wPÎmn eY©bv Ki| 4

24 gqgbwmsn Mvj©m K¨v‡WU K‡jR, gqgbwmsn welq ˆKvW : 1 7 7

mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ mR„ bkxj cÖkœ cY~ ©gvb : 50

[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi cY~ ©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó ckÖ œ¸‡jvi DËi `vI| †h †Kv‡bv cvu PwU cÖ‡kœi DËi w`‡Z n‡e|]

1  A Gi e¨vcb nvi B †_‡K 2.92 ¸Y `ªæZ| B Gi AvYweK fi 5  CaO + SiO2 + Al2O3 + MgO  A

17| K. Tc Kx? 1

K. RMS †eM Kx? 1 L. wb‡Pi †KvlwUi emf gvb wnmve Ki| 2

L. CH3COCl n¨v‡jvdig wewµqv †`q bv †Kb? 2 Cd/Cd2+ (0.02 M) | H+ (0.2 M)/H2 (0.5 atm), Pt.

M. A Gi AvYweK fi wnmve Ki| 3 ECd2+/Cd =  0.402 V

N. Avi‡nwbqv‡mi gZvbmy v‡i B ÿvi n‡e Kx? B Gi M. A Drcv`‡bi gj~ bxwZ e¨vL¨v Ki| 3

ÿviawg©Zv wewµqvmn cÖgvY Ki| 4 N. A wkí †_‡K Drcbœ `l~ Kmgn~ cwi‡ek `w~ lZ K‡i

we‡kølY Ki| 4

2
6

K. d¨viv‡Wi Zwor we‡køl‡Yi cÖ_g mÎ~ wU wjL| 1 K. cÖvBgvwi wb‡`©kK Zwo`Øvi Kv‡K e‡j? 1

L. SO3 B‡jKUªbvKl©x †Kb? 2 L. M¨vm Aa©‡Kvl ej‡Z wK eSy ? 2

M. †`LvI †h, (1) bs wewµqvi X n‡jv B‡jKUªbvKl©x M. A I bvB‡Uªv‡ebwR‡bi g‡a¨ B‡jKUªbvKl©x wewµqvi

hyZ wewµqvi Drcv`| 3 mwµqZvi Zjz bv Ki| 3

N. Abv`ª© AlCl3 wewµqv †k‡l AcwiewZ©Z _v‡K, Zwz g N. m bvB‡Uªv A¨vwbwjb Drcbœ nIqvi †cQ‡b DÏxc‡Ki
wKfv‡e (2) bs wewµqvi mvnv‡h¨ e¨vL¨v Ki‡e? 4
wewµqvi †Kv‡bv hwy ³ Av‡Q Kx? we‡kølY Ki| 4

3  X(aq) + H2O(l) HooooI H3O+ + Cl(aq) 1 7  KI + X  I2 + Cu2I2 + K2SO4 1
K. †dq« b-11 Gi ms‡KZ wjL| K. †dj¯úvi Kx?

L. d¨viv‡W m‡~ Îi 2wU mxgve×Zv wjL| 2 L. Etching of Glass ej‡Z Kx eSy ? 2

M. X Gi cÖ¯‘wZ eY©bv Ki| 3 M. X Gi `ªeY A¤øxq cÖK…wZi e¨vL¨v Ki| 3

N. wewµqvi mvg¨e¯’v Wvb w`‡K Aew¯’Z hyw³mn N. DÏxc‡Ki †iW· wewµqvwUi mgZv wjL Ges e¨vL¨v

we‡kølY Ki| 4 Ki| 4

4 8  25 mL 65 mL A+B
0.15 M
K. jeY †mZz Kx? 1 0.1 M KOH cvÎ-C
H2SO4
cvÎ-B
cvÎ-A

L. B_vBb A¤øag©x †Kb? 2 K. Am‡gvwUK Pvc Kx? 1

M. B †_‡K Drcbœ wMÖMbvW© weKvi‡Ki ¸iæZ¡ e¨vL¨v Ki| 3 L. I‡RvbxKiY ej‡Z wK eSy ? 2

N. A I B Gi cwigv‡Yi wfbZœ vi KviY wewµqv M. cvÎ-A †Z wK cwigvY H2SO4 we`¨gvb? wnmve Ki| 3

†KŠkjmn eY©bv Ki| 4 N. cvÎ-C Gi `ªe‡Yi cÖK…wZ we‡kølY Ki| 4

kxl©¯’vbxq K‡j‡Ri wbe©vPwb cix¶vi
cÖkcœ Î I DËigvjv : eûwbe©vPwb

25 bUi †Wg K‡jR, XvKv welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. wm‡g›U wk‡íi †ÿ‡Î wb‡Pi †KvbwU mwVK? 19. †KvbwU mwVK?

i. nvB‡Wvª wjK Bb‡W· (1.9  2.1) Gi g‡a¨ nq K i I ii L ii I iii K cvwb †_‡K LiZv mw„ óKvix Avqb AcmviY

ii. Avqib A·vB‡Wi Rb¨ Kv‡jv eY© nq M i I iii N i, ii I iii Kiv‡K g`„ yKiY e‡j

iii. 3 CaO . Al2O3 RgvU euvav `ªæZ K‡i 10. SN2 wewµqvi mwµqZvq wb‡Pi †Kvb µgwU mwVK? L TDS Gi gvb AwaK n‡j cvwb my‡cq

wb‡Pi †KvbwU mwVK? K CH3Cl > CH3 CHClCH3 > C2H5Cl M `ªexf‚Z Aw·‡Rb‡K mPivPi ppm GK‡K cÖKvk

K i I ii L ii I iii L CH3Cl > C2H5Cl > CH3 CHClCH3 Kiv nq bv
M CH3CHClCH3 > C2H5Cl > CH3Cl
M i I iii N i, ii I iii N C2H5Cl > CH3Cl > CH3CHClCH3 N BOD Gi gvb COD †_‡K eo

2. b¨v‡bv KYvi ˆewkó¨ 11. PviwU †gŠj P, Q, R I S Gi weRviY wefe 20. †KvbwU mwVK?
i. Cs Gi cvigvYweK AvKvi †_‡K †QvU h_vµ‡g 2.90 + 0.34 + 1.20 Ges  0.76 mwµqZv i. Uª‡cv‡ùqv‡ii wVK Ic‡ii evqygЇji ¯iÍ wU

ii. UV iwk¥‡Z `„k¨gvb n«v‡mi µg ÷ª¨v‡Uv‡ùqvi

iii. (1  100) nm cwim‡i nq K P>Q>R>S L S>R>Q>P ii. ÷ª¨v‡Uv‡ùqv‡i I‡Rvb M¨vm Ae¯’vb K‡i

wb‡Pi †KvbwU mwVK? M P>S>Q>R N Q>S>R>P iii. Nw~ Y©S‡oi mgq N~wY©S‡oi †K‡›`ª Pvc me©wb¤œ nq

K i I ii L ii I iii 12. wb‡Pi †Kvb †KvlwUi Rb¨ Ecell  Ecell = 0. wb‡Pi †KvbwU mwVK?
M i I iii N i, ii I iii
K Cu/Cu2+ (0.01 M) || Ag+ (0.1M) / Ag K i I ii L i I iii
M ii I iii N i, ii I iii
 DÏxcKwU jÿ Ki Ges 3 I 4 bs cÖ‡kœi DËi `vI : L Pt. H2/pH = 1 || Zn2 + (0.02M) /Zn

Dcv`vbmgn~  wmøc  wdëvi †KK  eøvsK  M Pt. H2/pH = 1 || Zn2+ (1M) / Zn  wb‡Pi DÏxcKwU jÿ Ki Ges 21 I 22 bs cÖ‡kœi
N Pt. H2 / H+ (0.01M) || Zn2 + (0.01M)/Zn
wkí 'A' DËi `vI :
13. Cr(lll) mvj‡dU `ªe‡Y 1.20 A¨vw¤úqvi we`y¨r KZ mgq
3. A wk‡íi cÖavb KuvPvgvj †KvbwU? 25 mL CuSO4 `ªe‡Y AwZwi³ KI `ªeY †hvM K‡i
K Pzbvcv_i L Pvqbv †K¬ hver cÖevwnZ Ki‡j K¨v‡_v‡W 10.0 g avZe †µvwgqvg weg³y I2 †K UvB‡Uªkb Ki‡Z 30 mL 0.15 M Na2S2O3
M †dj¯úvi mwÂZ n‡e? `ªe‡Yi cÖ‡qvRb nq|
N PbO
K 12 h 53 min L 15 h 50 min 21. DÏxc‡K we`¨gvb Cu2+ Gi cwigvY KZ (g)?
4. A wkí Drcv`‡bi †ÿ‡Î M 9 h 53 min N 13 h 52 min K 0.186 L 0.286
i. †Mwø Rs G‡R›U iƒ‡c NaCl e¨enZ„ nq
 wb‡Pi DÏxcKwU jÿ Ki Ges 14 I 15 bs cÖ‡kœi M 0.5715 N1
ii. d¬w·s c`v_©iƒ‡c †dj¯úvi e¨en„Z nq 22. DÏxc‡Ki wewµqvwU
DËi `vI :
iii. ZvcgvÎv (1450  1500) C e¨en„Z nq
Zn cv‡Î FeSO4 `ªeY ivLv n‡jv| Zn I Fe Gi i. Av‡qv‡WvwgwZ
wb‡Pi †KvbwU mwVK?
cÖgvY weRviY wefe h_vµ‡g 0.76 V Ges  0.44 V. ii. wewµqvwU‡Z 1 mol I2 mv‡_ 1 mol Na2S2O3
K i I ii L ii I iii wewµqv K‡i
M i I iii N i, ii I iii 14. DóxcGKi Drc®² ˆKvlwUi ˆKvl wefe ‰i gvb iii. wewµqvwU‡Z 2 mL CuSO4 Gi 1 mol I2 wewµqv

5. wimvBwK¬s Gi †ÿ‡Î K + 0.32 V L  0.32 V K‡i|

i. KvP 100% wimvBwK¬s †hvM¨ 15. M + 1.20 V N  1.20 V wb‡Pi †KvbwU mwVK?
K i I ii
ii. Avqib wimvBwK¬s G 60% we`y¨r mvkÖq nq DÏxc‡K Drcbœ †KvlwUi †ÿ‡Î M i I iii L ii I iii
i. wRsK cvÎwU K¨v‡_vW N i, ii I iii
iii. cwi‡ek `l~ Y‡iva K‡i Z_¨¸‡jv jÿ Ki
ii. †Kvl wewµqvwU ¯^Ztù‚Z©
wb‡Pi †KvbwU mwVK? iii. †KvlwUi E Gi gvb (+) n‡j E Gi gvbI (+) 23.

K i I ii L ii I iii n‡e ( )i. w
M i I iii N i, ii I iii wb‡Pi †KvbwU mwVK? 0.35 M Ca(NO3)2 `ªe‡Yi NbgvÎv 5.7% v

6. CH3 CH(OH) CH3-G †hŠMwUi bvg K i I ii L ii I iii ( )ii. 20% w A·vwjK Gwm‡Wi (H2C2O4)
v
i. cÖcvbj M i I iii N i, ii I iii

ii. cÖcvbj-2 16. wb‡Pi MÖvdwUi †ÿ‡Î †KvbwU mwVK? †gvjvwiwU 2.22 M

iii. wg_vBj B_vbj-1 iii. 10600 ppm As3+ `ªe‡Yi †gvjvwiwU 0.142 M|

wb‡Pi †KvbwU mwVK? T1 wb‡Pi †KvbwU mwVK?

K i I ii L ii I iii V T2 K i I ii L ii I iii

M i I iii N i, ii I iii T3 M i I iii N i, ii I iii

7. n„`‡ivM angina pictoris wbevi‡Y †KvbwU Jlaiƒ‡c p1 24. Z_¨¸‡jv jÿ Ki
e¨en„Z nq?
K T1 < T2 < T3 L T3 < T2 < T1 i. A¨vj‡K‡b mvaviYZ   * ¯’vbvšiÍ N‡U
K TNT L DNT 17. M T1 > T2 < T3 N T3 > T1 < T2 ii. AAS cixÿY c×wZ‡Z †Kvb `ªe‡Yi ARvbv
18.
M bvB‡UªvwMømvwib N bvB‡Uªv‡dbj w¯’i Pv‡c  10.5 C GKwU M¨v‡mi NbZ¡ 0.8 g L1 NbgvÎv wbY©q Kiv hvq

 DÏxcKwU jÿ Ki Ges 8 I 9 bs cÖ‡kœi DËi `vI : n‡j KZ ZvcgvÎvq M¨v‡mi NbZ¡ 0.7 g L1? iii. GC †Z wbw®µq M¨vm †hgb N2, H2, He, Ar
e¨envi Kiv hvq
8. HCONH(CH3) LiAlH4 K 27 C L 50 C
(A) 
B M 65 C N 75 C wb‡Pi †KvbwU mwVK?

'A' †hŠMwUi IUPAC bvg Kx? Dw³¸‡jv jÿ Ki K i I ii L ii I iii
M i I iii N i, ii I iii
K wg_vbvBW L wg_vBj B_vbvgvBW i. nvB‡WªvKve©b RvZxq evqy `l~ K¸‡jvi g‡a¨

M B_vbvgvBW evqygЇj CH4 m‡e©v”P 25. 200 g KClO3 †K 750 C ZvcgvÎvq we‡qvRb K‡i
N N-wg_vBj wg_vbvgvBW ii. CFC11 †hŠ‡M H cigvYiy msL¨v 1wU
†h, cwigvY Aw·‡Rb cvIqv hvq GKB cwigvY
9. 'B' †hŠMwUi †ÿ‡Î iii. CD kix‡i mwÂZ n‡q BUvB-BUvB †ivM mw„ ó Aw·‡Rb †c‡Z n‡j Kx cwigvY gviwKDwiK A·vBW
K‡i
i. GwU A n‡Z AwaK ÿvixq we‡qvRb Kiv cÖ‡qvRb
wb‡Pi †KvbwU mwVK?
ii. GwU Kvwe©j A¨vwgb wewµqv cÖ`k©b K‡i K 792.82 g L 1057.96 g
iii. GwU HNO2 Gi mv‡_ njy` e‡Y©i ˆZjv³ †hŠM K i I ii L i I iii M 1420 g N 1712 g
ˆZwi K‡i| M ii I iii N i, ii I iii

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 N 2 L 3 L 4 N 5 M 6 L 7 M 8 N 9 M 10 L 11 M 12 N 13 K
14 K 15 L 16 K 17 K 18 L 19 K 20 N 21 L 22 M 23 N 24 K 25 L

ˆmU : K 26 Av`gRx K¨v›Ub‡g›U K‡jR, XvKv welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. wb‡Pi †KvbwU n¨v‡jvdg© wewµqv? 10. cÖvBgvwi A¨vwgb kbv³Ki‡Y e¨enZ„ 18. RviK I weRvi‡Ki mwVK Abcy vZ
K B_vbj †KvbwU?
nq wb‡Pi †Kvb wewµqvwU?
L B_vbwqK GwmW
K Kvwe©j A¨vwgb wewµqv K 1:6 L 6:1 M 2:5 N 5:2

M B_vbwqj †K¬vivBW L †Kve wewµqv 19. wg_vBj A‡iÄ

N B_vbvgvBW M K¨vwbRv‡iv wewµqv i. A¤øxq gva¨‡g jvj eY© †`q
2. Kve©b-Kve©b GKK e܇bi welg N ivBgvi UvBg¨vb wewµqv
ii. ÿvixq gva¨‡g Kgjv eY© †`q

wefvR‡b Drcbœ nq 11. GwmW ew„ ói Rb¨ †KvbwU `vqx? iii. Zxeª A¤ø I ÿv‡ii UvB‡Uªk‡b

i. Kve©wbqvg Avqb K O2 L NO e¨enZ„ nq
ii. Kve©vbvqb M CO2 N SO2 wb‡Pi †KvbwU mwVK?

iii. g³y gj~ K 12. wb‡Pi MÖvdwU †Kvb mÎ~ ‡K mg_©b K‡i? K i I ii L i I iii

wb‡Pi †KvbwU mwVK? M ii I iii N i, ii I iii

K i L i I ii V 20. wb‡Pi MÖvdwU †Kvb m~·K mg_©b K‡i?

M iii N i, ii I iii
3. wb‡Pi †KvbwU mej GwmW?
A

K HCOOH L ClCH2 COOH
M BrCH2COOH N NO2CH2COOH
P1
4. wMÖMbvW© weKviK + CO2  X H2O Y C
5.  K e‡q‡ji mÎ~ L Pvj©‡mi m~Î
M Wvë‡bi mÎ~ N †eqv‡ii m~Î K e‡q‡ji mÎ~ L Pvj©‡mi mÎ~
Y- †hŠMwU wb‡Pi †KvbwU? 13. A, B, C I D M¨vmmg~‡ni msKU M Wvë‡bi m~Î N †eqv‡ii mÎ~
ZvcgvÎv h_vµ‡g 25 C, 10 C,  80 C A, B, C I D PviwU Zwo`Ø& v‡ii
K 1 A¨vj‡Kvnj L 2 A¨vj‡Kvnj
& 15 C †Kvb M¨vmwU‡K mn‡R weRviY wefe h_vµ‡g  1.36,  0.32,
M 3 A¨vj‡Kvnj N ˆRe GwmW 21.
ZijxKiY Kiv hv‡e? 0.00,  1.26 V †gŠjmg‡~ ni mwµqZvi

R  CONH2 + KOH + Br2  R  KA LB MC ND
NH2 + KBr + H2O

wewµqvwUi bvg n‡”Q 14. CH4 Gi e¨vc‡bi nvi, X Gi e¨vc‡bi Aatµg h_vµ‡g

K ndg¨vb ÿz`ªvskKiY nv‡ii wظY| X Gi AvYweK fi K A, D, B & C L C, B, D & A

L DU©R wewµqv K 16 L 32 M B, D, C & A N C, A, D & B
M K¨vwbRv‡iv wewµqv M 64 N 80
22. Zwo`Ø& v‡ii weRviY wefe h_vµ‡g :

N A¨vjWj wewµqv 15. ev¯eÍ M¨v‡mi Rb¨ K+/K =  2.93 V, Ag+/Ag = 0.8 V,
Cu2+/Cu = 0.34 V, Fe2+/Fe =  0.44 V.
6. K2Cr2O7 + H2SO4 [O] 16. i. E = 0
RCH2OH + [O]  Y  Z V wb‡Pi †KvbwU kw³kvjx weRviK?
7. 
8. (X) ii. Z  1 K K L Ag M Cu N Fe
9. 23. E0Zn/Zn2+ + 0.76 V
X, Y, Z Gi ùzUbv‡¼i mwVK µg †KvbwU? iii. PV  RT
E0Ni/Ni2+ = 0.25 V
KX>Y>Z LX>Z>Y wb‡Pi †KvbwU mwVK?
MY> Z>X NZ>X>Y Zn + Ni2+  Zn2+ + Ni D‡jøwLZ
K i L i I iii
†ebwRb ej‡q wZbwU wfbœ cÖwZ¯’vcK wewµqvwUi cÖgvY Zwo”PvjK e‡ji gvb
M ii I iii N i, ii I iii
we`¨gvb _vK‡j m¤¢ve¨ mgvYy KqwU? wb‡Pi †KvbwU?
†gvjvi A¨veRiwUwfwU () Gi GKK
K 3 L 6 M 9 N 10 K 0.25 V L 0.51 V
†KvbwU?
wb‡Pi †KvbwU A‡_©v c¨viv wb‡`©kK? M 1.01 V N  0.51 V

K  COOH L  CHO K cm1 L mol1 L mol1 L1 24. Pvqbv †K¬ Gi ms‡KZ †KvbwU?

M  NO2 N  NHCOCH3 M mol L1 N atm K 3Al2O3 . 2SiO2
L Na2O . Al2O3 . 6SiO2
60 C wb‡Pi DÏxcKwU co Ges 17 I 18
C6H5OH + CHCl3 + NaOH 
bs cÖ‡kœi DËi `vI : M CaO . Al2O3 . 6SiO2
AA-+†hNŠMawCU lwb+‡PHi2O†KvbwU?
K m¨vwjmvjwWnvBW MnO4 + C2O42 + H+  Mn2+ + N Al2O3 . 2SiO2 . 2H2O
CO2 + H2O
25. mvbw¯µb †jvk‡b b¨v‡bv KYv wn‡m‡e
L A¨v‡µvwjb 17. MnO4 AvqbwU KZwU B‡jKUªb MÖnY e¨en„Z nq †KvbwU?

M m¨vwjmvBwjK GwmW K‡i? K Na2O L ZnO
M Al2O3 N CuO
N †µvUvb¨vjwWnvBW K3 L5 M6 N7

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 K 2 L 3 L 4 N 5 K 6 N 7 N 8 N 9 K 10 K 11 N 12 K 13 K
14 M 15 M 16 K 17 L 18 M 19 L 20 L 21 K 22 K 23 L 24 N 25 L

m„Rbkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  27

ˆmU : L 27 nwj µm K‡jR, XvKv welq ˆKvW : 1 7 7
mgq : 25 wgwbU cY~ ©gvb : 25
imvqb wØZxq cÎ eûwbe©vPwb Afxÿv

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. †KvbwU mwVK cÖvBgvwi evqy `~lK 10. UªvÝwg‡UÝ Gi mwVK MvwYwZK iƒc †KvbwU? 18. B + CH3 OH  D + H2O Gi †ÿ‡Î
G‡ÿ‡Î [I = AvcwZZ Av‡jvK iwk¥i †KvbwU mwVK?
K CO, SO2 L CO, NO2 ZxeªZv, I0 = wbM©Z Av‡jvK iwk¥i ZxeªZv] i. B Gi ( OH) gj~ K Øviv cvwb
M NO, SO3 N NH3, H2SO2
2. UV-Spectroscopy-Gi AvYweK Drcbœ nq
K log I L  log I0 ii. B †hŠ‡Mi bvg wg_vBj †cÖvcv‡bv‡qU
Awe©Uv‡j kw³i mwVK µg †KvbwU? I0 I

K  >  > n L n < * < * MII0 N log T iii. wMÖMbvW© weKviK †_‡K B cvIqv m¤¢e
M  <  < n N n > * > *
3. 11. iM. nOw4e w+µCq2Ovq421+06Hm+ol Mn2+ +DCrcO2b+œ nH‡2eO wb‡Pi †KvbwU mwVK?
4. wbGPi ˆKvbwU ÷aygvò mwVK Abye®¬x Þvi? CO2
5. K H3O+ L CO32 K i I ii L i I iii
M N2H5+ N HSO4 M ii I iii N i, ii I iii
ii. wewµqvwU GKwU AmvgÄm¨ wewµqv
iii. D³ wewµqvq 3wU †hŠM A¤øxq ag© 19. CETP Gi A_© Kx?
CrO5 †hŠ‡M Cr Gi mwVK RviY gvb nj cÖ`k©b K‡i K Catalytic ETP L Combined ETP
K + 10 L +6
M +5 N 5 wb‡Pi †KvbwU mwVK? M Common ETP N Chemical ETP
20. Kqjvi gvb wbav© iK mP~ K¸‡jv Kx?
Ni2+ K i I ii L i I iii K BTU, (%S) L BTU, (%C)
(A) E Ni =  0.25V M ii I iii N i, ii I iii
M (% ev®ú), QvB N (%S), (%C)
Zn2+  1H22SI+1S3Ob2 scHÖ‡k2œiO +S `vI : 21. †Kvb ms‡KZwU mwVK?
(B) E Zn =  0.76V
DËi K ms‡klø M¨vm = CO & H2Gi
Cu2+ 12. wewµqvq 6 mol H2S n‡Z Kg MÖvg AbycvZ = 2:1
(c) E Cu = + 0.34V H2O Drcbœ nq?
L †cÖvwWDmvi M¨vm = CO & N2 Gi
i. Cu cv‡Î NiSO4 `ªeY ivLv hv‡e K 18g L 54g M 90(g) N 108g
ii. B I C avZiz B‡jK‡UªvW Øviv 13. i. wØZxq †hŠMwU I H2O2 GKB ag©
MwVZ †Kvl wewµqv ¯^ZtùZ‚ © nq (RviK/weRviK) cÖ`k©b K‡i AbycvZ = 1:2
iii. A I C mgš^‡q MwVZ †Kv‡li ii. RviK I weRvi‡Ki g‡a¨
e.m.f Gi gvb + 0.51V B‡jKUª‡bi cv_©K¨ 30wU M ms‡køl M¨vm = CO & H2 Gi
wb‡Pi †KvbwU mwVK? iii. wewµqvq H2S Gi cwie‡Z© HI e¨envi AbycvZ = 1:3

K i I ii L i I iii Ki‡j GKB cwigvY S Drcbœ nq N †cÖvwWDmvi M¨vm = CO & N2 Gi
Abcy vZ = 2:1

M ii I iii N i, ii I iii wb‡Pi †KvbwU mwVK?  (i) IqvUvi M¨vm H2(g) 300 C X(g) + H2O(g)

6. Pb-†÷v‡iR e¨vUvwii e.m.f Gi gvb K i I ii L i I iii
Ni
(ii) †mvWv A¨vm + Pbz vcv_i + evwj
KZ n‡j cby ivq PvwR©Z Kiv nq? M ii I iii N i, ii I iii

K 1.17V L 1.25  1.26V 14. †÷wiI k‡ãi A_©
M 2V N 2.4V cÖ‡kœvËYi(sK) +i C2O22I(g) 23|
7. ms‡KvPkxjZv ¸Yv¼ Z > 1 n‡j K mgvYy L wÎgvwÎK ¯’vb 22. X(g) †KvbwU ˆZwi‡Z e¨enZ„ nq?
M¨v‡mi Rb¨ †KvbwU mwVK? M R¨vwgwZ N PvwµK
15. ˆebRvBj AÅvwmGUU ‰Õ¡vi ^vGK ˆKvbwUGZ? K wm‡g›U L KvMR
K AwaK ms‡KvPbkxj K cvKv Avbvi‡m L cvKv Kjv M BDwiqv N wPwb
L Kg ms‡KvPbkxj
M Av`k© N Ams‡KvPb †hvM¨ M †Rmwgb dzj N cvKv Kgjv 23. †KvbwU mwVK?
i. X M¨vm LPG Gi cÖavb Dcv`vb bq
8. GKwU Cu cvZ‡K 0.115 M Cu2+ Avq‡bi `ªe‡Y  Ab¨vb¨ + KCN CH3CH2CH2 
B ii. Y wk‡íi mv‡_ wmwjwmK GwmW hy³
Wzev‡j 25 C DòZvq Zvi mwVK wefe n‡e iii. Y Gi Kvu Pvgvj wn‡m‡e wK¬sKvi
H2O
Cl NaOH A + Ab¨vb¨ e¨en„Z nq
†KvbwU †hLv‡b Cu2+ cÉGk²vîailcKi 16 I 17 bs cÉGk²i Dîi `vI : wb‡Pi †KvbwU mwVK?
E Cu = + 0.34V

K + 0.34V L  0.312V 16. A Gi †ÿ‡Î †KvbwU mZ¨? K i I ii L i I iii
M + 0.3V N  0.34V K GK AvYweK wµqv †KŠkj N‡U
9. L mvB‡Rd mÎ~ cÖ‡hvR¨ n‡e M ii I iii N i, ii I iii
M GwU Av‡jvK mwµq †hŠM 24. mej Zwor we‡klø ¨ bq †KvbwU?
M¨vm AvYweK ZvcgvÎv Pvc fi eÅvcb AvqZb N gviKwbKf bxwZ m¤e¢ K H2SO4 L HF
fi nvi M NaOH N KCl
17. B †hŠ‡Mi kbv³Ki‡Y †KvbwU e¨en„Z nq? 25. 0.1M CuSO4 Gi 2L `ªe‡Y 5A we`¨y r 2
P M 30 C 1atm 0.2 r1 250 K ZnCl2(Abv`ª©) + Mvp HCl hr hver Pvjbv Kiv n‡j, Zwor we‡køl‡Yi
Q N 0.4 r2 mL

MÅvm `ywUi eÅvcb nvGii mwVK mÁ·KÆ ˆKvbwU? L Br2 + CCl4 Gi `ªeY ci, H `ªe‡Yi NbgvÎv KZ n‡e?
K r1 = r2 L r1 > r2 M NaHCO3 + P‡z bi cvwb
M r2 > r1 N r1 > r2 K 0.056 M L 0.065 M
N 2, 4  DNPH Gi `ªeY M 0.0056 M N 0.0065 M

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 K 2 M 3 N 4 L 5 K 6 K 7 L 8 L 9 N 10 M 11 L 12 N 13 K
14 L 15 M 16 N 17 M 18 N 19 L 20 L 21 M 22 M 23 K 24 L 25 N

ˆmU : K 28 exi‡kÖô bi~ †gvnv¤§` cvewjK K‡jR, XvKv welq ˆKvW : 1 7 7
mgq : 25 wgwbU cY~ ©gvb : 25
imvqb wØZxq cÎ eûwbe©vPwb Afxÿv

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. †KvbwU evqgy Їji kxZjZg GjvKv? wb‡Pi †KvbwU mwVK? 17. DÏxc‡Ki †cÖvcv‡bvb-2 †hŠM

K †g‡mv‡ùqvi L Avq‡bv‡ùqvi K i I ii L i I iii i. U‡UvgvwiZv †`Lvq

M Uª‡cv‡ùqvi N ÷ªv‡Uv‡ùqvi M ii I iii N i, ii I iii ii. A¨vjWj wewµqv cÖ`k©b K‡i
iii. K¨vwbRv‡iv wewµqv cÖ`k©b K‡i
2. 22g CO2 Gi Rb¨ Av`k©-M¨vm 11. Kvwe©j-cixÿv Øviv kbv³ Kiv hvq
mgxKiY †KvbwU?
†KvbwU? wb‡Pi †KvbwU mwVK?
K PV = nRT L PV=0.5RT
K 1 A¨vwgb K i I ii L i I iii
M PV = 2RT N PV=RT L 2 A¨vwgb
M 3 A¨vwgb M ii I iii N i, ii I iii
3. †KvbwU Kqjvi Rb¨ ÿwZKi? N A¨vgvBW
12. †db‡j wmMgv e܇bi msL¨v KZ? 18. B_vbj wewfbœ Ae¯’vq Mvp H2SO4 Gi
K Kve©b L bvB‡Uªv‡Rb
mv‡_ wewµqvq ˆZwi K‡i
M mvjdvi N wmwjKb
i. WvB B_vBj B_vi
4. wb‡Pi †KvbwU cÖwWDmvi M¨vm?
K 10 L 11 ii. Bw_b
K (C  H2) L (CO  N2) iii. B‡_b
M 12 N 13 wb‡Pi †KvbwU mwVK?
M (CO  H2) N (N2  H2)
13. 27 C ZvcgvÎvq O2 Gi RMS †eM
5. †KvbwU cví-†ccv‡i wewø Ps G‡R›U
KZ?
wn‡m‡e e¨envi Kiv nq? K i I ii L i I iii
K 453.23 m/s
K SO3 L NaOH M ii I iii N i, ii I iii
L 463.34 m/s
M Ca(OCl)Cl N Na2SO4 M 473.45 m/s 19. 3.5% NaHCO3 `ªe‡Yi †gvjvwiwU KZ?
N 483.56 m/s
6. cvwbi weï×Zvi gvb`Ð K 0.331 M L 0.4167 M
i. cvwbi LiZv †K›`ªvKl©x wewµqv
14. hyZ wewµqv cÖ`k©b M 0.5267 M N 0.8132 M
ii. cvwbi pH
iii. TDS gvb K‡i Na2S2O3 + I2  2NaI + Na2S4O6

20. wewµqvwU‡Z mvjdv‡ii RviY msL¨vi

wb‡Pi †KvbwU mwVK? i.  CHO cwieZ©b KZ?

K i I ii L i I iii ii.  COOH K + 0.5 L +1

M ii I iii N i, ii I iii iii.  CO  M +2 N + 2.5

7. †ebwR‡b Kve©b-Kve©b eÜb ˆ`N©¨ KZ? wb‡Pi †KvbwU mwVK? 21. KMnO4 ÿvixq gva¨‡g KZwU B‡j±ªb

K 0.123 nm L 0.139 nm K i I ii L i I iii MÖnY K‡i?

M 0.134 nm N 0.154 nm M ii I iii N i, ii I iii K3 L4

8. weDUvbj-2 ˆKvb aiGbi mgvYyZv 15. ˆKvbwU AÅvjwWnvBGWi gGZv agÆ M 5 N6

cÉ`kÆb KiGe? ˆ`Lvq? 22. Zwor we‡klø YKv‡j †KvbwU Av‡M

K U‡Uvgvi L Kvh©Kix gj~ K K †ebRwqK GwmW PvR©g³y n‡e?

M Av‡jvK N R¨vwgwZK L wg_vbwqK GwmW K Cu2+ L H+

9. ‰Õ¡vGii Av`-ËÆ weGklÏ GY Drc®² nq ˆKvbwU? M B_vbwqK GwmW M Pb2+ N Na+
N †cÖvcvbwqK GwmW
K A¨vjwWnvBW L ˆRe GwmW 23. d‡z qj †m‡j K¨v‡_v‡W †Kvb M¨vm

M A¨vgvBW N B_vi e¨envi Kiv nq?
10. SN1 wewµqvi †ÿ‡Î cÖ‡hvR¨  DÏxcKwU c‡o 16 I 17 bs cÖ‡kœi K H2
L water gas

i. `yB av‡c N‡U DËi `vI : M O2 N CO2

ii. mwµqZvi µg : 3RX>2RX> †hŠM (X) + [O]  †cÖvcv‡bvb-2 [O] 24. ˆKvbwU RviK I weRviK Dfq agÆ ˆ`Lvq?

K H2O2 L CuSO4
'Y' + CO2 + H2O
1RX>CH3X 16. M SO3 N KmnO4
wb‡Pi †KvbwU X †hŠM?
iii. wewµqvwU n¨v‡jv‡R‡bv A¨vj‡Kb I 25. wb‡Pi †KvbwU cÖgvY `ªeY?

wbDwK¬IdvB‡ji NbgvÎvi Dci K B_vbj L †cÖvcvbj-2 K 1M Na2CO3 L 1g H2SO4

wbfi© kxj M †cÖvcvb¨vj N B_vb¨vj M 1 mL H2SO4 N 1 mol H2S

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 K 2 L 3 M 4 L 5 M 6 N 7 L 8 M 9 L 10 K 11 K 12 N 13 N
14 L 15 L 16 L 17 K 18 K 19 L 20 K 21 K 22 K 23 M 24 K 25 K

m„Rbkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  29

mgq : 25 wgwbU 29 DËiv nvB ¯‹zj GÛ K‡jR, XvKv welq ˆKvW : 1 7 7
cY~ g© vb : 25
imvqb wØZxq cÎ eûwbe©vPwb Afxÿv

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. NO2 Gi AbyeÜx GwmW n‡jv 11. DÏxc‡Ki †hŠMwUi ˆewkó¨ n‡jv 18. wb¤œgv‡bi Kqjv †KvbwU?
K HNO3 L HNO2 K wjMbvBU L wcU
i. †hŠMwU‡Z sp msKiY we`¨gvb
M HNO2 N NO3
2. wg_vBj A‡i‡Äi eY© cwieZ©‡bi pH ii. †hŠMwUi cwjgvi †hŠM n‡jv M weUzwgbvm N A¨vb_ªvmvBU

cwimi †ebwRb 19. Kvwe©j A¨vwgb wewµqv Øviv kbv³ Kiv

K 35 L 68 iii. GUv B‡jKUªbvKlx© hyZ wewµqv †`q nq

M 8  10 N 10  12 wb‡Pi †KvbwU mwVK? i. cÖvBgvwi A¨vwjd¨vwUK A¨vwgb

3. wb‡¤œi †Kvb A‡ji IR eY©vwji K i I ii L ii I iii ii. cÖvBgvwi A¨v‡iv‡gwUK A¨vwgb

mvnv‡h¨ Kve©wbj gj~ K kbv³KiY Kiv M i I iii N i, ii I iii iii. †dbj

hvq? 12. 60 †m. ZvcgvÎvq 2% HgSO4 Ges wb‡Pi †KvbwU mwVK?
20% H2SO4 Gi Dcw¯’wZ‡Z
K 3600 cm1  3300 cm1 DÏxc‡Ki †hŠMwU cvwbi mv‡_ wewµqv K ii L ii I iii

L 1860 cm1  1660 cm1 K‡i wK Drcbœ K‡i? M i I iii N i, ii I iii

M 3600 cm1  2800 cm1 K wg_vb¨vj L wg_vbj 20. EZn/Zn2+ = 0.76V Ges EAg/Ag+ = +
N 1400 cm1  1100 cm1 M B_vb¨vj N B_vbj 0.799V Zwor †KvlwUi †gvU wefe

4. †KvbwU cigk~b¨ ZvcgvÎv? KZ?

K  273 C L  273 K 13. SATP †Z Aw·‡Rb M¨v‡mi RMS K 1.599V L 1.459V

M  25 C N 0 C †eM KZ? M 1.669V N 2.559V
5. ETP Gi cY~ ©iƒc †KvbwU?
K Effective Treatment Plant K 461.28 m s1 L 471.9 m s1 21. Av‡jvK mwµq wKš‘ G‡K Ac‡ii `c©Y
M 481.97 m s1 N 485.91 m s1
L Effective Tree Plantation cÖwZwe¤^ bq; Giƒc †hŠM‡K Kx e‡j?
M Effluent Treatment Plant 14. b¨v‡bv KYvi gvb KZ? K Wvqv‡÷wiIgvi L †g‡mv †hŠM

N Effluent Treatment Programme K 1  100 nm L 200  300 nm M †iwmwgK wgkÖY N GbvbwmIgvi
6. KvM‡Ri cÖavb Dcv`vb †KvbwU? M 350  400 nm N 450  600 nm
K wjMwbb L ÷vP© 15. 22. Kve©wbj g~j‡K Kve©b cigvY‡y Z †Kvb
nvB‡Wªv‡Rb dz‡qj †m‡j
M †mjy‡jvR N Kwz Ks wjKvi i. Kvh©`ÿZv 60% nvBweªWvB‡Rkb Av‡Q?
ii. R¡vjvwb wn‡m‡e nvB‡Wªv‡Rb M¨vm
7. †Kvb †Rvov jBm GwmW? K sp L sp2
M sp3 N sp3d
K H2O I AlCl3 L AlCl3 I BF3 e¨en„Z nq 23. †Kvb M¨vm؇qi e¨vc‡bi nvi mgvb?

M BF3 I NH3 N NH3 I AlCl3 iii. A¨vjKvwji NbgvÎv cwiewZ©Z K N2 I CO L C2H4 I CO2
†Kvb gj~ KwU †gUv wb‡`©kK? M N2 I O2 N CO I O2
8. _v‡K
9.
10. K  NHCH3 L  SO3H wb‡Pi †KvbwU mwVK?  wbGPi DóxcKwU co ‰es cieZxÆ

 M  OCH3 N  CH3 K i I ii L ii I iii cÉk²«¼Gqi Dîi `vI :
wm‡g›U Drcv`‡bi cÖavb KuvPvgvj
M i I iii N i, ii I iii CH2 = CHBr + HBr  Drcv`
†KvbwU? 24. DÏxc‡Ki wewµqvwU †Kvb ai‡bi?
 wbGPi DóxcKwU cGo 16 I 17 bs
K më †KK L Pzbvcv_i cÉGki² Dîi `vI :
M †mvWv A¨vk N Kv`vgvwU 16. K B‡jK‡UªvwdwjK cÖwZ¯’vcb
†WU‡ji cÖavb Dcv`v‡bi IUPAC 17. ˆmvWvjvBg
C6H5  COONa   A + Na2CO3 L B‡jK‡UªvwdwjK ms‡hvRb
A + CH3CH2CH2Cl Abv`ËÆ AlCl3 B + HCl
bvg M wbDwK¬IwdwjK cÖwZ¯’vcb

K 3 - †K¬v‡iv  4, 5- WvBwg_vBj †dbj N wbDwK¬IwdwjK ms‡hvRb
L 4  †K¬v‡iv  3, 5  WvBwg_vBj †dbj
M 3  †K¬v‡iv 2, 5  WvBwg_vBj †dbj A †hŠMwU n‡jv 25. wewµqvwU

N 8  †K¬v‡iv  3, 6  WvBwg_vBj †dbj K C6H5  COOH L C6H5  CH3 i. gviKwbK‡fi wbqg Abmy iY K‡i

wb‡Pi wPÎwU jÿ Ki Ges 11 I 12 M C6H6 N C6H5  OH ii. Am¤ú„³Zv kbv³Ki‡Y e¨en„Z nq

bs cÖ‡kœi DËi `vI : wb‡Pi †KvbwU Drcv` B-Gi bvg? iii. Øviv wØe܇bi Ae¯’vb wbY©q Kiv

K n-†cÖvcvBj †ebwRb hvq

L iso-†cÖvcvBj †ebwRb wb‡Pi †KvbwU mwVK?

M B_vBj †ebwRb Ki L ii
H H N wg_vBj †ebwRb
M ii I iii N i, ii I iii

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 L 2 K 3 L 4 K 5 M 6 M 7 L 8 L 9 L 10 L 11 N 12 M 13 M
14 K 15 L 16 M 17 K 18 L 19 K 20 K 21 K 22 L 23 K 24 L 25 K

30 ivRkvnx miKvwi gwnjv K‡jR, ivRkvnx welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. †dbj kbv³Kvix cixÿv †KvbwU? 11. 3 L †Kvb M¨v‡mi Pvc I ZvcgvÎv 19. Pvgovi †Kvjv‡Rb †cÖvwU‡bi mv‡_
h_vµ‡g wθY I wظY e„w× Ki‡j †Kvb avZwz U h³y n‡q Pvgovi wjs‡KR
K Kvwe©j A¨vwgb M¨vmwUi AvqZb n‡e

L †dnwjs `ªeY K2L L3L M6L N4L cY~ © K‡i _v‡K?

M wjevig¨vb cixÿv 12. mgf‡ii CH4 I H2 †K kb~ ¨cv‡Î 25 K Pb L Sb
C G ivLv n‡jv| H2 Gi AvswkK Pvc
N 2 : 4 DNP M As N Cr
†gvU Pv‡ci Ask n‡e
2. CClF2  CClF2 †hŠMwUi mswÿß bvg Kx? 20. ˆKvb MÅvjfvwbK ˆmGji ˆKvl wefe ˆewk?
3. K wd«qb-13 L wd«qb-114
K 8 L 1 M 1 N 16 K WªvB‡mj
M wd«qb-16 N wd«qb-17 9 9 2 17 L †jW-GwmW †mj
M nvB‡Wªv‡Rb dz‡qj †mj
wb‡Pi †KvbwU †m‡KÛvwi `l~ K? 13. †KvbwU RviK I weRviK Dfq wn‡m‡e

K SO2 L CO2 wµqv K‡i? N wjw_qvg Avqb †mj
M CO N SO3 K Cu2+ L Fe2+ M Ag+ N Zn2+

4. S2O23 + I2  S2O24 + I wewµqvwU‡Z  DÏxcKwU c‡o 14 I 15 bs cÖ‡kœi 21. A+, B2+ I C3+ Avq‡bi `ªe‡Y
i. S2O32 RviK
ii. I2 RvwiZ nq DËi `vI : c_„ Kfv‡e 1 F we`¨y r Pvjbv Ki‡j
i. 1 mol A+ PvR©gy³ n‡e
iii. S Gi RviY msL¨v ev‡o X(s) + Y2+(aq)  X2+(aq) + Y(s)
ii. 1 mol B2+ Rgv n‡e
X(s) / X2+(aq) = + 0.76 V Ges Y(s) /
Y2+(aq) = + 0.44 V
wb‡Pi †KvbwU mwVK? 14. A¨v‡bv‡Wi Zwor we‡kø‡l¨i ga¨ w`‡q 0.2
A we`¨y r 25 wgwbU hver Pvjbv Ki‡j Kx iii. 1 mol C3+ `ªeY n‡Z Zwo`Ø& v‡i
K i L ii
cwigvY avZz Rgv n‡e? (X = 65.38) 3

M iii N i, ii I iii mwÂZ n‡e
5. †UUªv _v‡qv‡bU Avq‡b †K›`ªxq cigvYyi K 0.6 MÖvg L 0.36 MÖvg
M 0.10 MÖvg N 0.06 MÖvg wb‡Pi †KvbwU mwVK?
Oxidation number KZ? DóxcGKi wewKÌqvi RbÅ mwVK Z^Å nj
15. i. Y cv‡Î X `ªeY ivLv hv‡e K i L i I iii
K +2 L +4 ii. X cv‡Î Y `ªeY ivLv hv‡e
iii. †Kvl wewµqv ¯^Ztù‚Z©fv‡e NU‡e M ii I iii N i, ii I iii
M + 2.5 N +6 wb‡Pi †KvbwU mwVK?
6. ˆWUGj eZÆgvb mwKÌq ŠRe ˆhŒMwU ˆKvb 22. †Kvb AvqbwU mn‡R PvR©g³y nq bv?
K i L ii
ˆhŒGMi RvZK? K Cu2+ L Au3+

K †ebwRb L †dbj M Ag+ N H+

M UjBy b N †K¬v‡iv‡ebwRb M i I iii N i, ii I iii 23. wb‡Pi †KvbwU b¨v‡bv KYvi cwimi‡K

7. wMømvwib kbv³Ki‡Y wbiæ`K 16. †KvbwU‡Z `ywU KvBivj Kve©b Av‡Q? †evSvq?

K KHSO4 L P2O5 K 2-nvBWªw· †cÖvcvbwqK GwmW K 0.074  0.53 nm
L weD‡Ub-2, 3-WvB-Aj L 1 nm  50 nm
M CaO N H2SO4 M 2-wg_vBj †cÖvcvbj-2 M 1 nm  100 nm
N weDUvbj-2 N 0.037  0.23 nm
 DóxcKwU cGo 8 I 9 bs cÉGk²i Dîi `vI :
17. R¨vwgwZK mgvYyZvi †ÿ‡Î
8. A (Avqib (iii) A·vBW) + HCl  B + i. wØ-eÜbh³y †hŠM n‡Z n‡e
ii. ci¯úi GbvbwmIgvi
H2O iii. KvBivj Kve©b _vK‡Z n‡e  DÏxcKwU c‡o 24 I 25 bs cÖ‡kœi
DËi `vI :
'A' †hŠ‡Mi A¤Zø ¡ KZ?

K3 L4 M5 N6 X [O] †cÖvcv‡bvb [O] Y + CO2 + H2O
 
9. 'B' †hŠ‡Mi `ªeY wb‡Pi †KvbwU mwVK?
24. X n‡jv
K A¤xø q L ÿvixq K i L i I iii
M ii I iii N i, ii I iii K B_vbj L †cÖvcvbj-2
M wbi‡cÿ N cÖkg
10. eRªcv‡Zi mgq †KvbwU wµqvkxj nq? 18. 25 cm KvPb‡ji 1g g‡y L HCl, 2q M †cÖvcvb¨vj N B_vb¨vj
g‡y L NH3 Gi mv‡_ XKz v‡j NH4Cl 25. Y Gi †ÿ‡Î †KvbwU mwVK?
i. N2 Gi †avu qv mw„ ó nq
K b‡ji gvSLv‡b
ii. O2 L 1g gyL †_‡K 15 cm K wgwó ¯^v`hy³
M 1g gyL †_‡K 10 cm L WvBgvi MVb K‡i
iii. CO2 M cvwb‡Z A`ªeYxq

wb‡Pi †KvbwU mwVK?

K i I ii L i I iii N 2q gLy †_‡K 12 cm N G÷vi †kÖwYi †hŠM
M ii I iii N i, ii I iii

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 M 2 L 3 N 4 M 5 M 6 L 7 L 8 N 9 K 10 K 11 K 12 K 13 K
14 N 15 N 16 L 17 K 18 M 19 N 20 N 21 L 22 N 23 M 24 L 25 L

m„Rbkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  31

31 Avj‡niv GKv‡Wwg ¯‹zj GÛ K‡jR, †eov, cvebv welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. Zxeª †mŠi wewKi‡Y x-ray Ges UV 9. i. R †hŠMwU A‡_©v-c¨viv wb‡`©kK 17. evsjv‡`‡ki cvwb‡Z Av‡m©wb‡Ki
ii. S GKwU kw³kvjx we‡ùviK c`v_© MÖnY‡hvM¨ gvÎv †KvbwU?
iwk¥i msNv‡Z †Kvb A‡j evqy
iii. Q cÖ¯‘wZi wewµqv‡K wd«‡Wj K .02 L .03
AvqwbZ nq? M .05 N .01
µvdU wewµqv e‡j
K †g‡mvgÐj L AvqbgÐj 18. wb‡Pi †KvbwU K¨v‡jv‡gj?
wb‡Pi †KvbwU mwVK?
M G‡·vgÐj N ÷ªv‡UvgÐj K KNO3 L Hg2Cl2
K i I ii L ii I iii M KCl N Na.Hg
2. CH2 = CH  C  N AY‡y Z 1 I bs
Kve©‡bi AiweUvj msKiY †KvbwU? M i I iii N i, ii I iii
10. 19. Av`k© M¨v‡mi ms‡KvPb ¸Yv¼, Z?
K sp2, sp2 L sp2, sp P / P2+ 7 Q2+ / Q †hLv‡b, K 1.0 L 2.0

M sp, sp N sp, sp2 E0P2+ / P =  2.36  . E0Q2+/Q =  M 3.0 N .5

3. wbGPi ˆKvb MÉ‚Gci meàwjB wbDwKÑIdvBj? 0.25  †Kv‡l e.m.f Gi gvb KZ?  DÏxcKwU c‡o 20 I 21 bs cÖ‡kœi
4. DËi `vI :
K CN, NH2, BF4 K + 2.61 L  2.61
5. L CN, OH, NH3
6. M HS, NH2, CX2 M + 2.11 N  2.11 H2O
N CH3COO, CN, H+ H+
11. d‡z qj †Kvl CH3CHO + HCN B + NH3

i. MÖvdvBU Kve©b A¨v‡bvW 20. B †hŠMwUi bvg wK?

(CH3)3 C  COOH ii. b¨v‡bv KYv cÖfveK K †cÖvcvbwqK GwmW

iii. CH3OH weRviK L UviUvwiK GwmW
wb‡Pi †KvbwU mwVK?
A †hŠMwU n‡jv M j¨vKwUK GwmW
K i I ii L i I iii
K (CH3)2 CHCH2C  CH N †cÖvcvbj-2
L (CH3)3C  C  CH M ii I iii N i, ii I iii
M (CH3)3C  C  C  CH3 12. 8.5% HCl `ªe‡Yi NbgvÎv KZ ppm? 21. DÏxcK Abmy v‡i
N (CH3)3C  C  C  (CH3)3 i. B †hŠMwU Av‡jvK mwµq
K 8  104 L 8.5  104
Pt, H2/H+ Gi mv‡_ K¨v‡_vW wnmv‡e M 4  104 N 4.5  104 ii. 1g av‡c wewµqvwU †K›`ªvKl©x hyZ
Dch³y bq †KvbwU?
13. 25 C ZvcgvÎvq †Kvb M¨v‡mi AvqZb wewµqv

1 L| M¨vmwUi ZvcgvÎv I Pvc wظY iii. B †hŠ‡Mi 2wU KbwdMv‡ikb m¤¢e

K Cu2+ / Cu L Hg2+ / Hg Kiv n‡j M¨v‡mi AvqZb KZ wjUvi? wb‡Pi †KvbwU mwVK?

M Au3+ / Au N Mg2+ /Mg K 0.542 L 5.24 K i I ii L ii I iii

M 5.42 N .01 M i I iii N i, ii I iii
14. †eqvi j¨v¤^v‡U©i m~Î †KvbwU mwVK? 22. SI GK‡K †evëRg¨vb aæª e‡Ki gvb
B †hŠMwU n‡jv KZ?
K log I =  Cl LC= A
K C2H5CH2COOH I0 l K 1.38  1023 L 1.92  1023
L CH3OC2H5
M CH3CH2CH2OH M log T =  Cl N log 1 = 1 M 2.53  1022 N 2.63  1022
N C2H5CH2CHO T  Cl
23. gvbe kix‡i wb‡¤œi †Kvb avZzi AvwaK¨
 DÏxcKwU c‡o 15 I 16 bs cÖ‡kœi i‡³ wn‡gv‡Mvø web Drcv`‡b evav cÖ`vb
DËi `vI : K‡i?
 DÏxcKwU c‡o 7  9 bs cÖ‡kœi DËi L Fe
`vI : X2SO4 h³y Rjxq `ªe‡Y Pt Zwo`&Øv‡ii K Pb N Cd
gva¨‡g 2 NÈv hver 14400 C PvR© cÖevwnZ M Cr

Kiv n‡jv| GLv‡b (X+  1S0) 24. CH3COOH P2O5 A + H3PO4

15. cvwbi AYy we‡kwø lZ n‡e KZwU? 

K 2.20  1023 L 2.25  1022 A †hŠMwU n‡jv

7. P †hŠM n‡e 16. M 2.3  1023 N 4.49  1022 K CH3CHO
i. X2SO4 Gi Abey Üx ÿviK HSO4 L CH3COOC2H5
K Ph  OH L Ph  NH2 ii. A¨v‡bv‡W O2 Rgv n‡e M (CH3CO)2O
N CH3CH2OH
8. M Ph  NC N Ph  NO2 iii. X2 Gi wMÖb nvDR cÖfve †bB
25. eZ©gv‡b AwaK nv‡i k¦vmKó †iv‡Mi
S †hŠMwU‡Z mÂviYkxj B‡jKUªb msL¨v
KqwU? wb‡Pi †KvbwU mwVK?
K i I ii L ii I iii Rb¨ wb‡¤œi †KvbwU `vqx?

K2 L4 M i I iii N i, ii I iii K SO2 L CO2
M N2C N CaO
M6 N8

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 L 2 N 3 L 4 L 5 N 6 L 7 N 8 M 9 N 10 M 11 L 12 L 13 K
14 L 15 N 16 K 17 N 18 L 19 K 20 M 21 N 22 K 23 K 24 M 25 K

32 miKvwi gwR` †g‡gvwiqvj wmwU K‡jR, Lyjbv welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. †KvbwU cÖvBgvwi ÷¨vÛvW© c`v_©? wb‡Pi †KvbwU mwVK? 16. n¨v‡jvdig wewµqvq Ask †bq

2. K Na2CO3 L KMnO4 K ii L i I iii i. CH3CHO
M HCl N Na2S2O3 N i, ii I iii ii. CH3CH2COCH3
3. Pvqbv †K¬ Gi ms‡KZ †KvbwU? M ii I iii
4. wibii‡.PCi H†K3CvbHwU2CmHwV2KO?H
5. K CaO.Al2O3 6SiO2  DÏxcKwU c‡o 11 I 12 bs cÖ‡kœi
L K2O.Al2O3 6SiO2 DËi `vI :
M Al2O3.Fe2O3.2H2O K i I ii L i I iii
N Al2O3 2SiO2.2H2O †kÖwY M ii I iii N i, ii I iii
chv© q 1 11 12 17. †KvbwU RviY-weRviY wewµqv?

†KvbwU †K›`ªvKl©x weKviK? 3q A K BaCl2 + H2SO4  BaSO4 + 2HCl
L AgNO3 + NaCl  AgCl + NaNO3
K AlCl3 L RMgX 4_© X D Z M Na2CO3 + 2CH3COOH 
+
M N SO3 A, X, D, Z cÖPwjZ A‡_© †Kvb cÖZxK bq|
CH3 11. DcGivÚ 1 bs ˆkÉwYi ˆgŒjàGjvi gGaÅ 
ˆKvbwU RviK weRviK Dfq wnmvGe AvPiY KGi?
2CH3COONa + CO2
N Br2 + H2S  2HBr + S
K H2C2O4 L O22 i. A Gi Mjbv¼ †ewk 18.
wb‡Pi †Kvb †Kvl ms‡KZwU mwVK?
M Fe3+ N S2O32 ii. A iwOb †hŠM MVb K‡i
K Zn(s)/ZnSO4(aq) 7 pt.H2(g)/H2SO4(aq)
FeCl3 `ªe‡Y †Kvb weKviK †hvM Ki‡j iii. A n¨vjvB‡Wi MjbvsK Kg L pt.H2(g)/H2SO4(aq) 7 Zn(s)/ZnSO4(aq)
jvj eY© nq? M Zn(s)/ZnSO4(aq) 7 /H2SO4(aq)/H2(g).pt
wb‡Pi †KvbwU mwVK? N pt.Zn(s)/ZnSO4(aq) 7 H2SO4(aq)/H2(g)
L †bmjvi `ªeY
K NH4OH K i I ii L i I iii 19. wbGPi ˆKvb ˆRvGoi RÅvwgwZK AvK‡wZ ‰KB?

6. M K4[Fe(CN)6] N NH4CNS M ii I iii N i, ii I iii
7. 15 C ZvcgvÎv 5g AgCl 50 mL
12. RwUj †hŠM MV‡b  K BF3 I NH3 L BF3 I AlCl3
weï× cvwb‡Z `ªexf‚Z †_‡K m¤ú³„ i. A Aÿg M BeF2 I H2O N BCl3 I PCl3
20. †KvbwU AvKv‡i †QvU?
`ªeY ˆZwi K‡i| `ªe‡Yi ZvcgvÎv 75 ii. D GK‡hvRx Ae¯’vq PZ¯z jÍ Kxq AvKw… Zi

C G DbœxZ Kiv n‡jv| 75 C G H iii. Z ïaygvÎ PZz¯ÍjKxq AvK…wZi K N3 L F

`ªe‡Yi `ªve¨Zv 20| 75 C ZvcgvÎvq wb‡Pi †KvbwU mwVK? M Na+ N Mg2+
21. ˆRe Kvh©Kix gj~ Kmg~‡ni IR †kvlY
Av‡iv wK cwigvY `ªe¨ †hvM Ki‡j K i I ii L i I iii Zi½ msL¨vi mxgv KZ?

Aat‡ÿc co‡e bv? M ii I iii N i, ii I iii

K5g L 4.1 g 13. ˆKvbwUi gGaÅ Av¯¦tAvYweK AvKlÆY ej Kg? K (400  4000) cm1
M 6g N 10 g L (400  4000) nm1
1  103 M Na2CO3 Gi ppm GK‡K K HCl L H2O M (1000  4000) cm1
NbgvÎv KZ? M SO2 N CO2 N (3200  3600) cm1

K 10600 L 106  DÏxcKwU c‡o 14 I 15 bs cÖ‡kœi 22.  312 n12,
DËi `vI : U
M 1 N 106000 = RH  n = 4, 5, 6 .........

8. GKwU †hŠ‡M A, B I C Gi RviY BZ¨vw`| GB mgxKiYwUi Rb¨ †Kvb
msL¨v h_vµ‡g + 2, + 5,  2|
iwk¥ cvIqv hvq?
†hŠMwUi m¤¢ve¨ ms‡KZ †KvbwU?
Y Rvi‡Yi d‡j A¨vjwWnvBW cvIqv K †e¸wb L `k„ ¨gvb
K A3(B4C)2 L ABC2 N †iwWI I‡qf
M A3(BC4)2 N A3(BC3)2 hvq Ges X ms‡hvRb wewµqv †`q| M IR
23. GKwU bgby v‡K †¯ú‡±ªvwgUv‡ii 1 cm
9. †µvgv‡UvMÖvwd Kiv nq hLb wgkÖ‡Yi 14. wewµqv `ywUi g‡a¨  †m‡j ¯’vb Ki‡j wbw`©ó Zi½ ˆ`‡N¨©
15.
Dcv`vb¸‡jvi i. 1 bs wewµqvi gva¨‡g A¨vj‡Kvnjxq Av‡jvi 80% UªvÝwgU K‡i| H Zi½

i. cwigvY Ley Kg _v‡K ii. 2 bs wewµqvi gva¨g Rjxq ˆ`‡N¨© bgybvi †gvjvi A¨veRc©wUwfwU
ii. `ªve¨Zvi cv_©K¨ †ewk _v‡K
iii. ùzUbv¼ Ley KvQvKvwQ nq iii. B †hŠMwUi A¨vjwWnvBW 2.5 n‡j bgby vi NbgvÎv KZ?

wb‡Pi †KvbwU mwVK? K 0.455 mol L1 L 0.25 g L1

wb‡Pi †KvbwU mwVK? K i I ii L i I iii M 0.039 mol L1 N 0.033 mol L1
M ii I iii N i, ii I iii
K ii L iii wb‡Pi †KvbwU mwVK? 24. †KvbwU DbœZ gv‡bi Kqjv?
K wjMbvBU L A¨vb_vª mvBU
M i I iii N i, ii I iii K 2 bs wewµqv `By av‡c N‡U
L Dfq‡ÿ‡Î KOH wbDwK¬IdvBj
10. C4H8 mij wkKj †hŠMwUi M wcU N weUzwgbvm
i. †PBb mgvYy m¤¢e 25. †cÖvwWDmvi M¨vm †KvbwU?
M 2 bs wewµqvq KOH wbDwK¬IdvBj
ii. R¨vwgwZK mgvYy m¤¢e N Y †hŠMwU jyKvm weKvi‡Ki mv‡_ AwZ mwµq K 2 CO + N2 L CO + H2
iii. KvBivj Kve©b we`¨gvb M CO + O2 N CO + H2O

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 K 2 N 3 L 4 L 5 N 6 N 7 L 8 M 9 K 10 K 11 L 12 L 13 K
14 K 15 L 16 K 17 N 18 M 19 L 20 N 21 M 22 M 23 M 24 L 25 K

mR„ bkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  33

33 Lyjbv cvewjK K‡jR, Ljy bv welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv cY~ ©gvb : 25

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. CuSO4 `ªe‡Yi g‡a¨ 500 mA Zwor wb‡Pi †KvbwU mwVK? 17. ETP Kx?

cÖevn 1.0 NÈv a‡i Pvjbv Ki‡j Kx K i I ii L i I iii K evqy `~lY c×wZ

cwigvY Kcvi (g) Rgv n‡e? M ii I iii N i, ii I iii L cvwb `~lY †_‡K gwy ³

K 5.5222 L 5.7222 11. Zn  Hg M `~lYgy³ cwi‡ek
N wkí eR©¨ cwi‡kvab
M 5.8222 N 0.59222 CH3  CO  CH3  B + H2O2 18. †KvbwU cÖvBgvwi wb‡`©kK Zwo`Øvi?
HCl
2. wb‡Pi †KvbwU AwaK ÿviag©x? K K¨v‡jv‡gj Zwo`Ø& vi
B n‡”Q L Ag/AgCl Zwo`Ø& vi
K R  NH2 L R2NH M Zn Zwo`Ø& vi
K B_vb¨vj N nvB‡Wªv‡Rb M¨vm Zwo`Ø& vi
M R3N N C6H5  NH2
L †cÖvcvb¨vj
3. AMÖMY¨ gj~ K †KvbwU?
M †cÖv‡cb
K  NHR L  CHO

M  COOH N  CO  N †cÖvcvbwqK GwmW
4. gLy ¨ wb‡`©kK Zwo`Øvi wn‡m‡e e¨en„Z 12. A¨vj‡Kvnj‡K †Kvb weKvi‡Ki 19. Pvgov U¨vwbs KZ cÖKvi?
K3 L4
nq †KvbwU? mvnv‡h¨ kbv³ Kiv nq? M5 N6

K cÖgvY nvB‡Wªv‡Rb Zwo`Øvi K Na L Mg 20. F Zwor cÖevn Øviv wb‡Pi †Kvb

L K¨v‡jv‡gj Zwo`Øvi M FeCl3 N Br2 cvwb avZwz Ui 1 MÖvg/†gvj PvR©g³y n‡e?

M M¨vm Zwo`Øvi 13. 0.1 M NbgvÎvi Na2CO3 `ªeY K MwjZ NaCl
N K¨vWwgqvg i. 1.06% WV L NaCl -Gi Rjxq `ªeY
5. ˆewk¦K DòZv m„wó‡Z cÖavb f‚wgKv M CuSO4 -Gi Rjxq `ªeY
N AlCl3 -Gi Rjxq `ªeY
iv‡L †KvbwU? ii. 10600 ppm 21. b¨v‡bv KYvi AvKvi KZ?

K CO2 L CFC iii. 10.6  106 ppb

M Rjxq ev®ú N I‡Rvb wb‡Pi †KvbwU mwVK? K 1  100 nm L 100  200 nm
M 200  300 nm N 300  400 nm
6. evqygЇji I‡Rvb¯Íi †KvbwU? K i I ii L i I iii
7. M ii I iii N i, ii I iii 22. †Kvb Dcv`vbwUi Kvi‡Y wm‡g›U RgvU
8. K Uª‡cvwùqvi L ÷ªv‡Uvwùqvi
M †g‡mvwùqvi N _v‡g©vwùqvi 14. cÖvBgvwi ÷¨vÛvW© c`v_© n‡”Q euvav ax‡i N‡U?
wb‡Pi †KvbwU AbyeÜx GwmW ÿviK
K KMnO4 L NaOH K CaSO4. 2H2O L 3CaO.SiO2
hyMj bq? M CaO.Al2O3
M K2Cr2O7 N Na2S2O3 N Al2O3.Fe2O3.CaO
K NH3, NH4+ L H2SO4, HSO4
M HNO3, NO3 N HCl, OH  DÏxcKwU c‡o 15 I 16 bs cÖ‡kœi 23. KvP Drcv`‡b cÖavb Kvu Pvgvj
i. evwj
C4H8 †hŠ‡M KZwU mgvYy Av‡Q? DËi `vI :
ii. †mvWvA¨vk
K1 L2 2CuSO4 + 4Kl = Cu2I2 + 2K2SO4 + I2
M3 N4
15. Dc‡ii wewµqvi †ÿ‡Î

9. Av‡qv‡Wvdig wewµqv †`q bv i. CuSO4 RviK Ges KI weRviK iii. më †KK

i. HCHO ii. K Gi RviY msL¨vi cwieZ©b nqwb wb‡Pi †KvbwU mwVK?

ii. CH3OH iii. 2wU B‡jKUª‡bi Av`vb-cÖ`vb N‡U‡Q K i I ii L i I iii

iii. CH3CHO wb‡Pi †KvbwU mwVK? M ii I iii N i, ii I iii

wb‡Pi †KvbwU mwVK? K i I ii L i I iii 24. †KvbwU RviK weRviK Dfqiƒ‡c wµqv

K i I ii L i I iii M ii I iii N i, ii I iii K‡i?
M ii I iii N i, ii I iii
10. gviKwbKf bxwZ AbymiY 16. Dc‡ii wewµqvq Drcbœ I2 †K †h K KI L H2C2O4
cÖgvY `ªeY Øviv UvB‡Uªkb K‡i Cu2+
K‡i M NaS2O3 N H2O2

ms‡hvRb wewµqv †`q cwigvY wbY©q Kiv nq Zv nj 25. mgAvqZ‡bi NaOH I H2SO4

i. CH3  CH2  CH = CH2 `ªe‡Yi cÖK…wZ Kx n‡e?
ii. CH3,  CH = CH2
iii. CH3  CH = CH  CH3 K KMnO4 L K2Cr2O7 K Dfqag©x L wbi‡cÿ
M Na2S2O3
N A·vwjK GwmW M A¤xø q N ÿvixq

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 N 2 L 3 M 4 K 5 K 6 L 7 N 8 N 9 K 10 K 11 M 12 K 13 N
14 M 15 L 16 M 17 N 18 N 19 K 20 L 21 K 22 K 23 K 24 N 25 M

ˆmU : M 34 Kzwgjøv wmwU K‡jR, Kzwgjvø welq ˆKvW : 1 7 7
mgq : 25 wgwbU c~Y©gvb : 25
imvqb wØZxq cÎ eûwbe©vPwb Afxÿv

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. Fe3O4 G Fe Gi RviY gvb KZ? 11. †KvbwU Kqjvi ¸YMZ gvb e„w× K‡i? 18. A¨v‡gvwbqvhy³ AgNO3 `ªeY Øviv
K A¨vk L DØvqx c`v_© wb‡Pi †KvbwU kbv³ Kiv hvq?
K 2 L + 2.67
M + 2.3 N +6
M wd·W Kve©b N mvjdvi K A¨vj‡Kb
 wb‡¤œv³ DÏxcK n‡Z 2 I 3 bs cÖ‡kœi 12.  CONH gj~ ‡K we`¨gvb C  N L A¨vj‡Kvnjxq nvB‡Wªvw·j gj~ K
DËi `vI : eÜbwU Kx? M A¨vjwWnvBW

K †ccUvBW N A¨vjKvBb
19. †KvbwU‡Z we`y¨r Drcbœ nq bv?
L -MøvB‡KvmvBwWK

2. DÏxc‡K CO2 M¨v‡m AYyi msL¨v KZ? M-MøvB‡KvmvBwWK K Zwor we‡køl¨ †Kvl
3.
K 3.01  1023 L 6.023  1023 N G÷vwiK L †jW mÂvqK †Kvl
13. 28g N2 M¨v‡mi Rb¨ f¨vÛvi Iqvjm
M 12.044  1023 N 18.066  1023 mgxKiY †KvbwU? M wjw_qvg e¨vUvwi
H2 M¨v‡mi AvswkK Pvc KZ? N M¨vjfvwbK †Kvl

K 0.083 atm L 0.83 atm KP  2Vn (V  2b) = 2RT 20. eªb‡÷W-jvDix GwmW n‡jv
M 1.7 atm N 8.3 atm
L P  nV2a2  (V  nb) = nRT i. H3O
4. †KvbwU U‡UvgvwiRg cÖ`k©b K‡i? ii. NH4
K †cÖvcvbj L †cÖvcv‡bvb iii. H2O
M P  Va2 (V  b) = RT
M B_vbj N weDwUb wb‡Pi †KvbwU mwVK?

5. 2Fe2 + Sn4  2Fe3  Sn2 K i I ii L i I iii

Dc‡ii wewµqvwU‡Z N P  Va2 (V  b) = nRT M ii I iii N i, ii I iii

i. Fe2 RvwiZ n‡q‡Q  wb‡¤œv³ DÏxcK n‡Z 21 I 22 bs

ii. SN4 weRviK  wb‡¤œv³ DÏxcK n‡Z 14 I 15 bs cÖ‡kœi DËi `vI :
cÖ‡kœi DËi `vI :
iii. Fe3 GKwU B‡jKUªb MÖnY K‡i‡Q 2R  X  2Na ÷Ó• B^vi R  R  2Nax

wb‡Pi †KvbwU mwVK? CH3  CH2  Cl  KOH(aq)  X  KCl 21. wewµqvwU Kx bv‡g cwiwPZ?

K i I ii L i I iii 14. wewµqvwU K DU©R wdwUM L wd«‡Wj µvdU
15.
6. M ii I iii N i, ii I iii K GK AvYweK †K›`ªvKl©x cÖwZ¯’vcb M DU©R N †Kve
7. 16. L †K›`ªvKl©x hyZ
10 mL 0.15 M Na2S2O3 `ªe‡Yi ppm KZ? M B‡jK‡UªvwdwjK cÖwZ¯’vcb 22. wewµqvwUi †ÿ‡Î
8. N AcmviY
9. K 2.37 L 23.7 i. we‡Rvo Kve©‡bi A¨vj‡Kb Drcbœ nq
M 237000 N 23700
ii. me mgq †Rvo Kve©‡bi A¨vj‡Kb
R2NH  NHO2  X  N2  H2O;
X Drcbœ nq
'X' n‡jv
i. Nb H2SO4-Gi mv‡_ wewµqvq iii. wg‡_‡bi ms‡kølY Am¤¢e
K eY©nxb M¨vm A¨vjwKb Drcbœ K‡i
L njy` ˆZjv³ †hŠM wb‡Pi †KvbwU mwVK?
M `ªexfZ‚ jeY
N eY©nxb Zij ii. jKy vm weKvi‡Ki mv‡_ ZrÿYvr K i I ii L i I iii
Kwz Ks wjKvi Kx? wewµqv K‡i
M ii I iii N i, ii I iii
23. Pvgov wk‡í U¨vbvix e‡R©¨ Dcw¯’Z
iii. Av‡qv‡Wvdg© wewµqv †`q ÿwZKiY Dcv`vb †KvbwU?
K Na2SO4 I CaSO4 Gi wgkÖY wb‡Pi †KvbwU mwVK?

L Na2S I Na2CO3 Gi ÿvixq wgkÖY K i I ii L i I iii K As L Pb
M KvP wk‡í e¨enZ„ GKwU wgkÖY M Ni N Cr
N GKwU A¤xø q wgkÖY M ii I iii N i, ii I iii 24. A¤xø q `ªe‡Y K2Cr2O7 wewµqvKv‡j
KqwU B‡jKUªb MÖnY K‡i?
GKwU cyK‡z ii cvwbi DO gvb 4.0, CuSO4 `ªe‡Yi ga¨ w`‡q 0.16A we`¨y r

40 wgwbU Pvjbv Kiv n‡j K¨v‡_v‡W K 6wU L 5wU

cvwbwU n‡jv KZ MÖvg Kcvi mwÂZ n‡e? M 3wU N 1wU

K weï× cvwb L `w~ lZ cvwb K 0.126 g L 0.147 g 25. wb‡Pi †KvbwU avZ-z avZe Avqb
M 0.189 g N 0.216 g
M g„`y cvwb N Li cvwb 17. wb‡Pi †KvbwU KvP? Zwo`Ø& v‡ii D`vniY?
10. Fe/Fe2 A¨v‡bvW n‡j, wb‡Pi †KvbwU
K¨v‡_vW wn‡m‡e e¨envi Kiv hv‡e? K K2O.Al2O2.6SiO2 K Ag(s), AgCl(s)/NaCl(aq)
L K2SO4.Al2(SO4)3. 24H2O L Hg(l), Hg2Cl2(s)/KCl(aq)
K Zn/Zn2 L Mg/Mg2 M CaCO3  MgCO3 M Ag(s)/AgNO3(aq)
M Al/Al3 N Au/Au3 N Pt(s), Fe2(aq)/Fe3(aq)
N Na2O.CaO(a  b)SiO2

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 L 2 M 3 N 4 L 5 L 6 N 7 L 8 L 9 K 10 N 11 M 12 K 13 M
14 K 15 L 16 K 17 N 18 M 19 K 20 N 21 M 22 M 23 N 24 K 25 M

m„Rbkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  35

mgq : 25 wgwbU 35 bIqve dqR‡y bœQv miKvwi K‡jR, jvKmvg, Kzwgjøv welq ˆKvW : 1 7 7
cY~ ©gvb : 25
imvqb wØZxq cÎ eûwbe©vPwb Afxÿv

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. mvbw¯µb †jvk‡b b¨v‡bvKYv wn‡m‡e 11. A †hŠMwU 20. Kvwe©j A¨vwgb cixÿv †`q

e¨en„Z nq i. †evª wg‡bi jvj eY© bó K‡i i. CH3NH2

i. ZnO ii. B‡jK&‡UªvwdwjK ms‡hvRb wewµqv †`q ii. CH3NHCH3

ii. TiO2 iii. nvB‡Wªv‡Rb †hv‡M A¨vj‡Kvnj iii. ArNH2

iii. Al2O3 Drcbœ K‡i wb‡Pi †KvbwU mwVK?

wb‡Pi †KvbwU mwVK? wb‡Pi †KvbwU mwVK? K i I ii L i I iii

K i I ii L i I iii K i I ii L i I iii M ii I iii N i, ii I iii

M ii I iii N i, ii I iii

2. †KvbwU ejq mwµqKvix g~jK? M ii I iii N i, ii I iii 21. cÖgvY `ªeY †KvbwU?

K  CN L  NH2 12. b¨v‡bv KYvi AvKvi KZ? K 1 M HCl L 1 g HCl

M  COOH N  CHO K 106 m L 107 m M 1 mL HCl N 1 mole HCl

3. wd«qb  12 Gi ms‡KZ †KvbwU? M 108 m N 109 m  DÏxcKwU c‡o 22 I 23 bs cÖ‡kœi

K CF3Cl L CFCl3 13. SATP †Z Aw·‡R‡bi RMS †eM DËi `vI :

M CF2Cl2 N ClF2C  CF2Cl KZ? Na2S2O3 + I2 = Na2S4O6 + NaI

4. †dnwjs `ªeY †KvbwUi mv‡_ wewµqv K 461.28 ms1 L 871.98 ms1 22. Drcv‡`i †Kvb †gŠ‡ji RviY msL¨v
5.
6. K‡i jvj Aat‡ÿc m„wó K‡i? M 481.97 ms1 N 485.91 ms1
7.
8. K R  CO  R L R  O  R 14. IqvUvi M¨vm †KvbwU? 2.5? LS
K Na NI
M CH3  COOH N R  CHO K CO + H2 L 2CO + N2 MO
M CO + 3H2 N CO + O2
eø¨vK wjKv‡ii eY© †KvbwU?

K Kv‡jv L ev`vwg 15. †m‡KÛvwi †idv‡iÝ Zwo`Ø& vi 23. DÏxc‡Ki †ÿ‡Î
i. I2 RviK
M meRy N jvj i. Pt, H2(1 atm) / H+ (1M) ii. Na2S2O3 weRviK
ii. Ag(s), AgCl(s)/ HCl(aq) iii. Na2S4O6 Gi weRviY N‡U‡Q
†KvbwU H2O Gi Abey Üx ÿvi? wb‡Pi †KvbwU mwVK?

K H+3O L H+ iii. Hg(l), Hg2Cl2(s)/ KCl(aq)

M OH N OH wb‡Pi †KvbwU mwVK?

wb‡Pi †KvbwU †m‡KÛvwi ÷¨vÛvW© K i I ii L i I iii

c`v_©? M ii I iii N i, ii I iii K i I ii L i I iii
M ii I iii N i, ii I iii
K Na2C2O4 L HCl 16. wb‡Pi †KvbwU †m‡KÛvwi `~lK?

M H2C2O4 N Na2CO3 K CO2 L CO 24. jeY †mZ‡z Z e¨enZ„ nq

†ebwR‡b KqwU wmMgv eÜb Av‡Q? M SO2 N O3 i. KCl

K6 L8 17. wb‡Pi †KvbwU jyBm ÿvi? ii. KNO3

M 10 N 12 iii. NH4NO3

9. wb‡Pi †KvbwU U‡UvgvwiZv cÖ`k©b K‡i? K BF3 L FeCl3 wb‡Pi †KvbwU mwVK?
K wg_w· †cÖv‡cb M AlCl3 N NF3

L N - wg_vBj B_vbvgvBW 18. r1/r2 Gi gvb 1.5 n‡j d1/d2 Gi K i I ii L i I iii

M †cÖvcvb¨vj gvb KZ? M ii I iii N i, ii I iii

N †c›Uv‡bvb-3 K 1.5 L 0.667 25. †cvU©j¨vÛ wm‡g‡›Ui cÖavb Dcv`vb

 wb‡Pi DÏxcKwU co Ges 10 I 11 bs M 0.816 N 1.2 i. CaO

cÖ‡kœi DËi `vI : 19. Av‡jvK mwµq †hŠM †KvbwU? ii. SiO2
iii. Al2O3
RCH2CH2X + KOH(alc)  A + H2O K A¨vwmwUK GwmW
wb‡Pi †KvbwU mwVK?
10. A †hŠMwU Kx? L diwgK GwmW

K A¨vj‡Kvnj L A¨vj‡Kb M j¨vKwUK GwmW K i I ii L i I iii
M ii I iii N i, ii I iii
M A¨vjwKb N A¨vjKvBb N †g‡mv UviUvwiK GwmW

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 K 2 L 3 M 4 N 5 L 6 M 7 L 8 N 9 N 10 M 11 K 12 N 13 M
14 K 15 M 16 N 17 N 18 L 19 M 20 L 21 K 22 L 23 K 24 N 25 N

ˆmU : K 36 evsjv‡`k †bŠevwnbx K‡jR, PÆMÖvg welq ˆKvW : 1 7 7
mgq : 25 wgwbU cY~ ©gvb : 25
imvqb wØZxq cÎ eûwbe©vPwb Afxÿv

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. evqgy Їji kxZjZg ¯Íi n‡”Q 9. ZvcgvÎvi mv‡_ Pv‡ci m¤úK© 18. Kqjvi †ewk ÿwZKviK Dcv`vb

K Uª‡cvwùqvi L ÷ª¨v‡Uvwùqvi K eM©g~‡ji mgvbycvwZK †KvbwU?

M †g‡mvwùqvi N _v‡g©vwùqvi L eM©g~‡ji e¨¯vÍ bcy vwZK KC LS

2. †KvbwU AvjwWnvBW I GwmW Dfq M mgvbycvwZK N e¨¯vÍ bcy vwZK M H2O NN

10. 2 A¨vj‡Kvn‡ji †ÿ‡Î OH cÖmviY 19. †Kvb Kqjvi gvb fv‡jv

wn‡m‡e wµqv K‡i? e¨vÛ KZ cm1? K weUwz gbvm L wcU

K CH3CHO L HCHO K 3600 L 3610 M wjMbvBU N A¨vb_ªvmvBU
M HCOOH N CH3COOH
M 3620 N 3630 20. †gUv wb‡`©kx gj~ K n‡”Q

 DÏxcKwU c‡o 3 I 4 bs cÖ‡kœi DËi 11. 1 mol KClO3 n‡Z STP-†Z K‡Zv i.  CN
`vI : LO2 cvIqv hvq?
ii.  NO2
iii.  CHO

CCl4 I‡RvbvBW Av`ËÆ weGkÏlY K 224 L 336 wb‡Pi †KvbwU mwVK?
M 448 N 672
A + O3  K i I ii L i I iii
Zn
12. †KvbwU RviK I weRviK Dfq wn‡m‡e M ii I iii N i, ii I iii
MøvBA·vj
wµqv K‡i?  DÏxcKwU c‡o 21 I 22 bs cÖ‡kœi
A A¨vwj‡dwUK †hŠM Ges †Mv‡Îi 1g DËi `vI :
m`m¨| K Fe L Zn2+
M Sn2+ N Cu2+ Fe + NiSO4  FeSO4 + Ni
3. A †hŠ‡Mi †K›`ªxq cigvY‡y Z Kx ai‡bi 13. NaOH + Cl2  NaCl + NaClO +
†jvnv I wb‡K‡ji cÖgvY weRviY wefe

msKiY nq? H2O. h_vµ‡g  0.44 I  0.25.

K sp L sp2 i. Cl Gi RviY N‡U 21. DÏxc‡Ki †Kv‡li emf KZ?

M sp3 N sp3d ii. OH-Gi weRviY N‡U K + 019 L + 069

4. A †hŠ‡M cvB B‡jKUªb KqwU? iii. Cl Gi weRviY N‡U M  019 N  069
wb‡Pi †KvbwU mwVK? 22. DÏxc‡Ki je‡Yi `ªeYØq †Kvb cv‡Î
K2 L4
K i L i I ii ivLv hv‡e?
M6 N8
M iii N i I iii i. Pb
5. †Kvb †hŠ‡M bvBUªvBj g~jK we`¨gvb? ii. Cu
14. 1 ppm = KZ? iii. Zn
K KCNS L CH3CNO
K gL1 L mgL1 wb‡Pi †KvbwU mwVK?
M CH3NO2 N CH3CN
M mgmL1 N gmL1 K i L i I ii
6. A¤aø g© cÖ`kb© K‡i
15. weÁvbxiv †KvbwUi Rb¨ †bv‡ej M ii N iii
i. †dbj 23. 2g H2 M¨vm Rgv Ki‡Z K‡Zv we`¨y r
ciy ¯‹vi jvf K‡ib?

ii. weDUvBb-2 K WªvB‡mj L †jW mÂqx †mj cÖ‡qvRb?

iii. †cÖvcvBb M d‡z qj †mj N wjw_qvg Avqb †mj K 05 F L1F
wb‡Pi †KvbwU mwVK? M 2F N 4F
K i L i I ii 16. d‡z qj †m‡j Zwor we‡køl¨ wn‡m‡e 24. †Kvb c×wZ‡Z wg_vb¨vj‡K
e¨en„Z nq mivmwi

K H2SO4 L KOH wg‡_‡b cwiYZ Kiv hvq?

M i I iii N i, ii I iii M NaCl N NH4Cl K wd«‡Wj µ¨vdU
L DU©R
7. STP †Z O2 M¨v‡mi NbZ¡ K‡Zv gL1? 17. gЇK KvM‡R iƒcvšÍ‡ii avc M wK¬‡gbmb weRviY
N A¨vjWj Nbxefb
K 143 L 128 i. wcKwjs

M 112 N 102 ii. wewUs 25. RBy Uvi Avqb MVb Ki‡Z cv‡i
K A¨vgvB‡bv GwmW
8. GKB ZvcgvÎv I Pv‡c H2 I O2 Gi iii. widvBwbs L j¨vKwUK GwmW
M †ebRvwqK GwmW
rms †e‡Mi AbycvZ K‡Zv? wb‡Pi †KvbwU mwVK? N A¨vwbwjb

K 4:1 L 16 : 1 K i I ii L i I iii

M 1:4 N 1 : 16 M ii I iii N i, ii I iii

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 M 2 M 3 K 4 L 5 N 6 M 7 K 8 K 9 M 10 N 11 L 12 M 13 N
14 L 15 N 16 L 17 M 18 L 19 N 20 N 21 K 22 L 23 M 24 M 25 K

m„Rbkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  37

mgq : 25 wgwbU 37 we G Gd kvnxb K‡jR, PÆMÖvg welq ˆKvW : 1 7 7
c~Y©gvb : 25
imvqb wØZxq cÎ eûwbe©vPwb Afxÿv

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. ZvcgvÎvi mv‡_ AvqZb cwieZ©bkxj 9. †KvbwU B‡j‡±ªvdvBj wn‡m‡e KvR 19. CuSO4 `ªe‡Yi ga¨ w`‡q 016 Amp

nq †Kvb m‡~ Î? K‡i? we`y¨r 40 min Pvjbv Kiv n‡jv|

K e‡q‡ji L Pvj©‡mi K NH3 L H2O K¨v‡_v‡W mwÂZ Kcvi cigvYy msL¨v

M Wvë‡bi AvswkK Pvc M AlCl3 N OH KZ? [Cu = 635]

N MÖvnv‡gi evcb m~‡Î 10. wb‡Pi †KvbwU R¨vwgwZK mgvYZy v K 1198  1021 L 1342  1021
M 1546  1021 N 1921  1021
2. †Kvb c×wZ‡Z Kve©b wkKj n«vm Kiv cÖ`k©b K‡i?

hvq? K ClCH = CHCl L CH2 = CHCl 20. †Kvb RvZxq e‡R©i Rb¨ ETP e¨envi

K DU©R wewµqv M CH2 = CH2 N Cl2C = CH2 Kiv nq?

L DU©R wdwUM wewµqv 11. H2S + Cl2 = S + 2HCl wewµqvwU‡Z K KwVb L Zij

M Kvwe©j Avwgb wewµqv †KvbwU RviK c`v_©? M M¨vmxq N ajy v RvZxq

N wWKve©w·‡jkb wewµqv K H2S L Cl2  DÏxcKwU c‡o 21 I 22 bs cÖ‡kœi
3. AvwR©‡jwmqvm `ªe¨ †KvbwU? MS N HCl DËi `vI :

K Pybvcv_i L Pbz 12. 200 ppm H2SO4 Gwm‡Wi †gvjvi RCOCl + NH3  A Br2 + KOH B
M A¨vjwy gbv N wRcmvg
NbgvÎv KZ †gvjvi?

4. jyBm A‡¤iø GKwU D`vniY n‡jv K 204  103 L 2  103 21. DÏxc‡Ki 'A' †hŠMwU n‡jv

†KvbwU? M 005 N 00012 K RCONH2 L RCHO
M RCN N RCOOH
K BCl3 L NH3 13. K4[Fe(CN)6] RwUj †hŠ‡M Fe Gi

 RviY msL¨v KZ? 22. B †hŠMwUi ˆewkó¨ n‡jv
CN
M H2O N K +2 L +3 i. Wvqv‡Rwbqvg jeY ˆZwi Kiv hvq
ii. Kvwe©j Avwgb wewµqv cÖ`k©b K‡i
5. †KvbwUi e¨vcb nvi †ewk? M 2 N 1

K CO2 L SO2 14. †KvbwU †m‡KÛvwi ÷¨vÛvW© c`v_©? iii. HNO2 Gi mv‡_ wewµqv M¨vm
wbM©Z K‡i
M H2S N CH4 K A·vwjK GwmW L Abv`ª© Na2CO

6. Av`k© M¨v‡mi ms‡KvPbkxj ¸Yv‡¼i M KMnO4 N K2Cr2O7

gvb KZ? 15. STP †Z CH4 Gi RMS †eM KZ wb‡Pi †KvbwU mwVK?

K 30 L 20 ms1? K i I ii L ii I iii

M 10 N 05 K 204 L 259 M i I iii N i, ii I iii

7. DÏxc‡Ki H3O+ n‡jv M 2062 N 65235 23. 100 ml 015 (M) Na2S2O3 `ªe‡Yi
i. GwmW
16. KvMR Drcv`‡b weiÄK wn‡m‡e NbgvÎv ppm GK‡K KZ?

ii. H2O Gi AbyeÜx ÿviK †KvbwU e¨enZ„ nq? K 237 L 237

iii. GwU †cÖvUb cÖ`v‡b mÿg K Na2SO4 L NaOH M 23700 N 237000

wb‡Pi †KvbwU mwVK? M Na2CO3 N Ca(OCl)Cl 24. †KvbwU Dfag©x?

K i I ii L i I iii 17. AMÖMY¨ gj~ K †KvbwU? K NH3 L HBr
M HSO4 N NH4
M ii I iii N i, ii I iii K  NH2 L  CONH2
25. ev¯Íe M¨vm KLb Av`k© M¨v‡mi b¨vq
8. A¨v‡gvwbqv h³y AgNO3 `ªeY Øviv M  COOH N  CHO AvPiY K‡i?
wb‡Pi †KvbwU kbv³ Kiv hvq? L wb¤œ ZvcgvÎvq
18. cvbxq R‡j WHO KZ©K„ Aby‡gvw`Z K 0 C

pH gvb KZ?

K AvjwKb L A¨vjwWnvBW K 35 n‡Z 64 L 65 n‡Z 85 M D”P Pv‡c N D”P ZvcgvÎvq

M AvjKvBb N A¨vj‡Kvnj M 75 n‡Z 94 N 95 n‡Z 120

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 L 2 N 3 M 4 K 5 N 6 M 7 L 8 M 9 M 10 K 11 L 12 K 13 K
14 M 15 N 16 N 17 M 18 L 19 K 20 L 21 K 22 N 23 M 24 M 25 N

ˆmU : D 38 wm‡jU weÁvb I cÖhyw³ K‡jR, wm‡jU welq ˆKvW : 1 7 7
mgq : 25 wgwbU cY~ ©gvb : 25
imvqb wØZxq cÎ eûwbe©vPwb Afxÿv

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. ˆKvbwU BGjKGUÇvdvBj wnGmGe KvR KGi? 10. HCO3 Gi Abey Üx ÿviK †KvbwU?  DÏxcKwU c‡o 19 I 20 bs cÖ‡kœi
K H2CO3 L CO
K NH3 L H2O DËi `vI :

M OH N AlCl3 M CO32 N CO2 P +, Cl2/Cl//Fe2+/Fe3+, P+
EFe3+/Fe2+ = + 0.770V, ECl2/Cl =
2. cÖgvY `ªeY †KvbwU? 11. 5% NaOH Gi 1000 mL `ªe‡Y KZ
+ 1.358V
K 1.0 MH2SO4 MÖvg NaOH _v‡K?

L 1.0g H2SO4 K 5g L 25 g 19. DÏxc‡Ki †KvlwU emf KZ?
M 1.0mL H2SO4
N 1.0 mol H2SO4 M 40 g N 50 g K  0.588V L + 0.588V
M + 2.128 V N  2.128 V
12. Pvgovi wKDwis Gi cÖ‡qvRbxqZv Kx?

3. 2 wjUvi `ªe‡Y 80 MÖvg NaOH `ªexfZ‚ K †jvggy³ Kiv L Pwe© `i~ Kiv 20. DÏxc‡Ki †Kvl
M e¨vK‡Uwiqv g³y ivLv
n‡j `ªe‡Yi NbgvÎv KZ? i. ivmvqwbK kw³ Zwor kw³‡Z

K 1.0 M L 2.0 M N big I gmY„ Kiv iƒcvšiÍ n‡e

M 0.5 M N 0.25 M 13. wbw`©ó Pv‡c w¯’i f‡ii †Kv‡bv M¨v‡mi ii. wewµqvwU ¯^ZtùZ‚ ©fv‡e NU‡e

4. ˆcvUÆjÅv´£ wmGgG´Ÿi cÉavb Dc`vb nGjv AvqZb kb~ ¨ nq iii. †KvlwU mPj _vK‡Z cÖwZeÜKZvi

K MgO L Al2O3 i. 0 K ZvcgvÎvq m„wó n‡e bv

M CaO N Fe2O3 ii.  273 C ZvcgvÎvq wb‡Pi †KvbwU mwVK?

5. Av`k© M¨v‡mi †ÿ‡Î iii. 0 C ZvcgvÎvq K i I ii L ii I iii

i. AvšÍtAvYweK AvKl©Y ej †bB wb‡Pi †KvbwU mwVK? M i I iii N i, ii I iii
ii. ms‡KvPbkxjZv ¸Yv¼, Z = 0
K i I ii L ii I iii 21. †KvbwU wMÖb nvDR M¨vm bq?

iii. w¯’i ZvcgvÎvq PV Gi gvb GKB M i I iii N i, ii I iii K H2 L H2O
M CH4 N O3
wb‡Pi †KvbwU mwVK? 14. jeY †mZz KvR K‡i

K i I ii L i I iii i. Aa©‡Kv‡li ms‡hvM 22. STP †Z 3.2g GKwU M¨vm 2.24L

M ii I iii N i, ii I iii ii. Zij Rskb c‡Ubwkqvj `i~ xKi‡Y AvqZb `Lj Ki‡j M¨vmwU n‡Z

6. IUPAC c×wZ‡Z (CH3)3CCl Gi iii. Zwo”PvjK ej nv« mKi‡Y cv‡i

bvg Kx? wb‡Pi †KvbwU mwVK? K CO L CO2

K 2-†K¬v‡iv-2-wg_vBj †cÖv‡cb K i I ii L ii I iii M N2 N O2

L Uviwkqvwi weDUvBj †K¬vivBW M i I iii N i, ii I iii 23. 16g, O2 M¨v‡m KqwU AYy we`¨gvb?

M 2, 2-WvBwg_vBj-2-2 †K¬v‡ivB‡_b 15. 10 mL 0.5 M Na2CO3 `ªeY ckÖ wgZ K 2.03  1023 L 2.03  1023

N 3-†K¬v‡iv-2-wg_vBj Ki‡Z 12.6 mL H2SO4 `ªeY cÖ‡qvRb M 3.03  1023 N 3.03  1023

7. wbGPi ˆKvbwU ˆmGK´£vwi Õ¡Åv´£vWÆ c`v^Æ? n‡j GwmW `ªe‡Yi NbgvÎv KZ n‡e? 24. mwµqZv wmwi‡R †KvbwUi Ae¯’vb
8.
K Na2CO3 L K2Cr2O7 K 0.396 M L 0.387 M Dc‡i?
9.
M H2C2O4 2H2O N KMnO4 M 0.358 M N 0.333 M K Zn L Pb
M Hg N Ag
wb‡Pi †KvbwU A¤aø g©x? 16. †KvbwU Kqjvi ¸YMZ gvb e„w× K‡i?

K C6H5  OH K A¨vk L DØvqx c`v_© 25. Na2CO3 I HCl `ªe‡Yi UvB‡Uªk‡b
L C2H4
M CH3  C  CH M wd·W Kve©b N mvdjvi Dch³y wb‡`©kK n‡jv
N CH3  C = CH2 i. wg_vBj A‡iÄ
17. †jW †÷v‡iR e¨vUvwi‡Z Zwor we‡klø ¨ ii. wg_vBj †iW
evqygЇji kxZjZg AÂj †KvbwU? iii. †dbjd_¨vwjb
wnmv‡e †KvbwU e¨enZ„ nq? wb‡Pi †KvbwU mwVK?

K PbSO4 L H2SO4

K †g‡mvwùqvi M PbO2 N ZnSO4

L Avq‡bvwùqvi 18. †KvbwU cigkb~ ¨ ZvcgvÎv? K i I ii L ii I iii

M Uªv‡cvwùqvi N ÷¨v‡Uvwùqvi K  273 K L 0 C

M 0K N 25 C M i I iii N i, ii I iii

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 N 2 K 3 K 4 M 5 L 6 K 7 N 8 K 9 K 10 M 11 N 12 M 13 K
14 K 15 K 16 M 17 L 18 M 19 L 20 L 21 K 22 N 23 M 24 K 25 N

m„Rbkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  39

mgq : 25 wgwbU 39 ˆZqe‡y bœQv Lvbg miKvwi K‡jR, Rywo, wm‡jU welq ˆKvW : 1 7 7
cY~ ©gvb : 25
imvqb wØZxq cÎ eûwbe©vPwb Afxÿv

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. †Kvb †hŠ‡Mi ÿviKZ¡ †ewk? 9. DÏxc‡K `ªeYwUi NbgvÎv †gvjvwiwU‡Z 17. †Kv¬ ‡ivdig †Kvb wewµqvi mvnv‡h¨

K A¨v‡gvwbqv KZ? kbv³ Kiv hvq?

L wg_vBj A¨vwgb K 0.47 M L 0.1 M K DBwjqvgmb wewµqv
L Kvwe©j A¨vwgb wewµqv
M A¨vwbwjb M 0.06 M N 0.65 M M n¨v‡jvdig wewµqv
N DU©R wewµqv
N WvB wg_vBj A¨vwgb 10. DÏxc‡Ki `ªeYwUi cÖKw… Z 18. e¨vc‡bi †ÿ‡Î †Kvb m¤úK©wU mwVK?

2. †µvg U¨vwbs †Kvb wk‡íi Rb¨ i. A¤xø q

¸iæZ¡c~Y©? ii. ÿvixq Kr=k d L r=k M
K wm‡g›U iii. wbi‡cÿ Mr= k d
M BDwiqv L Pvgov wb‡Pi †KvbwU mwVK?
N KvMR M Nr=k M

3. SO42 Avq‡b mvjdv‡ii RviYgvb Ki L ii 19. †divm mvj‡dU `ªe‡Y 10 min mgq
KZ? M iii
N i, ii I iii a‡i 5A we`y¨r Pvjbv Ki‡j wK cwigvY

11. 4g He Gi Rb¨ Av`k© mgxKiYwU? avZz Rgv n‡e?

K +2 L + 2.5 K PV = nRT L PV = RT K 5.58 g L 6.60 g

M +4 N +6 M 0.868 g N 10 g
M PV = 2RT N PV = 4RT 20. A¤xø q `ªe‡Y wewµqvi mgq KMnO4
4. wg_vBj A‡iÄ A¤øxq gva¨‡g †Kvb eY© 12. †Kvb M¨vm؇qi e¨vc‡bi nvi mgvb?
KZwU B‡jKUªb MÖnY K‡i?
cÖ`k©b K‡i?
K H2 I O2 L N2 I H2 K6 L5
K †Mvjvcx L njy` M CO2 I O2
13. wb‡Pi †KvbwU N N2 I CO M3 N1
M †e¸wb N jvj
weRviY Aa©‡Kvl 21. Kve©wjK GwmW kbv³ Ki‡Z cv‡i

5. wb‡Pi †KvbwU B‡jKUªb AvKl©x? i. FeCl3 `ªeY

K H2O L OH Zwo`Ø& vi? ii. Br2 cvwb
iii. wjevig¨vb †U÷
M BF3 N NH3 K Cu/Cu2 L Zn/Zn2
M H2, Pt/H+ N Zn+2/Zn wb‡Pi †KvbwU mwVK?
6. KvMR Drcv`‡b weiÄK wnmv‡e †KvbwU
14. CH2 = CH2 + Br2  A K i I ii L i I iii
e¨en„Z nq?
K BrCH2  CH2Br M ii I iii N i, ii I iii

K Na2SO4 L Na2CO3 L CH3  Br 22. †ebwRb ej‡qi mwµqKvix gj~ K
M CH2Br = CHBr2
M NaOH N Ca(OCl)Cl N Br2CH  CHBr2 †KvbwU?

7. wb‡Pi †KvbwU welg PvwµK †hŠM? K  CN L  NO2
M R N  COOH
K †ebwRb L †dbj 15. 25g CaCO3 G we‡qvR‡b KZ MÖvg 23. †jW †÷v‡iR e¨vUvwi‡Z e¨en„Z nq

M wcwiwWb N UjyBb CaO cvIqv hv‡e? K HNO3 L H2SO4

8. Al2O3 Gi A¤øZ¡ KZ? K 14 L 28 M HCl N H  COOH

K2 L4 M 11 N 22 24. Zwor we‡køl¨ bq †KvbwU?

M6 N8 16. WHO KZ…©K Aby‡gvw`Z cvbxq R‡ji K MwjZ NaCl L H2SO4

 DÏxcKwU c‡o 9 I 10 bs cÖ‡kœi pH M H2O N CuSO4
DËi `vI : K7
L 6.5  8.5 25. HCl Gi AbyeÜx ÿviK †KvbwU?

5% Na2CO3 `ªeY K Cl L H

M 4.5  8.7 N 7  10 M NaOH N NaCl

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 N 2 L 3 N 4 N 5 M 6 N 7 M 8 M 9 K 10 L 11 L 12 N 13 N
14 K 15 K 16 L 17 L 18 M 19 M 20 L 21 N 22 M 23 L 24 M 25 K

40 miKvwi ˆmq` nv‡Zg Avjx K‡jR, ewikvj welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. SATP-†Z 25 L M¨v‡mi Pvc KZ Nm2 ? wb‡Pi †KvbwU mwVK? 18. dzGqj ˆmGj R¾vjvwb wnGmGe eÅen†Z nq

K 12200 L 25200 K i I ii L ii I iii i. wg‡_b
M 100850 N 110225
2. mgvb f‡ii CH4 I O2 M¨vm wbw`©ó M i I iii N i, ii I iii ii. nvB‡Wªv‡Rb

ZvcgvÎvi GKwU cv‡Î ivLv n‡jv| 10. DbœZgv‡bi Kqjvi †ÿ‡Î iii. wg_vbj

†gvU cÖ`Ë Pv‡ci wK cwigvY Ask O2 i. Rjxq Ask _vK‡e 8-10% wb‡Pi †KvbwU mwVK?
Øviv cÖ`Ë n‡e? ii. wd·W Kve©b ¸YMZ gvb evovq
K i I ii L ii I iii
M i I iii N i, ii I iii
K1 L1 iii. QvB 5% Gi wb‡P _vK‡e fvj
24 wb‡Pi †KvbwU mwVK?  DÏxcKwU c‡o 19 I 20 bs cÖ‡kœi
DËi `vI :
M1 N2 K i I ii L ii I iii
33 250 mL Kcvi mvj‡dU `ªe‡Y
3. M i I iii N i, ii I iii
cviA·vB‡Wi Dcw¯’wZ‡Z cÖwc‡bi mv‡_ AwZwi³ cUvwmqvg Av‡qvWvBW †hvM
HBr Gi wewµqvi gj~ Drcv`K †KvbwU? 11. K¨vcwUf cvIqvi cøv‡›U cÖvK…wZK
K 1-†evª ‡gv †cÖv‡cb K‡i cÖvß `ªeY‡K cÖwgZKi‡Y 0.5 M
L 2-†evª ‡gv †cÖv‡cb M¨v‡mi e¨envi
M cÖwcbwqK GwmW Na2S2O3 Gi 22.3 MI cÖ‡qvRb|
K 17% L 11% 19. CuSO4 `ªe‡Y Cu Gi cwigvY KZ?
M 7% N 12%
K 0.7 g L 1.2 g
N †cÖvcv‡bvb 12. Pkgvi KvP ˆZwi‡Z e¨enZ„ nq M 0.33 g N 1.5 g

4. SN2 wewµqvi †ÿ‡Î  K wbivc` Mvø m L µKz m Møvm 20. DÏxc‡Ki cÖwµqvi †ÿ‡Î
i. †cvjvi `ªe‡K mn‡R N‡U M wd¬›U Møvm N †ev‡iv wmwj‡KU Møvm i. Kcvi mvj‡dU `ªe‡Yi NbgvÎv 0.0177 M

ii. Ae¯v’ šiÍ Ae¯’v m„wó nq 13. Blue baby syndro me †ivM nq ii. CuSO4 I KI wewµqvi I2 Drcbœ
iii. wewµqvwU 2q µ‡gi †KvbwUi `l~ ‡Y? K‡i

wb‡Pi †KvbwU mwVK? K Pb L Hg iii. Na2S2O3 GKwU weRviK
wb‡Pi †KvbwU mwVK?
K i I ii L ii I iii M bvB‡UªU N wmwjKv
M i I iii N i, ii I iii
5. †mjy‡jv‡R †Kvb eÜbwU we`¨gvb? 14. KvM‡Ri wQ`ª eÜ Kivi Rb¨ e¨en„Z K i I ii L ii I iii
K -Mvø B‡KvmvBwWK eÜb M i I iii N i, ii I iii
L -Mvø B‡KvmvBwWK eÜb wdjvi c`v_© n‡jv 21. KveÆwbK ‰wmW I AÅvGgvwbqvg nvBGWÈvGRGbi
M H-eÜb i. U¨vjK UÇvBGUÇkb eÅen†Z wbG`ÆkK ˆKvbwU?
K †dbd_¨vwjb L _vBgj eø–
N †ccUvBW eÜb ii. TiO2 M †KvbwU bq N wg_vBj †iW

iii. Aatwÿß Pzbvcv_i

6. K¨vjwmqvg A¨v‡gvwbqvg bvB‡UªU mv‡i wb‡Pi †KvbwU mwVK? 22. 20 mL 0.5 M `ªe‡Y 50 mL 0.1 M
7.
8. wK cwigvY bvB‡Uªv‡Rb _v‡K? K i I ii L ii I iii H2SO4 †hvM Kiv n‡jv| wgkÖYwUi cÖK…wZ

9. K 10% L 20% M i I iii N i, ii I iii K A¤øxq L ÿvixq
M 30% N 45% 15. ˆjW ˆÕ¡vGiR ˆmGji ˆÞGò ˆKvbwU mwVK?
i. A¨v‡bvW Pb I K¨v‡_vW PbO2 M wbi‡cÿ N †KvbwU bq
cvwb‡Z †Kvb Dcv`v‡bi cwigvY K‡g ii. †Kvl wefe 1.685 V
23. AwZ-†e¸wb `k„ ¨gvb eY©vjxwgwZ‡Z
†M‡j As Gi cwigvY †e‡o hvq?
i. B‡jKUªb ¯’vbvšiÍ   
K Al I Fe L Fe I P iii. mvjwdDwiK Gwm‡Wi NbZ¡ 1.2
M Zn I Mn N Cr I Pb ii. Xe j¨v¤ú e¨envi Kiv hvq
ivL‡Z n‡e
cvwbGZ AmÁ·ƒYÆ RviGYi dGj ŠZwi nq  iii. d‡Uv gvwëcøvBqvi wW‡U±i e¨envi
wb‡Pi †KvbwU mwVK?
i. wg‡_b Kiv nq
K i I ii L ii I iii
ii. nvB‡Wªv‡Rb mvjdvBW wb‡Pi †KvbwU mwVK?
M i I iii N i, ii I iii
iii. A¨v‡gvwbqv K i I ii L ii I iii
16. wjw_qvg Avqb †Kv‡li wefe KZ? M i I iii N i, ii I iii
wb‡Pi †KvbwU mwVK?
K 3.6  3.7 V L 2.1  2.2 V 24. †KvbwU mwµqZv n«vmKvix gj~ K?
K i I ii L ii I iii
M i I iii N i, ii I iii M 1.5  1.8 V N 1.229 V K  NR2 L  CN
17. Al je‡Yi Rjxq `ªe‡Y 2 Kzj¤^ Zwor
bvB‡UªvwMmø vwi‡bi e¨envi M  CH3 N  O  CH3
cÖev‡n K¨v‡_v‡W KZ msL¨K Al 25. †WU‡j †ebwRb P‡µ KZ b¤^i Kve©‡b
i. wWbvgvBU ˆZwi‡Z
ii. n„`‡ivM I i³Pvc Kgv‡Z cigvYy Rgv n‡e Cl i‡q‡Q? L3
iii. A¨vgvUj bvgK we‡ùviK ˆZwi‡Z N6
K 5.8  1010 L 4.16  1018 K2
M 2.16  1018 N 6.2  105 M4

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 M 2 M 3 K 4 L 5 L 6 L 7 K 8 N 9 K 10 L 11 K 12 M 13 M
14 N 15 M 16 K 17 L 18 L 19 K 20 L 21 M 22 M 23 M 24 L 25 M

mR„ bkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  41

ˆmU : L 41 ei¸bv miKvwi K‡jR, ei¸bv welq ˆKvW : 1 7 7
mgq : 25 wgwbU c~Y©gvb : 25
imvqb wØZxq cÎ eûwbe©vPwb Afxÿv

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. †KvbwU welgPvwµK †hŠM? 9. `By wU M¨v‡mi Mo MwZkw³ KLb mgvb 16. cÖgvY KMnO4 `ªe‡Yi mvnv‡h¨ Fe(II)

K †ebwRb L mvB‡K¬v‡n‡·b nq? wbY©‡qi †ÿ‡Î wb‡`©kK wn‡m‡e KvR

M _v‡qvwdb N UjyBb K Pvc mgvb K‡i †KvbwU?

2. UjBy ‡b wmMgv eÜb KZwU? L AvYweK fi mgvb K †dbjd_¨vwjb L wg_vBj A‡iÄ

K 13 L 14 M ZvcgvÎv mgvb M KMnO4 `ªeY N Fe(II) `ªeY

M 15 N 16 N AvqZb mgvb  wb‡Pi DÏxc‡Ki Av‡jv‡K 17 I 18
10. wbw`©ó f‡ii †Kvb M¨v‡mi Pvc A‡a‡© K bs cÖ‡kœi DËi `vI :
3. me©wb¤œ KZ Kve©bwewkó A¨vj‡Kb
n«vm I ZvcgvÎv wظY Kiv n‡j X2+(aq) + 2e  X(s); EX2+/X = + 0.34
Av‡jvK mwµqZv cÖ`k©b K‡i? AvqZb KZ n‡e? Y(s)  Y2+(aq) + 2e; EX/Y2+ =  0.70

K4 L5

M6 N7 K c‡~ e©i mgvb L c~‡e©i wظY 17. †Kvb †Kvl WvqvMÖvgwU mwVK?

4. †KvbwU Av‡jvK mwµq †hŠM? K X(s), X2+(aq) || Y2+(aq), Y(s)

K 2-wg_vBj †cÖvcvbj-2 M PZz_©vsk N †KvbwUB bq L X(s), X2+(aq) || Y(s), Y2+(aq)

L †cÖvcvbj-2 11. HSO4 Gi AbyeÜx ÿviK †KvbwU? M Y(s), Y2+(aq) || X2+(aq), X(s)
M weDUvbj-1 N weDUvbj-2
  K H2SO4 L SO42 N Y(s), Y2+(aq) || X(s), X2+(aq)
DÏxc‡Ki Av‡jv‡K 5 I 6 bs cÖ‡kœi M SO3 N SO2
DËi `vI : 18. †KvlwUi emf KZ?
wb‡Pi DÏxcKwU jÿ Ki Ges 12 I
K + 1.04 V L + 0.36 V
13 bs cÖ‡kœi DËi `vI :
A [H] LiAlH4 B H2SO4165C D M  0.36 V N  1.04 V
25 C ZvcgvÎvq wZbwU cv‡Î
O3 E H2O Zn X 19. †ccUvB‡Wk c×wZ‡Z ˆZwi Kiv nq
mgf‡ii (10 g) H2, N2 I O2 †bIqv
"X" GK Kve©bwewkó Kv‡e©vbvBj n‡jv| †KvbwU?

†hŠM| 12. DÏxc‡K cÖ`Ë M¨v‡mi AYymg‡~ ni K Kj‡qW L mvm‡cbkb

5. †KvbwU A †hŠ‡Mi ms‡KZ? MwZkw³i µg wb‡Pi †KvbwU? M Bgvjmb N †Kvqv¸‡jkb
6.
K CH3CONH2 L CH3COCH3 K H2 > N2 > O2 L N2 > O2 > H2 20. KZ Kve©bwewkó A¨vj‡Kvnj wbiæw`Z
M CH3COOH N CH3OCH3 M N2 > H2 > O2 N O2 > N2 > H2
n‡q A¨vjwKb Drcbœ K‡i bv?
13. O2 M¨vmwUi AYyi eM©g~j MoeM© †eM
DÏxcK Abymv‡i K1 L2
KZ ms1?
i. B jyKvm weKvi‡Ki mv‡_ mvaviY M3 N4

ZvcgvÎvq wewµqv K‡i bv 21. 5(W/V)% KOH `ªe‡Yi †gvjvi

ii. HCHO †K RvwiZ K‡i A ˆZwi K 681.55 L 481.95 NbgvÎv KZ?

Kiv hv‡e bv M 21.55 N 15.24 K 1.25 L 0.983

iii. D †eªvwgb `ªeY‡K eY©nxb K‡i  wb‡Pi DÏxcK n‡Z 14 I 15 bs M 0.893 N 0.694

wb‡Pi †KvbwU mwVK? cÖ‡kœi DËi `vI : 22. †KvbwU ppm Gi mgvb?

K i I ii L i I iii Fe2+ + MnO4 + H+  A + Mn2+ + H2O K mg/mL L mg/L

M ii I iii N i, ii I iii 14. DÏxc‡Ki wewµqvq  M g/L N kg/L

i. MnO4 weRvwiZ n‡q‡Q 23. mgAvqZb I mgNbgvÎvi NaOH
ii. "A" n‡jv RviK c`v_©
7. A I B M¨vm؇qi †gvj msL¨v iii. H+ Avqb weRviK `ªeY I H2SO4 `ªe‡Yi cÖKw… Z Kxiƒc?
wb‡Pi †KvbwU mwVK?
h_vµ‡g 4 I 6 Ges wgkÖ‡Yi †gvU Pvc K wbi‡cÿ L ÿvixq

10 atm n‡j A Gi AvswkK Pvc KZ M A¤xø q N Dfagx©

atm? L4 K i I ii L i I iii 24. Cr2O72 + C2O42 + H+  Cr3+ +
K3 N6 M ii I iii N i, ii I iii
CO2 + H2O
M5
G wewµqvq RviK I weRvi‡Ki †gvj
8. mgf‡ii wg‡_b I nvB‡Wªv‡Rb 15. DÏxc‡Ki 20 mL 0.05 M RviK msL¨vi AbycvZ KZ?
k~b¨cv‡Î 27 C ZvcgvÎvq ivLv `ªeY‡K weRvwiZ Ki‡Z KZ mL
K 1:3 L 1:6
n‡jv| wg‡_‡bi AvswkK Pvc †gvU †Wwm‡gvjvi weRviK `ªeY cÖ‡qvRb M 1 : 5
Pv‡ci KZ ¸Y? N 2:5

K 1/2 L 1/9 n‡e? 25. H2 d‡z qj †m‡ji emf KZ volt?

M 8/9 N 16/17 K 20 L 30 K 0.76 L 1.10

M 40 N 50 M 1.23 N 2.03

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 M 2 M 3 N 4 N 5 M 6 N 7 L 8 L 9 M 10 N 11 L 12 K 13 L
14 K 15 N 16 M 17 K 18 L 19 K 20 K 21 M 22 L 23 M 24 K 25 M

42 cwy jk jvBÝ ¯‹zj GÛ K‡jR, isciy welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv cY~ ©gvb : 25

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. †ebwRb ejq mwµqKvix g~jK wb‡Pi †KvbwU mwVK? wb‡Pi †KvbwU mwVK?

†KvbwU? K i I ii L i I iii K i I ii L i I iii

K  CHO L  NO2 M ii I iii N i, ii I iii M ii I iii N i, ii I iii

2. M  NH2 N  COOH Kiv  DÏxcKwU c‡o 9 I 10 bs cÖ‡kœi 16. g„`y GwmW I Zxeª ÿv‡ii UvB‡Uªk‡b
DËi `vI : †Kvb wb‡`©kK e¨envi Kiv nq?
A¨v‡µvwjb cixÿv Øviv kbv³ K †h †Kvb wb‡`©kK

hvq A LiAlH4 RCONH2 KOH + Br2 B

K wMømvwib L †dbj L wg_vBj A‡iÄ

M B_vbj N †cÖvcvbj 9. A Ges B n‡jv M †dbd_¨vwjb N wg_vBj †iW

3. R  X + RONa  R  O  R + i. mg‡MvÎK 17. 1ppm ej‡Z eSy vq

NaX; wewµqvwUi bvg ii. A¨vwgb K 1mgL L 1mgL2

K DU©R wewµqv iii. ÿviK M 1 mg1L1 N 1mgL1
L DBwjqvgmb wewµqv wb‡Pi †KvbwU mwVK? 18. †Kvb AvYweK ¸YwU Av`k© M¨vm †_‡K

M ivBgvi UvBg¨vb wewµqv K i I ii L i I iii h‡_ó wePz¨wZ NUvq
N DU©R wdwUM wewµqv
IR eYv© jx‡Z Kvh©Kix gj~ K kbv³Ki‡Y M ii I iii N i, ii I iii K D”P AvYweK MwZ

4. wd½vi wcÖ›U GjvKvi Zi½ msL¨v 10. B †hŠMwU HNO2 Gi mv‡_ wewµqvq wK L ÿ`z ªZi AvYweK IRb
Drcbœ Ki‡e?
K 4000  500 cm1 M e„nr AvYweK AvqZb
L 4000  1000 cm1
M < 1000 cm1 K A¨vj‡Kvnj L wK‡Uvb N `ey ©j AvšÍ:AvYweK AvKl©Y

M A¨vjwWnvBW N A¨vwgb 19. wb‡¤œ †KvbwU Pv‡ci GKK bq?

K Nm2 L atm

N < 500 cm1 11. wb‡Pi †KvbwU cÖvBgvwi ÷vÛvW© c`v_© M Litre-atm N Torr
20. †Kvb †kÖwYi Avq‡b + 3 RviY msL¨vi
5. n(CH2 = CHZ) ZcvcÉfvePKvc cwjgvi K Na2S2O3 L NaOH cigvYy Av‡Q?
M FeSO4 N K2Cr2O7
K ClO2 L PO43
Z =  CH3 n‡j Drcbœ cwjgviwU n‡e 12. 300 mL 025 M `ªeY ˆZwi Ki‡Z Kx
M S2O32 N NO22+
K cwjw_b L cwj‡cÖvwcb cwigvY Na2CO3 cÖ‡qvRb? 21. wb‡¤œi †Kvb M¨vmwU Av`k© M¨v‡mi ag©

M cwj÷¨vwib N wcwfwm K 530 g L 795 g †_‡K me‡P‡q †ewk wePz¨Z?

6. †ebwRb †_‡K ˆZwi Kiv hvq M 800 g N 1060 g K HCl L He
i. Mvø BA·vj M CH4 N N2
13. wb‡Pi †KvbwU GKB mv‡_ RviK I
ii. mvB‡K¬v‡n‡·b
weRviKiƒ‡c KvR K‡i? 22. 32 gm Aw·‡R‡b AYyi msL¨v

iii. M¨vgvw·b K SO2 L FeSO4 K 6844  1022 L 2  105

wb‡Pi †KvbwU mwVK? M CuSO4 N H2 M 6023  1023 N 299  1023

K i I ii L i I iii  DÏxcKwU c‡o 14 I 15 bs cÖ‡kœi 23. H2O + NH3  OH + NH4+
i. H2O ÿvi
M ii I iii N i, ii I iii DËi `vI : ii. OH Abey Üx ÿvi

7. †WU‡ji g~j Dcv`vb †KvbwU? iii. NH4 Abey Üx GwmW
wb‡Pi †KvbwU mwVK?
K †K¬v‡ivRvBwjbj 20% H2SO4

L AvB‡mv‡cÖvcvbj 14. DÏxc‡Ki `ªe‡Y cvwbi cwigvY KZ? K i I ii L i I iii
M ivB‡mvwbwjK GwmW
N †K¬v‡iv‡ebwRb M ii I iii N i, ii I iii
24. evqgy Їji ÷ªv‡Uv‡ùqvi ¯Í‡ii cÖavb
2%HgSO4 K 20 g L 80 g
20% H2SO4
8. A + H2O M 100 g N 120 g Dcv`vb n‡jv

CH3CHO; wewµqvwU A †hvMwU 15. DÏxc‡Ki `ªeYwUi NbgvÎv K Aw·‡Rb L wbqb

i. B_vBb i. NbgvÎv 204 M M I†Rvb N Kve©bWvB A·vBW
25. †dqª b-12 Gi ms‡KZ †KvbwU?
ii. †evª wgb `ªeY cixÿv †`q ii. wbiæ`b ag© Av‡Q K CF3Cl L CCl3F

iii. A¤øag©x iii. Mvp Ae¯’vq weRviY ag© Av‡Q M CCl2F2 N F2ClCCClF2

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 M 2 K 3 L 4 M 5 L 6 N 7 K 8 N 9 N 10 K 11 N 12 L 13 K
14 L 15 K 16 M 17 N 18 N 19 M 20 K 21 K 22 M 23 M 24 M 25 M

m„Rbkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  43

43 jvqÝ ¯‹zj GÛ K‡jR, isciy welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv cY~ ©gvb : 25

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. STP †Z 3.2 g GKwU M¨vm 2.24 L 8. KZ MÖvg KClO3 †K DËß Ki‡j STP 16. G wewµqvwU‡Z

AvqZb `Lj Ki‡j M¨vmwU n‡Z cv‡i †Z 17 L O2 cvIqv hvq? i. FeSO4 Gi RviY N‡U‡Q

†KvbwU? K 32 g L 62 g ii. KMnO4 RviK c`v_©
iii. KMnO4 GLv‡b 5wU B‡j±ªb MÖnY
K CO L CO2 M 85 g N 96 g
K‡i‡Q
M N2 N O2 9. 2 wjUvi `ªe‡Y 80 g NaOH `ªexfZ‚

2. w¯’i ZvcgvÎvq RMS †e‡Mi mwVK Av‡Q| H `ªe‡Yi NbgvÎv KZ n‡e? wb‡Pi †KvbwU mwVK?

µg †KvbwU? K 1.0 M L 2.0 M K i I ii L ii I iii

M 0.5 M N 0.25 M M i I iii N i, ii I iii

K H2 > N2 > CO2 10. wb‡Pi †Kvb †Rvov jBy m GwmW? 17. wb‡Pi †Kvb Zwo`Ø& vi RviY cÖwµqv
L CO2 > N2 > H2
M N2 > CO2 > H2 K H2O, AlCl3 L AlCl3, BF3 †evSvq?

M BF3, NH3 N NH3, AlCl3 K Zn2+/Zn L Zn/Zn2+

N N2 > H2 > CO2 11. wb‡Pi †KvbwU RviK weRviK Dfq M Cu2+/Cu N H+/H2, Pt
12.
3. 17 C ZvcgvÎvq GK †gvj N2 Gi wnmv‡e wµqv K‡i? 18. Pt, H2 / H+ weRviY wefe KZ?
4. MwZkw³ KZ?
K KI L H2C2O4 K + 0.76 V L + 0.34 V
K 3606.59 J L 3616.59 J
M 5936.16 J N 5916.36 J M Na2S2O3 N H2O2 M  0.76 V N 0V

wbw`©ó Pv‡c wbw`©ó f‡ii †Kvb M¨v‡mi Na2S4O6 †hŠ‡M S Gi RviY gvb KZ? 19. †KvbwU cÖvBgvwi wb‡`©kK Zwo`&Øvi

K +2 L + 2.5

M +3 N + 3.5 K K¨v‡jv‡gj L M¨vm Zwo`&Øvi

AvqZb ZË¡xqfv‡e k~b¨ nq  M nvB‡Wªv‡Rb N wRsK Zwo`Ø& vi

i. 0 K ZvcgvÎvq 2% HCl 2% Kw÷K †mvWvi 20. jeY †mZz‡Z wb‡Pi †Kvb `ªeY e¨envi
ii.  273 C ZvcgvÎvq `ªeY 50 cm3 `ªeY 50 cm3
Kiv nq?

iii. 0 C ZvcgvÎvq DÏxcKwfwËK 13 I 14 bs cÖ‡kœi K CaCl2 L CuCl2

wb‡Pi †KvbwU mwVK? DËi `vI : M KCl N Al2(SO4)3

K i I ii L ii I iii 13. DÏxc‡Ki `ªeY `ywUi NbgvÎvi †ÿ‡Î 21. Zn(s)/Zn2+(aq) || Cu2+(aq)/Cu(s);

i. Dfq `ªe‡Yi NbgvÎv ppm GK‡K mgvb K¨v‡_v‡W †Kvb wewµqv N‡U?

M i I iii N i, ii I iii ii. wgwkÖZ `ªe‡Yi cÖK…wZ wbi‡cÿ K Zn  Zn2+ + 2e
iii. Dfq `ªe‡Yi †gvjvi NbgvÎv Amgvb
5. A¨vwbwj‡b wmMgv eÜb msL¨v KqwU? L Cu2+ + 2e  Cu
6.
K6 L8 wb‡Pi †KvbwU mwVK? M Zn2+ + 2e  Zn

M 10 N 14 K i I ii L ii I iii N Cu  Cu2+ + 2e

wb‡Pi †KvbwU B‡j‡±ªvdvBj wnmv‡e 22. evsjv‡`‡k cÖvKw… ZK M¨vm †Kvb †ÿ‡Î

KvR K‡i? M i I iii N i, ii I iii me©vwaK e¨en„Z nq?

K NH3 L H2O 14. 2q cv‡Îi `ªeY‡K †Wwm‡gvjvi `ªe‡Y K BDwiqv mvi Drcv`‡b
M OH N AlCl3
cwiYZ Ki‡Z KZ cvwb †hvM Ki‡Z L we`¨y r Drcv`‡b

7. wbDwK¬IwdwjK ms‡hvRb wewµqv †`q n‡e? M ivbvœ i Kv‡R N Mvwoi R¡vjvwb‡Z

K 250 mL L 200 mL 23. wRcmv‡gi ms‡KZ †KvbwU?

i. > C = O M 100 mL N 50 mL K CaSO4.H2O L CaSO4.2H2O

O  wb‡Pi DÏxcKwU jÿ Ki Ges 15 I M ZnSO4.7H2O N ZnSO4.2H2O
||
ii.  C  H 16 bs cÖ‡kœi DËi `vI : 24. b¨v‡bv KYvi cwimi n‡jv

O 2 KMnO4 + 10 FeSO4 + 8 H2SO4  K 1.0  100 nm L 200  300 nm
|| M 1.0 nm  50 nm
iii.  C  O  H 5 Fe2(SO4)3 + 2 MnSO4 + K2SO4 + 8 H2O N 350  400 nm

wb‡Pi †KvbwU mwVK? 15. G‡ÿ‡Î Mn Gi RviY msL¨v n«vm

K i I ii L ii I iii †c‡q †KvbwU n‡q‡Q? 25. KvM‡Ri cÖavb Dcv`vb †KvbwU?

M i I iii N i, ii I iii K +5 L +2 K wjMwbb L ÷vP©

M +1 N 1 M †mj‡y jvR N KzwKs wjKvi

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 N 2 K 3 L 4 K 5 N 6 N 7 K 8 L 9 K 10 L 11 N 12 L 13 M
14 L 15 L 16 N 17 L 18 N 19 M 20 M 21 L 22 L 23 L 24 K 25 M

44 Avb›` †gvnb K‡jR, gqgbwmsn welq ˆKvW : 1 7 7

mgq : 25 wgwbU imvqb wØZxq cÎ eûwbe©vPwb Afxÿv c~Y©gvb : 25

[we. `ª. : mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|]

1. evqygíGji ˆKvb Õ¦iGK kv¯¦gíj ejv nq? 12. AÅvGbvGW ˆKvb AvqbwU AvGM RvwiZ nGe? 21. A¨v‡iv‡gwUK †hŠ‡Mi †ÿ‡Î
K Uª‡cv‡ùqvi L ÷ªv‡Uv‡ùqvi K †K¬vivBW Avqb L †eªvgvBW Avqb
M †g‡mv‡ùqvi N _v‡g©v‡ùqvi M bvB‡UªU Avqb N mvj‡dU Avqb i. B‡jK‡UªvwdwjK cÖwZ¯’vcb wewµqv †`q

2. wb‡¤œi †Kvb M¨vmwUi ZijxKiY mnR? 13. jeY ˆmZzGZ ˆKvbwU eÅenvi Kiv nq bv? ii. FYvZ¥K Av‡ewkZ cÖfve
3.
K nvB‡Wªv‡Rb L Aw·‡Rb K KCl L NH4Cl A¨v‡iv‡gwUwmwU‡K e„w× K‡i
4.
5. M bvB‡Uªv‡Rb N wnwjqvg M NH4NO3 N KNO3 iii. †ebwRb A‡cÿv †bc_vwj‡bi
6.
7. 10% Na2CO3 `ªe‡Yi †ÿ‡Î 14. Mvp NaCl Gi Rjxq `ªeY‡K ZwoZ we‡klø Y mwµqZv †ewk
8. i. Bnv GKwU †gvjvi `ªeY
Ki‡j A¨v‡bv‡W wK cvIqv hvq? wb‡Pi †KvbwU mwVK?

ii. Gi NbgvÎv 0.94 M K nvB‡Wªv‡Rb M¨vm L †mvwWqvg avZz K i L i I ii
N †K¬vwib M¨vm
iii. Gi Rjxq `ªeY ÿvixq M NaOH M i I iii N i, ii I iii
15. UV iwk¥ cÖwZ‡ivaK hv Pkgvi KvP wn‡m‡e
wb‡Pi †KvbwU mwVK?  DÏxcKwU c‡o 22 I 23 bs cÖ‡kœi
e¨en„Z nq Zv‡Z wb‡¤œi †Kvb avZz _v‡K?
K i I ii L i I iii DËi `vI :
M ii I iii N i, ii I iii K Np L Ce M Er N U
16. jÿ¨ Ki : CuSO4 + KI = I2 + Cu2I2 + (i) A2 + 3B2 = 2AB3; H =  ve †hLv‡b
wb‡¤œi †KvbwU ˆRe †hŠM bq? K2SO4; wewµqvi †ÿ‡Î gy³ Av‡qvwWb‡K A I B Gi cv, msL¨v h_vµ‡g 7 I 1|
UvB‡Uªkb Ki‡Z 0.1 M 40 mL Na2S2O3 jv‡M|
K Kve©wbK GwmW L evwK ej i. CuSO4 GKwU RviK (ii) Pvqbv †K¬ Pzbvcv_i I A¨vjywgbv  wkí
M cwjw_b N BDwiqv ii. Bnv Av‡qvwWwgwZK UvB‡Uªkb
†KvbwUi Mjbv¼ †ewk?
22. DóxcGK wkG͸i cÉavb Dcv`vb ˆKvbwU?
K B‡_b L B_vbj K Pbz
M WvB wg_vBj B_vi N GwmwUK iii. DÏxc‡K 0.254 g Kcvi (Cu2+) L SiO2
Avqb Av‡Q M MgO N Al2O3
GwmW
wb‡Pi †KvbwU mwVK? 23. DÏxc‡Ki (i) bs wewµqvi †ÿ‡Î
wbDwK¬IwdwjK ms‡hvRb wewµqvi cÖwZ
K i I ii L i I iii i. ZvcgvÎv e„w× Ki‡j Kp Gi gvb
†KvbwU AwaK mwµq? M ii I iii N i, ii I iii e„w× cv‡e

K †cÖvcvb¨vj L †cÖvcv‡bvb 17. wbGÁ²i ˆKvb MÅvmwU wMbÉ nvDR MÅvm bq? ii. AB3 †_‡K BDwiqv mvi cÖ¯‘Z Kiv m¤¢e
M wg_vb¨vj N B_vb¨vj iii. AB3 Drcv`‡bi †ÿ‡Î evqy `~lKmgn~
cÉgvY AeÕ©vq Pvi MÉvg AÅvGgvwbqv `nb K Kve©b WvBA·vBW L wg‡_b
KiGj KZ MÉvg bvBwUÇK AÝvBW cvIqv hvGe? M bvBUªvm A·vBW
N mvjdvi WvBA·vBW CO2, NOx, SO2, CO
K 5.7 g L 7.05 g 18. Kv‡Pi Dci bKkv Kivi Rb¨ wb‡¤œi
wb‡Pi †KvbwU mwVK?

M 8.9 g N 30 g †Kvb GwmW e¨envi Kiv nq? K i I ii L i I iii
100 wgwjMÖvg Pbz vcv_i †_‡K KZ wg.wj.
Kve©b WvB-A·vBW cvIqv hv‡e? K H2SO4 L HCl M ii I iii N i, ii I iii
M HF N HNO3
K 0.224 L L 22.4 mL 24. Zwor ivmvqwbK wmwi‡Ri †ÿ‡Î
M 2.4 L N 2.24 L  DÏxcKwU c‡o 19 I 20 bs cÖ‡kœi i. cÖgvY weRviY wefe hZ †ewk †mB

9. cvwbi we÷«¬Zv wbYÆGqi cÅvivwgUvi nGjv DËi `vI : avZz ZZ Zxeª weRviK

i. COD A(LiAlH4) Øviv DËß)  B(H2SO4 ii. †h avZz hZ Dc‡i Aew¯’Z †m avZz

ii. TDS Øviv 165 C ZvcgvÎvq DËß)  ZZ †ewk mwµq

iii. pH C(Ozonolysis & H2O/Zn)  2HCHO iii. †h Avqb hZ wb‡P Aew¯’Z Zvi

wb‡Pi †KvbwU mwVK? 19. DÏxc‡K A Gi Kvh©Kix gj~ K †KvbwU? PvR© g³y nIqvi cÖeYZv ZZ †ewk

K i I ii L i I iii K  OH L  COOH wb‡Pi †KvbwU mwVK?
M ii I iii N i, ii I iii
10. †Kvb c`v‡_©i †iva _v‡K bv? M  CONH2 N  CHO K i I ii L i I iii

K Good Conductor L Bad Conductor 20. DÏxcK Abymv‡i M ii I iii N i, ii I iii

M Semi Conductor N Super Conductor i. B Gi Kvh©Kix gj~ K kbv³Ki‡Y 25. ˆRe †hŠ‡M Av‡jvK mwµqZvi †ÿ‡Î

11. Zwor ivmvqwbK ˆKvGli wewKÌqv Õ¼ZtÕ¹„ZÆ Na avZz e¨envi nq i. AcÖwZmg Kve©b bv _vK‡jI †hŠM

nIqvi kZÆ nGjv ii. B †hŠMwU n¨v‡jvdig wewµqvq mvov Av‡jvK mwµq n‡Z cv‡i

i. emf FYvZ¥K nIqv †`q bv
ii. gy³ kw³i cwieZ©b FYvZ¥K nIqv iii. C †hŠM B‡jK‡UªvwdwjK ms‡hvRb ii. `cY© cÖwZwe¤^ m„wó K‡i
iii. gy³ kw³i cwieZ©b abvZ¥K nIqv iii. cÖwZmv‡g¨i Dcv`vb Abycw¯’Z _v‡K
wewµqvq mvov †`q
wb‡Pi †KvbwU mwVK? wb‡Pi †KvbwU mwVK?
K i L i I iii wb‡Pi †KvbwU mwVK?

M ii I iii N i, ii I iii K i I ii L i I iii K i I ii L i I iii
M ii I iii N i, ii I iii M ii I iii N i, ii I iii

Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN
10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN
19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

DËigvjv 1 L 2 L 3 M 4 K 5 N 6 M 7 L 8 L 9 N 10 N 11 K 12 L 13 L
14 N 15 L 16 L 17 N 18 M 19 L 20 L 21 M 22 K 23 M 24 M 25 M

kxl©¯’vbxq K‡j‡Ri wbe©vPwb cix¶vi
cÖkcœ Î : m„Rbkxj

45 bUi †Wg K‡jR, XvKv welq ˆKvW : 1 7 7

mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ mR„ bkxj cÖkœ cY~ ©gvb : 50

[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi cY~ ©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó ckÖ œ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]

1  (i) NH4Cl + Pb(CNO)2 A + PbCl2 K. Zwor ivmvqwbK Zzj¨vsK Kx? 1
L.
cbƒ weÆbÅvm M. Cu Gi cÖgvY weRviY wefe + 0.34 V ej‡Z wK eyS? 2

B N. A¤øxq gva¨‡g B cv‡Îi `ªeY Øviv A cv‡Îi `ªeY

(ii) KuvPv Pvgov  wcÖU¨vwbs  †µvgU¨vwbs  C 6 UvB‡Uªk‡bi RviY-weRviY wewµqv Avqb B‡jKUªb
K. U‡UvgvwiRg Kx?
1 c×wZ‡Z mgZvKiY †`LvI| 3

A cv‡Îi 10 mL A¤øxq `ªeY‡K B I C cv‡Îi m¤ú~Y© `ªeY

L. 1, 3-cyclobutadien A¨v‡iv‡gwUK †hŠM bq e¨vL¨v Ki| 2 Øviv UvB‡Uªk‡b c„_Kfv‡e cÖvß Fe Gi cwigvY
M. DÏxc‡Ki 'B' Drcv`wUi wk‡ívrcv`b mgxKiYmn e¨vL¨v
MvwYwZKfv‡e Zzjbv Ki| 4
Ki| 3

N. DÏxc‡Ki B I C Drcv`b cÖwµqvq wbM©Z ÿwZKi 25 C

`l~ Kmg~‡ni cÖfve we‡kølY Ki| 4 [Cr3+] = 15 m M [Fe2+] = 5 mM
[Cr2O72] = 4.5 m M [Fe3+] = 10 mM
2
pH = 2

A-cvò B-cvò

Cr2O72 I Fe3+ Gi cÖgvY weRviY wefe h_vµ‡g + 1.33 V I +

0.77 V

K. PAN Gi ms‡KZ wjL| 1 K. A¨v‡µvwj‡bi ms‡KZ wjL| 1

L. R Gi Zvrch© wjL| 2 L. bvBjb 6, 6 GKwU Nbxfeb cwjgvi e¨vL¨v Ki| 2

M. DÏxc‡Ki B †_‡K A Drcv`‡bi ivmvqwbK wewµqv †jL| 3 M. A cv‡Îi `ªe‡Yi Rb¨ Cr2O72  2Cr3+ Gi †ÿ‡Î wef‡ei

N. DÏxc‡Ki A I C †hŠ‡M B‡j‡±ªvwdwjK cÖwZ¯’vc‡b gvb MYbv Ki| 3

cÖwZ¯’vc‡Ki Ae¯’v‡bi wfbœZvi KviY, wµqv †KŠkjmn N. A I B cv‡Îi `ªeYØq Zwo`Øvi Øviv h³y Ki‡j 2.0 V Gi
GKwU evwZ R¡j‡e wKbv MvwYwZKfv‡e we‡kølY Ki| 4
we‡kølY Ki| 4

3  C4H8 †hŠ‡Mi `ywU Ae¯’vb mgvYy A (cÖwZmg) I B (AcÖwZmg)| A 7

†hŠMwU 2% HgSO4 I 20% H2SO4 Gi Dcw¯’wZ‡Z H2O Gi mv‡_ 30 C KK 30 C 30 C

wewµqvq C Ges B †hŠMwU ˆRe cvi A·vB‡Wi Dcw¯’wZ‡Z HBr N2(7g) KK
2 atm
Gi mv‡_ wewµqvq D Drcbœ K‡i| CO2
4g
K. †MøwRs wK? 1
2L

L. Nuclear energy bevqb‡hvM¨ R¡vjvwb e¨vL¨v Ki| 2 I bs II bs III bs

M. DÏxc‡Ki 2q wewµqvwUi wµqv †KŠkj Av‡jvPbv Ki| 3 K. d¨viv‡Wi 1g m~ÎwU wjL| 1

N. DÏxc‡Ki A I C †hŠM `wy U wfbœ ai‡bi R¨vwgwZK mgvYZy v L. ZvcgvÎv e„wׇZ B‡jKUªwbK cwievnxi cwievwnZv n«vm

cÖ`k©‡bi KviY we‡kølY Ki| 4 †c‡jI B‡jK‡UªvjvBwUK cwievnxi cwievwnZv e„w× cvq

4 †Kb? 2

0.98 atm, 0.3 L 29 C, 95 cm(Hg) M. DÏxc‡Ki 2bs wP‡Î D‡jøwLZ KK¸‡jv Ly‡j w`‡j wgkÖ‡Yi
Crms = 148.99 ms1 Crms = 412.38 ms1
Pvc 1 atm n‡j IIbs cv‡Îi AvqZb KZ? 3
A B
N. wP‡Î D‡jøwLZ M¨vm؇qi cwi‡ekMZ cÖfv‡ei Zzjbvgj~ K

K. weqvi j¨v¤^vU© mÎ~ wU wjL| 1 we‡kølY Ki| 4

L. g„`y GwmW I Zxeª ÿv‡ii UvB‡Uªk‡b wb‡`©kK wn‡m‡e 8  Mg(s)/Mg2+(aq) || Al3+(aq)/Al(s) Pb ˆÕ¡vGiR eÅvUvwi

†dbd_¨vwjb e¨enZ„ nq e¨vL¨v Ki| 2 A B

M. DÏxc‡Ki A M¨vmwUi †gvU MwZkw³ wbYq© Ki| 3 Li Avqb eÅvUvwi

N. DÏxc‡Ki B M¨vm wPwýZ K‡i Z ebvg P †jLwPÎ AsKb C

K‡i Av`k© M¨v‡mi mv‡_ AvPi‡Yi wfbœZvi KviY we‡kølY Mg I Al Gi cÖgvY RviY wef‡ei gvb h_vµ‡g + 2.36 V Ges +

Ki| 4 1.66 V 1

K. msKi ZvcgvÎv Kx?

5 L. AlCl3 GKwU jyBm GwmW †Kb? 2

15 g Fe 20 mL 16.7 mL M. 25 C ZvcgvÎvq A †Kv‡li Rb¨ mvg¨aªæeK Gi gvb wbYq©
0.15 M 0.2 M
100 mL KMnO4 K2Cr2O7 Ki| 3
H2SO4
N. B I C Gi wWmPvwR©s cÖwµqvi Zjz bv Ki| 4
A BC

46 wfKviæbwbmv bb~ ¯‹jz GÛ K‡jR, XvKv welq ˆKvW : 1 7 7

mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ cY~ ©gvb : 50

[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó ckÖ œ¸‡jvi DËi `vI| †h †Kv‡bv cvu PwU cÖ‡kœi DËi w`‡Z n‡e|]

1 (i) CH3OH + [O] K2Cr2O7 A 5
+H2SO4

(ii) CH3  CH2  OH + [O] K2Cr2O7 B
+H2SO4

(iii) CH3  CH  CH3 + [O] K2Cr2O7 C
| +H2SO4

OH K. DDT Gi ms‡KZ wjL| 1

K. jKy vm weKviK Kv‡K e‡j? 1 L. †`LvI †h, b¨vc_¨vwjb GKwU A¨v‡iv‡gwUK †hŠM| 2

L. A¨vwbwjb GKwU `ye©j ÿvi e¨vL¨v Ki| 2 M. DÏxcK wewµqvq X cÖ¯‘wZi wewµqv †KŠkj eYb© v
Ki| 3
M. wMÖMbvW© weKviK †_‡K (ii) I (iii) bs wewµqvi

wewµqK Kxfv‡e cÖ¯‘Z Kiv hvq Zv mgxKiYmn N. B‡jKUªbvKlx© cÖwZ¯’vcb wewµqvq X I Y Gi g‡a¨
6
wjL| 3 †KvbwU AwaK mwµq Zv hyw³mn e¨vL¨v Ki| 4

N. DÏxc‡Ki A, B I C †hŠ‡Mi mwµqZvi mwVK µgwU
2
Dchy³ KviYmn e¨vL¨v Ki| 4 0.25 g Fe AvKwiK

680 mL 0.15 M 440 mL 0.1 M 210 mL 0.25 M H2SO4 `ªeY

HCl `ªeY NaOH `ªeY Na2CO3 `ªeY

I II III K. wd-« i¨vwW‡Kj Kv‡K e‡j? 1

K. cÖvBgvwi ÷¨vÛvW© c`v_© Kv‡K e‡j? 1 L. †`LvI †h, sn2+ RviK I weRviK Dfqiƒ‡cB KvR
K‡i| 2
L. Al2O3 Gi A¤øZ¡ KZ? †Kb? 2

M. (III) bs cv‡Îi `ªe‡Y Dcw¯’Z Na+ Gi msL¨v wbY©q M. DÏxcK `ªeY‡K cÖkwgZ Ki‡Z 27.8 mL 0.02 M

Ki| 3 K2Cr2O7 `ªe‡Yi cÖ‡qvRb n‡j AvKwi‡K †jvnvi

N. DÏxcK wZbwU `ªeY‡K wgwkÖZ Ki‡j wgkÖ‡Yi cÖK…wZ kZKiv cwigvY KZ? 3

†Kgb n‡e? wgkÖYwU‡K Kxfv‡e m¤ú~Y© wbi‡cÿ Kiv N. DÏxcK wewµqvwU B‡jKUªb ¯’vbvšÍ‡ii gva¨‡g N‡U‡Q

hv‡e? MvwYwZKfv‡e †`LvI| 4

wK? cÖ‡qvRbxq mgxKiYmn e¨vL¨v Ki| 4

3 7

Avi‡R‡jwmqvm c`v_© K¨vj‡Kwiqvm c`v_©

K. KvBivj Kve©b Kx? 1 AB

L. †Kv¬ ‡ivdig‡K iwOb †evZ‡j ivLv nq †Kb? 2 K. wimvBwK¬s Kv‡K e‡j? 1

M. DÏxcK wewµqvi †KŠkj eY©bv Ki| 3 L. KvP wk‡ívrcv`‡b wKD‡jU e¨envi Kiv nq †Kb? 2

N. A Gi Øviv MwVZ m¤¢ve¨ mgvY¸y ‡jvi bvg I ms‡KZ M. DÏxcK c`v_©Øq‡K Kvu Pvgvj wnmv‡e e¨envi K‡i

wjL Ges Kx Kx mgvYyZv ˆZwi nq †`LvI| 4 wm‡g›U cÖ¯‘wZ eY©bv Ki| 3

4 N. Dc‡iv³ wkí KviLvbv †_‡K wbM©Z eR©¨ Avgv‡`i

B gas cwi‡ek‡K Kxfv‡e ÿwZ mvab K‡i Ges Gi m¤¢ve¨

PV A gas cÖwZKvi Kxfv‡e Kiv hvq e¨vL¨v Ki| 4

8  (i) Zn/Zn2+; E = + 0.76 V

P (ii) Cu/Cu2+; E =  0.34 V 1
(iii) Ag/Ag+; E =  0.88 V
K. e¨vcb Kx? 1
K. B‡jK‡Uªv‡cøwUs Kx?

L. †mjwmqvm †¯‹j ZvcgvÎv‡K †Kjwfb †¯‹‡j L. Al Gi Zwor ivmvqwbK Zjz ¨vs‡Ki gvb wbY©q Ki| 2

iƒcvšÍwiZ Ki‡Z 273 †hvM Ki‡Z nq †Kb? 2 M. (i) I (ii) bs Zwo`Øvi Øviv MwVZ †Kv‡li ms‡KZ,

M. M¨vm m~θ‡jvi mvnv‡h¨ A M¨v‡mi Ae¯v’ i mgxKiYwU wPÎ Ges msNwUZ wewµqv¸‡jv wjL| 3

cÖwZcv`b Ki| 3 N. Zn2+ `ªe‡Yi NbgvÎv 1.5  104 M n‡j, 37C
ZvcgvÎvq (i) I (iii) bs Zwo`Øvi Øviv MwVZ †Kv‡li
N. DÏxc‡K B M¨v‡mi Rb¨ †iLvwU A M¨v‡mi gZ bv wef‡ei cwieZ©b †Kgb n‡e? MvwYwZKfv‡e †`LvI| 4

nIqvi KviY e¨vL¨v Ki| 4

mR„ bkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  47

47 ivRDK DËiv g‡Wj K‡jR, XvKv welq ˆKvW : 1 7 7

mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ mR„ bkxj cÖkœ c~Y©gvb : 50

[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi c~Y©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó ckÖ œ¸‡jvi DËi `vI| †h †Kv‡bv cvu PwU cÖ‡kœi DËi w`‡Z n‡e|]

1  (i) H3C  Cl + KOH(aq)  H3C  OH + KCl 5

(ii) (a) H3C  CHO (b) H3C  COOH 1

K. Kv‡e©vK¨vUvqb Kx?

L. †iwmwgK wgkÖY Kx? D`vniY `vI| 2

M. (i) bs wewµqvwUi †KŠkj eY©bv Ki| 3

N. (ii) bs DÏxc‡K D‡jøwLZ †hŠM¸‡jv kbv³Ki‡Y

2 GKwU K‡i cixÿv wjL| 4 K. †ccUvBW eÜb Kx? 1

K. 25C 25C L. CGS c×wZ‡Z R Gi gvb wbY©q Ki| 2
L. 0.5 g 0.4 g
760 mm(Hg) 770 mm(Hg) M. A cv‡Îi `ªe‡Yi NbgvÎv ppm GK‡K wbY©q Ki| 3
400 mL 350 mL
N. DÏxc‡Ki `ªeYØq‡K GK‡Î wgwkÖZ Ki‡j wgwkÖZ
A-M¨vm B-M¨vm
`ªe‡Yi cKÖ …wZ Kxiƒc n‡e? MvwYwZKfv‡e we‡kølY Ki| 4
BOD Kx? 1
U‡UvgvwiRg Kx? D`vniY `vI| 2 6

M. 'B' cv‡Îi M¨v‡mi AvYweK fi wbY©q Ki| 3 B

N. ÷cKK©wU Ly‡j w`‡j M¨vm wgkÖ‡Yi †gvU Pvc GKB PV A
ZvcgvÎvq Ges 30 C ZvcgvÎvq KZ n‡e Zv wbY©q Ki| 4

3

BDwiqv wkí  eR©¨ K. P 1
L.
K. msKU ZvcgvÎv Kx? 1 cÖgvY Zwo`Øvi wefe Kx?
L. M.
M. CFC Kxfv‡e I‡Rvb ¯Íi‡K ÿq K‡i? 2 NH3 + H2O F ? + ?; wewµqvwU c~Y© K‡i Abey Üx A¤ø
N. N.
DÏxc‡Ki wk‡íi Drcv`‡bi gj~ bxwZ eY©bv Ki| 3 I Abey Üx ÿviK e¨vL¨v Ki| 2
4 7
DÏxc‡Ki wkíØviv mó„ `l~ K I Gi ÿwZKi cÖfve B-M¨vmwUi AvYweK fi 16 n‡j 25 C ZvcgvÎvq

Av‡jvPbv Ki| 4 M¨vmwUi eM©gj~ Mo eM©‡eM wbY©q Ki| 3

Ley wb¤œPvc Ges D”P ZvcgvÎvq 'B' M¨vmwU 'A'

e e M¨v‡mi b¨vq AvPiY K‡i we‡kølY Ki| 4

H2
H+

H2 H+ O2 K. wimvB‡Kj Kx? 1

AwZwi³ R¡vjvwb H+ H2O L. NH3 Ges H3C  NH2 Gi g‡a¨ †KvbwU AwaK

cvwb

A¨v‡bvW K¨v‡_vW ÿviagx©? †Kb? 2

cwjgvi B‡j‡±ªvjvBU M. DÏxc‡Ki 'A' Drcv‡`i cÖwZ¯’vcK A‡_©v I c¨viv
wPÎ-1
wb‡`©kK e¨vL¨v Ki| 3
V
N. DÏxc‡Ki wewµqvwUi †KŠkj eYb© v Ki| 4
jeY †mZz
8  2.0 g f‡ii †jvnvi AvKwiK‡K jNy H2SO4 G `ªexf‚Z K‡i
Zn Cu 200 mL Kiv n‡jv| G `ªeY †_‡K 25 mL wb‡q UvB‡UªU
Cu2+ SO42
Zn2+ SO42 Ki‡Z 0.02 M 22.5 mL KMnO4 `ªe‡Yi cÖ‡qvRb nq|

K. cøvw÷KZ¡ Kx? 1

0.1 M 0.01 M L. IUPAC c×wZ‡Z wb‡¤œi †hŠM¸‡jvi bvgKiY Ki 2

†hLv‡b, EZn/Zn2+ = 0.76 V, ECu/Cu2+ =  0.34 V 1

wPÎ-2

K. Av‡qvwWwgwZ Kx?

L. cÖgvY Kcvi Zwo`Øv‡ii wefe 0.3394 V ej‡Z Kx eSy ? 2 (ii) H3C  HC = CH  COOH

M. wPÎ-1 G D‡jøwLZ †Kv‡li MVb I Kvh©cYÖ vjx wjL| 3 M. UvB‡Uªk‡b msNwUZ wewµqvwUi Avqb B‡jKUªb

N. 25 C ZvcgvÎvq wPÎ-2 Gi †KvlwUi Zwo”PvjK ej c×wZ‡Z mgZvKiY Ki| 3

(emf) wbY©q Ki| 4 N. DÏxc‡Ki AvKwi‡K †jvnvi kZKiv cwigvY wbY©q Ki| 4

48 XvKv K‡jR, XvKv welq ˆKvW : 1 7 7

mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ cY~ ©gvb : 50

[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi cY~ ©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó ckÖ œ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]

1  wb‡Pi DÏxcKwU jÿ Ki 5  `yB KveÆbwewkÓ¡ AÅvgvBW (A) HNO2  (B)

PV = nRT Ca(HCO3)2 Gi Zvcxq Br2 + KOH
we‡qvR‡b wbM©Z nq (C)
mgxKiY †g‡b P‡j
K. RviY msL¨v Kx? 1

A M¨vm B M¨vm L. SATP GK‡K AvqZ‡bi gvb †e‡o hvq †Kb? 2

K. COD Kx? 1 M. A I C †hŠM؇qi ÿviawg©Zv Zzjbv Ki| 3

L. HCOOH I CH3COOH Gi g‡a¨ †KvbwU AwaK N. B †hŠMwU hyZ wewµqvq AskMÖnY Ki‡e wKbv we‡kølY Ki|4

kw³kvjx Ges †Kb? 2 6  wb‡Pi wPÎwU jÿ Ki

M. 30C Ges 740 mm Pv‡c DÏxc‡Ki A M¨v‡mi 3g

420 mL AvqZb `Lj K‡i| M¨vmwUi AvYweK fi w«¼ Þvixq AÁÏ 0.3M 0.2M MOH

wbY©q Ki| 3 50mL 200mL 1

N. DÏxc‡K A I B M¨v‡mi †ÿ‡Î PV ebvg P †jLwP‡Î cvò A cvò B

M¨vm †iLvi wfbZœ vi KviY we‡kølY Ki| 4 M ‰i cvigvYweK fi = 39

2  wb‡Pi wPÎwU jÿ Ki K. digvwjb Kx?

L. Ag Gi Zwor ivmvqwbK Zjz ¨v¼ 0.00111 g/C e¨vL¨v Ki| 2

1.00 L ÷Ó• evqyGZ 0.925g N2 M. B cv‡Îi `ªeY cÖ¯‘wZ‡Z Kx cwigvY MOH cÖ‡qvRb? 3

25C, 786 mm Hg N. A cv‡Îi `ªeY Øviv B cv‡Îi `ªeY cY~ © cÖkwgZ n‡e

K. jyKvm weKviK Kx? 1 wK? we‡kølY Ki| 4

L. BOD Gi †P‡q COD Gi gvb †ewk nq †Kb? 2 7  wb‡Pi wPÎwU jÿ Ki
M. DÏxc‡Ki M¨vmwUi kZKiv cwigvY wbY©q Ki| 3

N. DÏxc‡Ki †gŠjwUi A·vBW cwi‡e‡ki Rb¨

wec¾bK wKbv we‡kølY Ki| 4 Fe jeY Cu

3 [O] FeSO4 †mZz CuSO4
CH3OH  A

[O] 1M 2M
CH3CH(OH)CH3  B
AB
K. cig ZvcgvÎv Kv‡K e‡j?
1 EFe2+/Fe =  0.44 volt; ECu2+/Cu = 0.34 volt

L. wRs‡Ki cÖgvY weRviY wefe + 0.76V ej‡Z Kx eyS? 2 ZvcgvÎv T = 298 K

M. DÏxc‡Ki A I B Gi g‡a¨ Kxfv‡e ivmvqwbK cv_©K¨ K. Zwor c‡Ö jcb Kx? 1

wbiƒcY Ki‡e? 3 L. Kv‡e©vK¨vUvqb Kxfv‡e ˆZwi nq? 2

N. DÏxc‡Ki A I B GKwU I‡RvbxKiY wewµqvi M. DÏxc‡Ki †KvlwUi B.Gg.Gd wbY©q Ki| 3

Drcv` n‡j wewµqKwUi MVb we‡kølY Ki| 4 N. B cvÎwU Avqib wbwg©Z n‡j †KvlwUi `xN© mgq

4  wb‡Pi DÏxcKwU jÿ Ki msiÿ‡Yi †ÿ‡Î †Zvgvi gZvgZ we‡kølY Ki| 4

CH3 8  wb‡Pi DÏxcKwU jÿ Ki

+ HNO3 Mvp H2SO4 A + B  (1) Pvgov wk͸ eRÅÆ c`v^Æ b`x cwiGek `ƒlY
60ºC C  (2) 
NO2 

+ HNO3 Mvp H2SO4 K. wimvB‡Kj Kx? 1
110ºC
L. A¨vj‡Kvnj cvwb‡Z `ªeYxq †Kb? 2
K. ETP Gi cY~ ©iƒc Kx? 1
M. DÏxc‡K wk‡íi Kvu PvgvjwUi U¨vwbs G Na2Cr2O7 I
L. GKwU Rvi‡K Kx me©`v Aw·‡Rb _vKvi cÖ‡qvRb Av‡Q? 2
H2SO4 Gi f‚wgKv mgxKiYmn wjL| 3
M. 1 bs wewµqvi †KŠkj e¨vL¨v Ki| 3

N. 1 Ges 2 GKB ai‡bi wewµqv nIqv m‡Ë¡I wfbœ N. DÏxc‡K DwjøwLZ wk‡íi cwi‡ek `l~ ‡Y RwoZ

ZvcgvÎvi cÖ‡qvRb nq †Kb? we‡kølY Ki| 4 `~lKmg~n `~ixKiY m¤¢e Kx? we‡kølY Ki| 4

mR„ bkxj imvqb wØZxq cÎ : GKv`k-Øv`k †kÖwY  49

49 ivRkvnx K‡jR, ivRkvnx welq ˆKvW : 1 7 7

mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ mR„ bkxj cÖkœ c~Y©gvb : 50

[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi cY~ ©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó ckÖ œ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]

1  DÏxc‡Ki Av‡jv‡K wb‡Pi cÖkœ¸‡jvi DËi `vI : 5  DÏxc‡Ki Av‡jv‡K wb‡Pi cÖkœ¸‡jvi DËi `vI :

'A' GKwU Pvi Kve©bwewkó Am¤ú„³ ˆRe †hŠM Zn -Gi A gas B gas
15 g 18C
Dcw¯’wZ‡Z I‡Rv‡bvjvBwmm Ki‡j wK‡Uvb (B) I 25C

A¨vjwWnvBW (C) cvIqv †Mj| cvÎ-1 cvÎ-2

K. Av`ª© cÖvKw… ZK M¨vm Kx? 1 GLv‡b, A M¨vmwU eªvB‡bi Zwor we‡køl‡Y A¨v‡bv‡W cvIqv

L. Pvgovi U¨vwbs G wgé Ae jvBg ¸iæZ¡c~Y© †Kb? 2 hvq Ges B M¨vmwU nvB‡Wªv‡Rb dz‡qj †m‡j RviK wn‡m‡e

M. wewµqvmn A, B I C †hŠM wPwýZ ce~ ©K Zv‡`i e¨enZ„ nq|

IUPAC bvg wjL| 3 K. A¨vwbwjs Kx? 1

N. B I C †hŠ‡Mi g‡a¨ †KvbwU A¨vjWj Nbxfeb Ges L. evqyi bvB‡Uªv‡Rb Dw™`¢ wKfv‡e jeYiƒ‡c MÖnY K‡i

†KvbwU K¨vwbRv‡iv wewµqv †`q-wewµqvmn KviY ewy S‡q wjL| 2

we‡kølY Ki| 4 M. cvÎ-1 G Aew¯’Z M¨vmwUi MwZkw³ wbY©q Ki| 3

2  DÏxc‡Ki Av‡jv‡K wb‡Pi cÖkœ¸‡jvi DËi `vI : N. cvÎ-2 G Aew¯’Z M¨vmwUi ZvcgvÎv KZ cwieZ©b

AvswkK AvswkK Ki‡j DÏxc‡Ki M¨vm؇qi RMS †eM mgvb n‡e?
AvjKvZiv cvZb  ga¨g ˆZj cvZb  B
(170  230C) (180  183C) MvwYwZK we‡kølY `vI| 4

Zn P‚Y© wg_vB‡jkb Zxeª RviY 6  DÏxc‡Ki Av‡jv‡K wb‡Pi cÖkœ¸‡jvi DËi `vI :

cvZb C  D  E (i) (K) cÖvKw… ZK M¨vm (L) A¨v‡gvwbqv

AlCl3 (ii) wMÖb nvDR M¨vmmg~n KqjvwfwËK we`y¨r †K›`ª

K. GKK Zwo`Øvi wefe wK? 1

L. A¨v‡µvwjb cixÿvwU e¨vL¨v Ki| 2 A B

M. B †hŠMwU wPwýZ c~e©K Zv †_‡K c¨vivwmUvgj cÖ¯‘wZi K. †MøwRs Kx? 1

mgxKiY `vI| 3 L. ey‡jU cÖæd KvP Kx Ges †Kv_vq e¨enZ„ nq? 2

N. B I E †hŠ‡Mi mwµqZv I A¤øawg©Zvi Zzjbvg~jK M. DÏxc‡Ki (i) G D‡jwø LZ Kvu Pvgvj¸‡jv †h

we‡kølY `vI| 4 wk‡ívrcv`‡b e¨enZ„ nq Zvi g~jbxwZ wewµqvmn wjL| 3

3  DÏxc‡Ki Av‡jv‡K wb‡Pi cÖkœ¸‡jvi DËi `vI : N. DÏxcK (ii) Gi A-cv‡Îi GKwU M¨vm g~jZ

10 cm3 I‡Rvb¯Íi‡K aŸsm K‡i Ges B -Gi GKwU M¨vm

†mw›U‡gvjvi 20 cm3 g~jZ GwmW ew„ ó mw„ ó K‡i-hwy ³mn we‡kølY Ki| 4

A·vwjK GwmW KwóK cUvk 1+2 7  DÏxc‡Ki Av‡jv‡K wb‡Pi cÖkœ¸‡jvi DËi `vI :

12 3 20 cm3 10 mL A¤øxq †divm
mvj‡dU
K. ¯^ZtwiW· wewµqv Kx? 1 †Wwm‡gvjvi cUvwmqvg `ªeY
A·vwjK WvB‡µv‡gU
L. we‡kølY imvq‡bi AAS h‡š¿i cÖ‡qvM e¨vL¨v Ki| 2 GwmW `ªeY
`ªeY
M. 2 bs cv‡Îi `ªeY‡K c~Y© cÖkg‡bi Rb¨ 1 bs cv‡Îi
A B C
`ªeY cÖ‡qvRb n‡j 2 bs cv‡Îi `ªe‡Yi kw³gvÎv ppm
K. †Udjb Kx? 1

GK‡K wnmve Ki| 3 L. IR - eYv© wjwgwZi mvnv‡h¨ wKfv‡e †cÖvcvb¨vj I

N. 3 bs cv‡Î cÖkgb wewµqvq Dch³y wb‡`©k‡Ki eY© †cÖvcv‡bvb Gi g‡a¨ cv_©K¨ Ki‡e? 2

cwieZ©‡bi †KŠkj e¨vL¨v Ki| 4 M. DÏxc‡Ki B I C `ªe‡Yi wgkÖ‡Y msNwUZ wewµqvwU

4  DÏxc‡Ki Av‡jv‡K wb‡Pi cÖkœ¸‡jv DËi `vI : Avqb-B‡jKUªb c×wZ‡Z mgZv K‡i †`LvI| 3

AB B N. DÏxc‡Ki A I B `ªe‡Yi mvnv‡h¨ C `ªe‡Y Avqi‡i
A
cwigvY wnmve K‡i †`LvI| 4
E = 1.66 V
0.1 M 8  DÏxc‡Ki Av‡jv‡K wb‡Pi cÖkœ¸‡jvi DËi `vI :
A3+/A

0.5 M E =  1.18 V Kcvi B_vbvBW‡K Av`ª© we‡kølY Ki‡j 'X' †hŠM Drcbœ nq| 'X' †K
ACl3 BCl2
B2+/B

0.1 M ACl3 0.5 MBCl2 E =  0.76V

C2+/C 400C ZvcgvÎvq †jŠnb‡ji g‡a¨ Pvjbv Ki‡j Y Ges G‡K

†Kvl-1 †Kvl-2 bvB‡Uªkb Ki‡j Z Ges Z-†K weRvwiZ Ki‡j W cvIqv hvq|

K. †evëRg¨vb aæª eK Kx? 1

L. H2 I He M¨vm‡K mivmwi Ryj-_gmb cÖfve Øviv K. m¨vwjmvBwjK Gwm‡Wi IUPAC bvg wjL| 1
L. MøvBwmb Av‡jvK mwµq bqe¨vL¨v Ki| 2
Zi‡j cwiYZ Kiv hvq bv †Kb? 2

M. Zwor Drcv`‡bi †ÿ‡Î †Kvl-1 I †Kvl-2 Gi g‡a¨ M. X Gi mg‡MvÎxq †kÖwYi 2q m`m¨ n‡Z Kv‡e©vwbj

†KvbwU AwaK Kvh©Ki Ges †Kb? 3 †hŠM ˆZwi K‡i †`LvI| 3

N. †Kvl-2 Gi weRviY cv‡Îi `ªeYwU‡K A I C Øviv N. DÏxc‡Ki Z I W †hŠM؇qi mvj‡dv‡bkb wewµqvq

wbwg©Z cvÎ؇qi g‡a¨ †KvbwU‡Z msiÿY m¤¢e? cÖwZ¯’vc‡Ki Ae¯’vb wfbœZvi KviY-†i‡Rvb¨v‡Ýi

MvwYwZK we‡kølY `vI| 4 Av‡jv‡K we‡kølY Ki| 4

50 wbD Mft wWMÖx K‡jR, ivRkvnx welq ˆKvW : 1 7 7

mgq : 2 NÈv 35 wgwbU imvqb wØZxq cÎ m„Rbkxj cÖkœ cY~ ©gvb : 50

[`ªóe¨ : Wvb cv‡ki msL¨v cÖ‡kœi cY~ ©gvb ÁvcK| cÖ`Ë DÏxcK¸‡jv g‡bv‡hvM mnKv‡i co Ges mswkøó ckÖ œ¸‡jvi DËi `vI| †h †Kv‡bv cuvPwU cÖ‡kœi DËi w`‡Z n‡e|]

1 5

ion ion

Electrode A Electrode K. BD‡Uªvwd‡Kkb Kx? 1
B
L. bevqb‡hvM¨ R¡vjvwb ej‡Z Kx eySvq? 2

Solution Solution M. DÏxc‡Ki A, B I C †hŠM·qi g‡a¨ Kxfv‡e cv_©K¨

K. ms‡KvPbkxjZv ¸Yv¼ Kx? 1 Ki‡e Zv wewµqvmn e¨vL¨v Ki| 3

L. M¨vm ZijxKi‡Y ïay Pvc ew„ × bq, ZvcgvÎvI Kgv‡Z N. DÏxc‡Ki A, B I C †hŠM·qi Kvh©Kix gj~ K

nq e¨vL¨v Ki| 2 kbv³Ki‡Y `wy U ivmvqwbK I IR eY©vwjwgwZK c×wZ

M. DÏxc‡Ki Zwo`Øvi؇qi MV‡bi gj~ bxwZ e¨vL¨v Ki| 3 we‡kølY Ki| 4

N. DÏxc‡Ki †KvlwU‡K †Wwb‡qj †Kv‡l iƒcvšÍi K‡i 6  (i) CH3 CH = CH  CH3

†Kvl WvqvMÖvg I wewµqvmn †Kvl wefe wbY©q m¤¢e (ii) CH3  CH(OH)  COOH

wKbv we‡kølY Ki| 4 K. HPLC Kx? 1

2 L. RviY-weRviY wewµqv hyMcrfv‡e N‡U e¨vL¨v Ki| 2

wf‡bMvi NaOH M. DÏxc‡Ki †hŠM؇qi †÷wiI mgvYyZv e¨vL¨v Ki| 3
M
6% W/V 2 N. DÏxc‡Ki (i) bs †hŠ‡Mi kbv³Ki‡Yi `wy U c×wZ

A B wewµqvmn we‡kølY Ki| 4

K. KzwKs wjKvi Kx? 1 7  Zn + HCl  A2(g) + ZnCl2

L. Fe3+ GKwU RviK e¨vL¨v Ki| 2 65.4 MÖvg Zn n‡Z cÖvß A2 M¨vm‡K cvwbi EaŸ©gLy x

M. DÏxc‡Ki A `ªe‡Yi 10 mL †K cÖkwgZ Ki‡Z B Acmvi‡Yi gva¨‡g msMÖn K‡i 27C ZvcgvÎvq Gi AvqZb

`ªe‡Yi KZ AvqZb jvM‡e wbY©q Ki| 3

N. DÏxc‡Ki A `ªeY‡K B `ªeY Øviv UvB‡Uªkb Ki‡Z cvIqv †Mj 20 wjUvi|
†Kvb wb‡`©kK Dchy³ n‡e? wPÎmn we‡kølY Ki| 4
K. cÖgvY †Kvl wefe Kv‡K e‡j? 1

3 230 C L. wmjfv‡ii Zwor ivmvqwbK Zjz ¨vsK 0.001118 g C1
(i) A  B + H2O

 ej‡Z Kx eyS? 2
(ii) B + Br2 + 4NaOH  C + 2NaBr + Na2CO3 + 2H2O
K. c¨vivwdb Kx? 1 M. DÏxc‡Ki A2 M¨v‡mi Pvc wnmve Ki| 3

L. A¨vwmwUwj‡bi cÖvšÍxq nvB‡Wªv‡Rb A¤øxq e¨vL¨v Ki| 2 N. DÏxc‡Ki A2 M¨vmwUi Kx Av`k© M¨v‡mi Ae¯v’ i

M. DÏxc‡Ki C †hŠ‡Mi kbv³KiY cixÿv wewµqvmn mgxKiY †g‡b Pj‡e? cÖ‡qvRbxq cwieZ©bmn we‡kølY

e¨vL¨v Ki| 3 Ki| 4

N. wMÖMbvW© weKviK n‡Z DÏxc‡Ki B †hŠM cÖ¯‘Z Kiv 8

m¤¢e wKbv wewµqvmn we‡kølY Ki| 4 `l~ K Drm gvbe‡`‡n mw„ óKvix †ivM

4 A U¨vbvwi, Wvwqs K¨vbmvi, k¦vmhš¿ ÿwZMÖ¯’,

wkí Drcvw`Z cY¨ BZ¨vw` i³¯^íZv BZ¨vw`

A Na2O.CaO.6SiO2 B e¨vUvwi, i³¯^íZv, wkïi gw¯Í‡®‹i

B 3CaO.SiO2 R¡vjvwb BZ¨vw` ew„ × e¨vnZ BZ¨vw`
2CaO.SiO2
3CaO.Al2O3 1 K. mg‡MvÎxq †kÖwY Kx? 1

4CaO.Al2O3.Fe2O3 L. A¨v‡iv‡gwUwmwU e¨vL¨v Ki| 2

K. cvwbi LiZv Kx?

L. I‡Rvb ¯Íi ÿq wkKj wewµqvi gva¨g N‡U e¨vL¨v M. DÏxc‡Ki `l~ K؇qi Lv`¨ k„•L‡j h³y nIqvi KviY
Ki| 2
e¨vL¨v Ki| 3
M. DÏxc‡Ki A wk‡íi Drcv`‡bi gj~ bxwZ e¨vL¨v Ki| 3
N. DÏxc‡Ki B wk‡í Drcvw`Z c‡Y¨ Dcv`vb¸‡jvi N. Dch³y e¨e¯’v MÖn‡Yi gva¨‡g DÏxc‡Ki `l~ KØq

AbycvZ mwVK bv n‡j c‡Y¨i ¸Yv¸Y bó nq KZ…©K cwi‡ek `l~ Y †iva Kiv m¤¢e ivmvqwbK

we‡kølY Ki| 4 wewµqvmn hyw³wU we‡kølY Ki| 4