2.2 Chemistry Plus

626 •Re imvqb CHEMISTRY PLUS ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES C6H12O6 Na2SO3 CH2 CH CH2+CH3 CHO+CO2 OH OH OH Có STEP 04 ANALYSIS OF MEDICAL & HSC QUESTION MAT 01. MVb Abymv‡i A¨vwgb wb‡gœi KZ cÖKvi? [MAT.2011-2012,2003-2004) A. `yB B. Pvi C. wZb D. cvuP mwVK DËi : C. wZb 02. wb‡gœi †KvbwU WvB wg_vBj A¨vwgb Gi ms‡KZ? [MAT.2008-2009] A. CH3NH2 B. C2H5NH2 C. C2H5OH D. (CH3)2NH mwVK DËi : D. (CH3)2NH 03. A¨vwg‡bi mvaviY bvgKiY c×wZ‡Z CH3CH2NHCH3 A¨vwg‡bi bvg n‡jv- [MAT. 2006-07] A. B_vBj wg_vBj A¨vwgb B. B_vBj A¨vwgb C. AvB‡mv †cÖvcvBj A¨vwgb D. UªvB wg_vBj A¨vwgb mwVK DËi: A. B_vBj wg_vBj A¨vwgb 04. H3CNH2 I C6N5NH2 Gi g‡a¨ cv_©KxKi‡Y †h weKviKwU e¨eüZ n‡e Zv n‡”Q [MAT.2003-2004) A. NaNO2+HCl B. NHO3 C. Mvp H2SO4 D. H3COCl mwVK DËi : A. NaNO2+HCl 05. RCN †K RCH2NH2 †Z cwiYZ Ki‡Z †h weKviK jvM‡e Zv n‡”Q- [MAT. 2002-03] A. CH2COCl B. LiAlH4 C. KMnO4 D. KCN mwVK DËi: B. LiAlH4 06. A¨vwgbmg~n •Re †h․M ms‡køl‡Y wK wnmv‡e e¨eüZ nq? [MAT.2001-2002] A. wbDwK¬‡qvwdwjK B. wbDwK¬‡qvdvBj C. wbDwK¬‡qvUvBW D. ‡KvbwUB bq mwVK DËi : B. wbDwK¬IdvBj e¨vL¨v: †h me Avqb ev †h․M abvZ¥K Avq‡bi cÖwZ AvK…ó nq Zv‡`i wbDwK¬‡qvdvBj ejv nq| A¨vwgbmg~‡n –NH2 we`¨gvb _v‡K hv abvZ¡K Avq‡bi cÖwZ AvK…ó nq| ZvB A¨vwgb mg~n wewfbœ •Re †h․M ms‡køl‡Yi mgq wbDwK¬‡qvdvBj wn‡m‡e KvR K‡i| D`vniYt –OH, –CH, –NH2 g~jK hy³†h․M¸‡jv wbDwK¬‡qvdvBj wn‡m‡e KvR K‡i| 07. C2H5OH Gi mv‡_ 140C ZvcgvÎvq H2SO4 Gi wewµqvq †KvbwU Drcbœ nq? [MAT. 2001-02, SUST 2007-2008] A. C2H5OC2H5B. C2H5OCH3C. CH3OCH3 D. me¸‡jv mwVK DËi: A. C2H5-O-C2H5 e¨vL¨v: 2C2H5OH + H2SO4 C2H5OC2H5 + H2O + H2SO4 PART 12 K‡qKwU cÖ¯‧wZ, kbv³KiY I e¨envi Item- 01t wMømvwib cÖ¯‧wZ, kbv³KiY I e¨envitÑ cÖv_wgK K_vtÑ Avwe®‥vit 1779 mv‡j weÁvbx kx‡j wMømvwib Avwe®‥vi K‡ib| wMømvwi‡bi Av‡cwÿK ¸iæZ¡t 1.26 wMømvwi‡bi e‡qwjs c‡q›U (b.p) t 290C mvevbvqbt mvevb •Zwii cÖwµqv‡K m¨v‡cvwbwd‡Kkb ev mvevbvqb e‡j| ‡Zj ev Pwe©i ÿvixq Av`ª© we‡køl‡Y mvevb •Zwi nq| mvvev‡bi mvaviY bvg w÷qv‡iU (‡mvwWqvg w÷qv‡iUÑC17H35COONa)| mvevb wk‡íi cÖavb DcRvZ n‡”Q wMømvwib| cUvwkqvg mvevb nj Soft Soap (‡mwfs wµg) Avi Uq‡jU †mvc n‡”Q ‡mvwWqvg mvevb| wMømvwib cÖ¯‧wZtÑ ÿv‡ii Rjxq `ªeY Øviv Av`ª©we‡kølYtÑ GwU g~jZ mvevbvqb cÖwµqv| †Zj ev Av`ª©we‡køl‡Y mvevb •Zix nq| CH2 O C R O CH O C R O CH2 O C R O +3NaOH Zvc CH2 OH CH OH CH2 OH +3R COONa (‡Zj ev Pwe©) (wM-mvwib) mvevb (wMømvwib) dvi‡g‡›Ukb cÖwµqvtÑ †R‡b ivLv fvjt GQvovI GwmW Øviv Pwe©i Av`ª©we‡kølY cÖwµqv Ges AvaywbK c×wZ‡Z †cÖvwcb †_‡K Av`ª©we‡kølY cÖwµqv wMømvwib Drcbœ nq| D‡jøL¨ mvevb wk‡í wMømvwib GKwU DcRvZ ev evB‡cÖvWv±| wMømvwib kbv³KiYtÑ A¨v‡µvwjb cixÿvtÑ CH2 OH CH OH CH2 OH (wM-mvwib) ev,P2O5Zvc CH2 CH+2H2O CHO (A¨v‡µvwjb) KHSO4 wMømvwib

CHEMISTRY PLUS •Re imvqb 627 ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES NO2 CH3 NO2 NO2 GK bR‡i wMømvwib kbv³KiY •ewkó¨tÑ cixÿvi bvg weKviK Drcv` ev kbv³Kvix •ewkó¨ A¨v‡µvwjb cixÿv KHSO4 ev P2O5 A¨v‡µvwjb (Zxeª DrKU MÜ) KMnO4 `ªeY cixÿv jNy H2SO4 + KMnO4 wMømvwiK GwmW (jvj‡P †e¸bx eY© `~ixf~Z nq) ‡eviv· †dbd_¨vwjb cixÿv Na2B4O7.7H2O + 2-3 †dvUv ‡dbd_¨vwjb ‡dbd_¨vwj‡bi †Mvjvcx eY© A`„k¨ nq, cybivq DËß Ki‡j †Mvjvcx eY© wd‡i Av‡m cÖwZ¯
vcb wewµqv wMømvwib + avZe Na ey`ey`mn nvB‡Wªv‡Rb M¨vm wMømvwi‡bi e¨envit Jla wk‡í, †jvkb I wMømvwib evwZ •Zix‡Z e¨eüZ nq| bvB‡UªvwMømvwib •Zwi‡Z (wWbvgvBU •Zwii cÖavb Dcv`vb) e¨eüZ nq| ‡gvUi Mvwoi wng‡ivaK, Qvcvi Kvwj, †kwfs †jvkb I cøvw÷K cÖ¯‧wZ‡Z wMømvwib e¨eüZ nq| we‡kl Z_¨: †¯ú›U jvB Gi ga¨ 3-5% wMømvwib _v‡K| Gi g‡a¨ A¨vjvg ev wdUwKwi [K2SO4.Al2(SO4)3.24H2O] †hvM K‡i Ac`ªe¨ Aatwÿß I wdëvi K‡i cwikÖæZ‡K wb¤œPv‡c cvZb Ki‡j 80% wMømvwib cvIqv hvq| †cÖvwcb n‡Z eZ©gv‡b ms‡kølY cÖYvwj‡Z cÖvq 70% wMømvwib Drcv`b Kiv n‡q _v‡K| wMømvwi‡bi kbv³KiY ZvcgvÎv: 35C| Item- 02t bvB‡ªUªvwMømvwib cÖ¯‧wZ, kbv³KiY I e¨envitÑ cÖv_wgK K_vtÑ bvB‡UªvwMømvwib GKwU we‡ùviK Zij Dcv`vb| wWbvgvBU •Zwi‡Z e¨envi Kiv nq Gi Av‡cwÿK ¸iæZ¡ 1.6 Ges Mjbv¼ 13.2C| bvB‡UªvwMømvwib cÖ¯‧wZtÑ CH2 OH CH OH CH2 OH +3HO NO2 (wM-mvwib) H2SO4 CH2 O CH O CH2 O (bvB‡UªvwM-mvwib) NO2 NO2+3H2O NO2 Mvp wMømvwib (bvB‡UªvwMømvwib) bvB‡UªvwMømvwi‡bi e¨envit wewfbœ Av‡MœqA¯¿ Gi (ivB‡dj, wc¯Íj, kU©Mvb) Mvb cvDWv‡ii Dcv`vb wn‡m‡e e¨envi nq| bvB‡UªvwMømvwib evRv‡i U¨ve‡jU AvKv‡i cvIqv hvq| hv 130 eQi a‡i ü`wcÛ, Angina pectoris Ges nuvcvwbi wPwKrmvq e¨eüZ n‡”Q| wWbvgvBU •Zwi‡Z bvB‡UªvwMømvwib e¨eüZ nq| wewfbœ ¯
vcbv aŸs‡mi Kv‡R e¨eüZ nq| i³Pvc n«vm K‡i I cÖ‡÷U K¨vÝv‡ii wPwKrmv‡Z e¨eüZ nq| bvB‡UªvwMømvwib e¨env‡i mgm¨v n‡jv Zij Ae¯
vi †P‡q KwVb Ae¯
vq †ewk we‡ùvi‡Yvb¥yL nq Ges 13C ZvcgvÎvq RgvU †eu‡a KwVb nq| Z‡e eZ©gvb Bw_wjb MøvBKj WvBbvB‡Uª‡Ui mv‡_ wgwk‡q wb‡q Gi Mjbv¼ (freezing point) wb¤œZvcgvÎv 29C G ivLv nq| GwU 50-60C ZvcgvÎvq we‡qvwRZ n‡Z _v‡K Ges 218C G we‡ùvwiZ nq| ZLb wb¤œiƒc ivmvqwbK wewµqv msNwUZ nq| 4C3H5(ONO2)3 AvNvZ –––– K¤úb 6N2(g) + 12CO2(g) + 10H2O(g) + O2(g) †R‡b ivLv fv‡jvtÑ 1866 mv‡j Avj‡d«W †bv‡ej GwU Avwe®‥vi K‡ib| gRvi welq n‡jv †bv‡e‡ji wPwKrmvq bvB‡UªvwMømvwib †meb Ki‡Z †`qv n‡qwQj| Item- 03t TNT ev 2, 4, 6 UªvBbvB‡UªvUjyBb m¤úwK©Z Z_¨vewjt cÖv_wgK K_vtÑ Avwe®‥vit 1863 mv‡j Rvgv©b weÁvbx Rywjqvm DBjeªvÛ TNT Avwe®‥vi K‡ib| TNT njy` e‡Y©i ùwUKvi KwVb c`v_©| TNT Gi e‡qwjs c‡q›U (b.p) t 81C| TNT ms‡KZt TNT Gi e¨envit TNT kw³kvjx wbivc` we‡ùviK hv cyiv‡bv ¯
vcbv fvO‡Z e¨eüZ nq| Ab¨vb¨ we‡ùviK `ª‡e¨i †P‡q GwU AwaK ¯
vqx| TNT ‡evgv, nvZ‡evgv, ‡MÖ‡bW I †kj •Zwi‡Z e¨envi nq| Amatol bvgK we‡ùviK •Zwi‡Z e¨eüZ nq| ‡R‡b ivLv fv‡jvt TNT Gi cÖ¯‧wZ‡Z ZvcgvÎv †Kvb Ae¯
v‡ZB 60C Gi Dc‡i †bqv hv‡e bv| KviY G‡Z we‡õviY NU‡e|

628 •Re imvqb CHEMISTRY PLUS ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES OH H3C CH3 Cl ‡WUj +(CH3CO)2 H2O OH NH2 OH NH C CH3 O K¶ ZvcgvÎv +CH3COOH 4-A¨vwg‡bv‡dbj c¨vivwmUvgjt 4-(N-B_v‡bvwqj A¨vgvB‡bv) †dbj Item- 04t ‡WUj m¤úwK©Z Z_¨ewjt cÖv_wgK K_vtÑ †WUj GKwU †UªW bvg hv †iwKU †ebwKmvi (Reckitt Benckiser) Øviv Gw›U‡mcwUK cY¨mg~n‡K eySvq| †WU‡ji cÖ¯‧wZg~jK Z_¨tÑ ‡WUj Gi g~j Dcv`vb †K¬v‡ivRvBwjbj (4.8% w/v) Gi AvYweK ms‡KZt C8H9ClO MvVwbK ms‡KZt ‡WU‡ji e¨envitÑ ‡K¬v‡ivRvBwjbjt e¨vK‡Uwiqv we‡ivax hv RxevYybvk Kivi cvkvcvwk cÖ`vn n«vm K‡i| AvB‡mv‡cÖvcvBj A¨vj‡Kvnjt ÿZ¯
v‡b QÎvK I RxevYy msµgY †iva K‡i| cvBb A‡qjt cvBb A‡qj Gi cPb †ivaK Ges msµvgK we‡ivax f~wgKv Av‡Q| K¨v÷i †Z‡ji mvevbt mwµq Dcv`vb Am¤ú„³ d¨vwU GwmW †iwm‡bvwjK hv †dbj‡K †WU‡ji g‡a¨ Wywe‡q iv‡L| †R‡b ivLv fv‡jvt †WU‡ji •ewkó¨m~PK MÜwU g~jZt cvBb A‡q‡ji Rb¨B cvIqv hvq| Item- 05t c¨vivwmUvgjtÑ cÖv_wgK K_vtÑ 4 nvBWªw· A¨vwmU¨vwbjvBW ev N–(4– nvBWªw·wdbvBj) B_vb¨vgvBW‡K c¨vivwmUvgj e‡j| c¨vivwmUvgj cÖ¯‧wZtÑ A¨vwg‡bv‡dbj‡K B_v‡bvwqK A¨vbnvBWªvBW Øviv A¨vwmUvB‡jkb Ki‡j c¨vivwmUvgj Drcbœ nq| c¨vivwmUvg‡ji e¨envitÑ R¡i I gv_ve¨_v wbeviK ev Gbvj‡RwmK wn‡m‡e e¨envi Kiv nq, mw`©-d¬z Dckg wn‡m‡eI KvR K‡i| †`‡ni ZvcgvÎv 101.3 dv‡ibnvBU ev 38.5C Gi †ewk n‡j c¨vivwmUvgj †L‡Z n‡e| Item- 06t A¨vmwcwib: wkí‡ÿ‡Î †dbj‡K CO2 I NaOH Gi mv‡_ D”P Pvcmn DËß Ki‡j m¨vwjmvBwjK GwmW Drcbœ nq| m¨vwjmvBwjK GwmW‡K B_vbwqK A¨vbnvBWªvBWmn wid¬v· Ki‡j A¨vwmUvBj m¨vwjmvBwjK GwmW ev A¨vmwcwib Drcbœ nq| ONa + CO2 4-7 atm 120C OH COONa HCl OH COOH m¨vwjmvBwjK GwmW (CH3CO)2O ÿviK O.OCCH3 COOH + CH3COOH A¨vmwcwib OH NaOH c¨vivwmUvgj I A¨vmwcwi‡bi g‡a¨ cv_©K¨: c¨vivwmUvgj A¨vmwcwib Aw¯
-mwÜi e¨v_v-†e`bv c¨vivwmUvgj Kgv‡Z cv‡i| Aw¯
-mwÜi †dvjv ev cÖ`vn Kgvq| AwaK M¨vw÷ªK GwmW wbtmi‡Y AvµvšÍ †ivMxi †ÿ‡Î c¨vivwmUvgj e¨envi Ki‡Z nq| wKš‧ A¨vmwcwib e¨envi Kiv hvq bv, KviY cvK¯
jxi ÿZ¯
v‡b i³ÿiY e„w× K‡i| c¨vivwmUvgj i‡³i NbZ¡ cwieZ©b K‡i bv| A¨vmwcwib i‡³i NbZ¡ n«vm K‡i| Item- 07t wcKwiK GwmWt ag©t- wcKwiK GwmW njy` e‡Y©i `vbv`vi c`v_©, Mjbv¼ 122 †m| GwU wZZv ¯^v`hy³ GKwU welv³ c`v_©| wZbwU-bvB‡Uªvg~jK we`¨gvb _vKvq GwU †dbj A‡cÿv AwaK kw³kvjx GwmW, ZvB NaHCO3 Gi mv‡_ wewµqv K‡i jeY •Zwi K‡i Ges CO2 wbM©Z nq| wcKwiK GwmW PCl5 Gi m‡½ wcKwij †K¬vivBW Ges Zv c‡i NH3 Gi m‡½ wewµqvq wcKivgvBW MVb K‡i| cÖ¯‧wZt †K¬v‡iv‡ebwRb‡K bvB‡Uªkb I Av`ª© we‡kølY Ki‡j wcKwiK GwmW cvIqv hvq| e¨envit we‡ùviK c`v_© •Zwi‡Z ckgx I †ikgx Kvc‡oi is cÖ¯‧wZ‡Z A¨vwgb I A¨v‡iv‡gwUK nvB‡WªvKve©b kbv³Ki‡Y †cvov I ÿ‡Zi gjg, evY©j •Zwi‡Z wcKwiK GwmW e¨eüZ nq Short Ans Question SAQWRITTEN SUGGESTION BAQ Broad Ans Question cÖkœ-01: †K‡ivwmb I mqvweb †Z‡ji g‡a¨ cv_©K¨ _vK‡j Zv †jL| [DU. 2019-20] DËi: †K‡ivwmb g~jZ Acwi‡kvwaZ †Z‡ji AvswkK cvZb n‡Z cÖvß| cÿvšÍ‡i, mqvweb †Zj GK ai‡bi Dw™¢R †Zj, hv mqvweb n‡Z cÖvß| GQvovI wb‡Pi cv_©K¨¸‡jv cwijwÿZ nq- †K‡ivwmb †Zj mqvweb †Zj 1. m¤ú„³ †Zj 1. Am¤ú„³ †Zj 2. C12C15 n‡jv †K‡ivwm‡bi Kve©b msL¨v 2. ms‡KZ n‡jv C57H98O12 3. GwU GKwU A¨vj‡Kb 3. GwU GKwU Am¤ú„³ wMømvivBW

CHEMISTRY PLUS •Re imvqb 629 ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES cÖkœ-02: †Zj ev Pwe©i I mvev‡bi mvaviY ms‡KZ †jL| †Zj I Pwe©i g‡a¨ cv_©K¨ _vK‡j Zv †jL? [DU. 2019-20] DËi: †Zj ev Pwe©: †Zj ev Pwe©i mvaviY ms‡KZCH2OCR O || CHOCR O || CH2OCR O || mvev‡bi mvaviY ms‡KZ: RCONa, R = C17H35 O || †mvwWqvg w÷qv‡iU cv_©K¨: Kÿ ZvcgvÎvq †Zj Zij Ges Am¤ú„³ (Unsaturated) wKš‧ Pwe© KwVb I m¤ú„³ (Saturated)| †Zj Healthy Ges Pwe© mvaviY Unhealthy cÖkœ-03: wb‡Pi wewµqvwU m¤ú~Y© K‡i: [KUET. 2019-20, BUET. 2018-19] OH (CH3CO)2O HF ? NH2OH ? ? OH NHCOCH3 I II III IV I †_‡K II Ges III †_‡K IV †Kvb ai‡bi wewµqv? [KUET. 2019-20] DËi: OH (CH3CO)2O OH CH3C = O NH2OH OH CH3C = NOH SO2Cl2 CF3COOH OH NHCOCH3 (I) (II) (III) (IV) I †_‡K II A¨vwmUvB‡jkb wewµqv, III †_‡K IV †eKg¨vb cyb©web¨vm wewµqv| cÖkœ-04: Pwe©i ÿviKxq Av`ª© we‡kølY‡K e‡j? [BUET. 2004-05, 2006-07] (i) mvevbvqb (ii) Góvwiwd‡Kkb (iii) dv‡g©b‡Ukb (iv) cwjgviKiY| DËi: (i) mvevbvqb| mvevbvqb wewµqv n‡jv- wMømvivB‡Wi GKwU ÿvixq nvB‡WªvjvBwmm wewµqv cÖkœ-05: wWUvi‡R›U wK? wWUvi‡R‡›Ui ms‡KZ wjL| [RUET. 2005-06] DËi: ivmvqwbKfv‡e wWUvi‡R›U nj `xN© Kve©b wkKjhy³ A¨vjKvBj nvB‡Wªv‡Rb mvj‡dU Gi †mvwWqvg jeY A_ev `xN© Kve©b wkKjhy³ A¨vjKvBj †ebwRb †ebwRb mvj‡dvwbK Gwm‡Wi †mvwWqvg jeY| ms‡KZ: ROSO Na+ ; O O R SO Na+ O O cÖkœ-06: MvVwbK ms‡KZ wjL? [BUET. 2018-19, 2011-12, 2007-08; e.‡ev. 2016, 2015; Awfbœ cÖkœ 2018] (i) G‡µvwjb (ii) TNT (iii) †K¬v‡ivRvBwjbj (iv) c¨vivwmUvgj (v) A¨vmwcwib DËi: Dc‡i ms‡KZ †`Iqv Av‡Q| cÖkœ-07: bvB‡Uªv‡ebwRb †_‡K ‡WUj •Zwii wewµqvi avcmg~n †`LvI| [BUTEX: 19-20] DËi: NO2 + 6[H] Sn + HCl NH2 A¨vwbwjb + 2H2O ; NO2 + NaNO2 + 2HCl (0–5)˚C N + NCl– + NaCl + 2H2O N2Cl +CH3 ï®‥ AlCl3 N2Cl CH3 CH3 H2OHCl (40˚C) OH CH3 CH3 Cl2Fe OH CH3 CH3 Cl ++++ (†K¬v‡ivRvBwjbj ev 4-†K¬v‡iv-3,5-WvBwg_vBj †dbj) †¯úkvj cÖ¯‧wZ wmwiR [†`‡ki †e÷ wUPvi‡`i mgš^‡q M„n wkÿ‡Ki weKí GKgvÎ mnvwqKv]

630 •Re imvqb CHEMISTRY PLUS ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES REAL TEST ANALYSIS OF PREVIOUS YEAR QUESTIONS STEP 01 ANALYSIS OF GENERAL UNIVERSITY QUESTION DU 01. •Re †h․‡M †g․j kbv³KiY Kivi Rb¨ wb‡Pi †Kvb cixÿvwU Kiv nq? [DU-HE. 2019-20; RU.2012-13, 2006-07; CU.2006-07; CVASU. 2018-19] A. Kvwe©j A¨vwgb cixÿv B. †jmvBb cixÿv C. Am¤ú„³Zvi cixÿv D. ejq cixÿv mwVK DËi: B. †jmvBb cixÿv e¨vL¨v: Kvwe©j A¨vwgb cixÿv cÖvBgvix A¨vwgb †jmvBb cixÿv •Re †h․‡M †g․‡ji Dcw¯
wZ wbY©q Am¤ú„³Zvi cixÿv wØeÜb ev wÎe܇bi Dcw¯
wZ ejq cixÿv bvB‡UªU g~jK mbv³KiY JnU 01. †WU‡ji g~j Dcv`vb wK? [JnU-Ka. 2016-17, CU. 2012-13] A. AvB‡mv †cÖvcvbj B. cvBb A‡qj C. ‡K¬v‡ivRvBwjb D. me¸‡jv mwVK DËi: C. ‡K¬v‡ivRvBwjb 02. c¨vivwmUvgj-Gi ms‡KZ †KvbwU? [JnU. 2015-16; CU.2015-16] A. HO – C6H5 – NHCOCH3 B. HOOC– C6H5 –NHCOCH3 C. NH2 – C6H5–NHCOCH3 D. †KvbwUB bq mwVK DËi: A. HO – C6H5 – NHCOCH3 e¨vL¨v: HO–C6H5–NHCOCH3 (c¨vivwmUvgj) 03. wWUvi‡R›U Gi ms‡KZ †KvbwU? [JnU.2009-2010] A. C17H35COONa B. C15H31COONa C. C12H25OSO3Na D. ‡KvbwUB bq| mwVK DËi: C. C12H25OSO3Na e¨vL¨v: Teepol wn‡m‡e `ywU wWUvi‡R‡›Ui bvg- ‡mvwWqvg jivBj mvj‡dU (C12H25OSO3Na) ‡mvwWqvg AvB‡mv‡Wv‡WKvBj mvj‡dU [C10H21-CH(CH3)-O-SO3Na] 04. m¨v‡cvwbwd‡Kkb ej‡Z wK †evSvq? [JnU.2008-09] A. Pwe© RvZxq c`v©‡_i A¤ø we‡kølY B. Pwe© RvZxq c`v‡_©i ÿvixq we‡kølY C. Pwe© RvZxq c`v‡_©i Av`ª© we‡kølY D. Dc‡ii wZbwUB mwVK DËi: B. Pwe© RvZxq c`v‡_©i ÿvixq we‡kølY JU 01. OH CH3 C1 H3C ms‡KZwU Kx wb‡`©k K‡i? [JU-D1.2017-18, e.‡ev. 2015] A. c¨vivwmUvgj B. Gmwcwib C. ‡K¬v‡ivwdDivbj D. ‡K¬v‡ivRvBwjbj mwVK DËi: D. ‡K¬v‡ivRvBwjbj e¨vL¨v: †K¬v‡ivRvBwjbj Gi evwYwR¨K bvg †WUj Ges ivmvqwbK bvg: 4-‡K¬v‡iv3,5- WvBwg_vBj †dbj| 02. †WU‡j kZKiv KZfvM cvBb †Zj _v‡K? [JU-D3.2017-18] A. 4.8 B. 75 C. 10 D. 15 mwVK DËi: C. 10 e¨vL¨v: †WU‡j †K¬v‡ivRvBwjb 4.8%, AvB‡mv‡cÖvcvBj A¨vj‡Kvnj 13.1%, cvBb †Zj 10% Ges mvevb, cvwb I myMÜ 72% _v‡K| RU 01. c¨vivwmUvgj •Zwi‡Z e¨eüZ nq- [RU-Ka,Set-3: 2018-19] A. B_vbj B. †cÖvcvbj C. †ebwRb D. †dbj e¨vL¨v: c¨vivwmUvgj Drcv`‡bi Rb¨ cÖ_‡g †dbj‡K HNO3 I H2SO4 Gi wgkÖY Øviv bvB‡Uªkb Kiv nq| G‡Z Drcbœ 4-bvB‡Uªv‡dbj‡K NaBH4 Øviv weRvwiZ Ki‡j 4-A¨vwg‡bv‡dbj Drcbœ nq| A¨vwmwUK A¨vbnvBWªvBW Øviv 4-A¨vwg‡bv‡dbj‡K A¨vwmUvB‡jkb Ki‡j N-A¨vwmUvBj P A¨vwg‡bv‡dbj Z_v c¨vivwmUvgj Drcbœ nq- wewµqv Dc‡i jÿ Ki| 02. †KvbwU mvd© cvDWvi bv‡g cwiwPZ? [RU.2012-2013, 2006-07, CU. 2006-07] A. †mvwWqvg A¨vjKvBj †ebwRb mvj‡dv‡bU B. †mvwWqvg A¨vjKvBj mvj‡dU C. B_vb¨vgvBW D. †mvwWqvg †ebwRb mvj‡dv‡bU mwVK DËi: A. †mvwWqvg A¨vjKvBj †ebwRb mvj‡dv‡bU 03. mvevb wk‡í DcRvZ wn‡m‡e cvIqv hvq- [RU.2009-2010; CU-2009-10] A. wWUvi‡R›U B. wMømvwib C. Pwe© D. B_vbj mwVK DËi: B. wMømvwib 04. D.D.T wK? [RU.2017-18, 2007-2008] A. A‡_©v WvB‡K¬v‡iv WvBwdbvBj UªvB‡K¬v‡iv B‡_b B. A‡_©v WvB‡K¬v‡iv c¨viv WvB‡d¬v‡iv UªvB‡K¬v‡iv B‡_b C. A‡_©v WvB‡K¬v‡iv A‡_©v WvBwdbvj UªvB‡K¬v‡iv B‡_b D. c¨viv c¨viv WvB‡K¬v‡iv WvBwdbvBj UªvB‡K¬v‡iv B‡_b| mwVK DËi: D. c¨viv c¨viv WvB‡K¬v‡iv WvBwdbvBj UªvB‡K¬v‡iv B‡_b| 05. wcKwiK GwmW nj- [RU.2007-2008] A.2,4,6 - UªvBbvB‡Uªv UjyBb B.2,4,6 - UªvBbvB‡Uªv ‡dbj C.2,4,6 - UªvBbvB‡Uªv ‡ebwRb D.2,4,6 - UªvB‡eªv‡gv †ebwRb mwVK DËi: B. 2, 4, 6 - UªvBbvB‡Uªv ‡dbj CU 01. †Kvb †h․MwU ÿvixq KMnO4 Gi mv‡_ wewµqv K‡i bv? [CU-A.2019-20] A. CH2 = CH2 B. CH CH C. CH3CH=CH2 D. C6H6 mwVK DËi: D. C6H6 e¨vL¨v: A¨v‡iv‡gwUK †h․‡Mi Am¤ú„³Zv GKwU we‡kl ai‡bi Am¤ú„³Zv| †ebwRb GKwU Am¤ú„³ †h․M, hv ÿvixq KMnO4 Gi mv‡_ wewµqv K‡i bv| H2C = CH2 KMnO4 –––––– KOH H2C –– CH2 OH OH wKš‧ + KMnO4/KOH –––– †Kv‡bv wewµqv nq bv| 02. ‡cvovÿ‡Zi R¡vjv wbevi‡Y e¨eüZ ÔevY©jÕ n‡jv....| [CU-Ka.2016-17] A. wcKwiK GwmW B. ‡K¬v‡ivdg© C. †gb&_j D. WvB‡K¬v‡ivB‡_b E. WvBB_vBj B_vi mwVK DËi: A. wcKwiK GwmW e¨vL¨v: e¨envi : (i) we‡ùviK †h․M cÖ¯‧wZ‡Z (ii) ckgx I †ikgx e‡¯¿i iÄb wk‡í (iii) †cvov ÿ‡Zi Rvjv I cPb wbevi‡Y e¨eüZ nq 03. wb‡Pi †KvbwU‡Z bvB‡UªvwMømvwib e¨eüZ nq bv? [CU-F1.2016-17] A. we‡õviK ‣Zixi KvuPvgvj wnmv‡e B. e¨_v I R¡i Kgv‡Z C. ü`‡iv‡Mi wPwKrmvq D. †cÖv‡÷U K¨vÝvi wPwKrmvq E. i³bvjx‡Z eøK Av‡Q Ggb †ivMxi wPwKrmvq mwVK DËi: E. i³bvjx‡Z eøK Av‡Q Ggb †ivMxi wPwKrmvq e¨vL¨v: bvB‡UªvwMømvwi‡bi e¨envi: i. we‡õviK ‣Zixi KvuPvgvj wnmv‡e ii. e¨_v I R¡i Kgv‡Z iii. ü`‡iv‡Mi wPwKrmvq iv. †cÖv‡÷U K¨vÝvi wPwKrmvq

CHEMISTRY PLUS •Re imvqb 631 ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES 04. Pwe© †_‡K mvevb •Zwii †ÿ‡Î †Kvb ai‡bi wewµqv msMwVZ nq? [CU-1. 2016-17] A. Av`ª© we‡kølY B. cwjgviKiY C. MvuRb D. cÖwZ¯
vcb E. we‡qvRb mwVK DËi: A. Av`ª© we‡kølY e¨vL¨v: Pwe© †_‡K mvevb •Zwii †ÿ‡Î Av`ª© we‡kølY ÷vP© †_‡K A¨vj‡Kvnj •Zwii †ÿ‡Î MvuRb 05. mvev‡bi ivmvqwbK bvg- [CU-F. 2015-16, RU. 2007-08] A. UªvB A¨vmvBj wMømvij B. wMømvwib C. d¨vwU Gwm‡Wi ‡mvwWqvg jeY D. Kw÷K ‡mvWv E. Kw÷K cUvk mwVK DËi: C. d¨vwU Gwm‡Wi ‡mvwWqvg jeY IU 01. ‡WUj •Zwii cÖavb ivmvqwbK Dcv`vb- [IU-A.2017-18; BUET-2011-12, KU. 2012-13] A. m¨vwjmvBwjK GwmW B. 4-‡K¬v‡iv- 3,5-WvBwg_vBj †dbj C. A¨vwb‡mvj D. 2,4,6-UªvB‡eªv‡gv A¨vwbwjb mwVK DËi: B. 4-‡K¬v‡iv- 3,5-WvBwg_vBj †dbj 02. wMømvwib‡K P2O5 mn‡hv‡M DËß Ki‡j wewkÖ MÜhy³ GKwU M¨vm †ei nq Ges GB cixÿvi gva¨‡g wMømvwib kbv³ Kiv nq| cixÿvwUi bvg- [IU-D. 2016-17] A. ‡eqvi cixÿv B. A¨v‡µvwjb cixÿv C. WvI cixÿv D. U‡jb weKviK cixÿv mwVK DËi: B. A¨v‡µvwjb cixÿv e¨vL¨v: wewµqvi bvg Z_¨/KvR †eqvi cixÿv Am¤ú„³Zv cÖgvY Kiv nq A¨v‡µvwjb cixÿv wMømvwib kbv³ Kiv nq WvI cÖYvjx †dbj •Zwi Kiv nq U‡jb weKviK cixÿv A¨vjwWnvBW I wK‡Uv‡bi cv_©K¨ 03. †Zj I Pwe©i †ÿ‡Î mwVK Dw³- [IU. 2011-2012] A. †Z‡j Am¤ú„³ d¨vwU GwmW Ges Pwe©‡Z m¤ú„³ d¨vwU GwmW _v‡K B. †Z‡j †Kv‡j‡ói‡ji cwigvY Pwe©i †P‡q Kg _v‡K C. †Zj I Pwe©i ÿvixq Av`ª© we‡køl‡Y mvevb •Zix nq D. Dc‡ii me¸‡jv mwVK DËi: D. Dc‡ii me¸‡jv STEP 02 ANALYSIS OF SCIENCE & TECHNOLOGY QUESTION JUST 01. “Aspirin” n‡”Q- [JUST-B: 2019-20] A. wg_vqwbK A¨vbnvBWªvBW I m¨vwjmvBwjK Gwm‡Wi G÷vi B. B_vbwqK A¨vbnvBWªvBW I m¨vwjmvBwjK Gwm‡Wi cwjgvi C. †cÖvcvbwqK A¨vbnvBWªvBW I g¨v‡jwqK Gwm‡Wi G÷vi D. B_vbwqK A¨vbnvBWªvBW I m¨vwjmvBwjK Gwm‡Wi G÷vi mwVK DËi: B. B_vbwqK A¨vbnvBWªvBW I m¨vwjmvBwjK Gwm‡Wi cwjgvi 02. mvevb •Zwii mgq wK ai‡bi wewµqv m¤úbœ nq? [JUST-A,Set-Kha 18-19] A.Av`ª© we‡kølY B. MuvRb C. cwjgviKiY D. cÖwZ¯
vcb mwVK DËi: A.Av`ª© we‡kølY e¨vL¨v: mvevb •Zixi cÖwµqv‡K m¨v‡cvwbwd‡Kkb ev mvevbvqb e‡j| •Zj ev Pwe©i ÿvixq Av`ª© we‡køl‡Y mvevb •Zix nq| mvevb wk‡íi cÖavb DcRvZ n‡”Q wMømvwib| mvev‡bi mvaviY bvg w÷qv‡iU (†mvwWqvg w÷qv‡iU- C17 H35COONa) MBSTU 01. wMømvwi‡bi Kvh©Kix g~jK nj- [MBSTU-B. 2019-20] A. OH B. CHO C. CO D. COOH mwVK DËi: A. OH 02. mvevb •Zix‡Z †KvbwU e¨eüZ nq? [MBSTU-C2.2017-18] A. Mg(OH)2 B. KOH C. Ca(OH)2 D. Fe(OH)2 mwVK DËi: B. KOH e¨vL¨v: D”PZi d¨vwU Gwm‡Wi †mvwWqvg I cUvwmqvg jeY‡K mvevb e‡j| 03. wb‡Pi †KvbwU e¨v_v wbeviK c¨vivwmUvgj Gi MvVwbK ms‡KZ? [MBSTU-C.2016-17; RU.2009-10; RU.2009-2010] A. B. C. D. mwVK DËi: D. BSMRSTU 01. c¨vivwmUvgj •Zwi‡Z KvuPvgvj wn‡m‡e cÖ‡qvRbÑ [BSMSTU-H.2016-17, JU-D. 2011-12] A. bvB‡Uªv‡ebwRb B. †ebwRb C. †dbj D. †K¬v‡ivdig mwVK DËi: C. †dbj e¨vL¨v: A¨vmwcwib HOOC – C6H5 – OOC – CH3 DU Technology 01. mvaviY ZvcgvÎvq †Zj Zij wKš‧ Pwe© KwVb nIqvi KviY Pwe©‡Z _v‡K? [DU-Projukti. 2019-20] A. kw³kvjx C–C eÜb B. Kg Am¤ú„³Zv C. cwjgvi wkKj D. kw³kvjx C–O eÜb mwVK DËi: B. Kg Am¤ú„³Zv e¨vL¨v: m¤ú„³ Kve©w·wjK Gwm‡Wi wMømvwib G÷vi nj KwVb Pwe© Ges Am¤ú„³ Kve©w·wjK Gwm‡Wi wMømvwib G÷vi nj •Zj| •Z‡ji Mjbv¼ 20C Gi Kg nq, wKš‧ Pwe©i Mjbv¼ 20C Gi AwaK nq| •Zj Dw™¢‡`‡n wKš‧ Pwe© cÖvwY‡`‡n Drcbœ nq| PUST 01. wMømvwib †_‡K A¨v‡µvwjb †c‡Z †KvbwU wbiæ`K wn‡m‡e e¨eüZ nq? [PUST. 2019-20] A. H2SO4 B. Abv`ª© CaCl2 C. KHSO4 D. K2SO4 mwVK DËi: C. KHSO4 e¨vL¨v: wbiæ`K KHSO4 Gi mnvqZvq wMømvwib †_‡K 2 AYy AcmvwiZ n‡q SvSv‡jv MÜhy³ A¨v‡µvwjb •Zwi nq| CH2 | OH – CH | OH – CH2 | OH KHSO4 ––––––– H2C = OH–CHO+2H2O STEP 03 ANALYSIS OF ENGINEERING & BUTex QUESTION BUET 01. mvevbvqb wewµqv n‡jvt [BUET. 2006-2007; MAT. 2000-01] A. wMømvivB‡Wi GKwU A¤øxq nvB‡WªvjvBwmm wewµqv B. GKwU cÖkgb wewµqv C. wMømvivB‡Wi GKwU ÿvixq nvB‡WªvjvBwmm wewµqv D. Dc‡ii †KvbwUB bq mwVK DËi: C. wMømvivB‡Wi GKwU ÿvixq nvB‡WªvjvBwmm wewµqv OH HN C O CH3 CH3 CI H3C OH NO2 NO2 O2N OH HN C O CH2NO2

632 •Re imvqb CHEMISTRY PLUS ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES C=O+NaOH H COONa+CH3OH H H Gwm‡Wi jeY (RviY) A¨vj‡Kvnj (weRviY) e¨vL¨v: mvevb m¤úwK©Z we‡kl ZË¡: mvevb •Zwii cÖwµqv‡K mvevbvqb e‡j| ‡Zj ev Pwe©i Av`©ªwe‡køl‡Y mvevb •Zwi nq| mvevb •Zwi‡Z wMømvwib DcRvZ wnmv‡e cvIqv hvq| mvev‡bi mvaviY bvg w÷qv‡iU| STEP 04 ANALYSIS OF MEDICAL & HSC QUESTION MAT 01. wb‡Pi †KvbwU Ô†WUjÕ Gi Dcv`vb bq? [MAT- 2018-19] A. AvB‡mv‡cÖvcvBj A¨vj‡Kvnj B. K¨v÷i I‡qj C. wcKwiK GwmW D. mvevb mwVK DËi: C. wcKwiK GwmW e¨vL¨v: †WU‡ji Dcv`vb- (i) †K¬v‡ivRvBwjbj(ii) AvB‡mv‡cÖvcvBj A¨vj‡Kvnj (iii) cvBb‡Zj ev UviwcwbIj (v) evUvi I‡qj †mvc 02. wWbvgvBU •Zixi †ÿ‡Î wb‡Pi †Kvb ivmvqwbK e¯‧wU e¨eüZ nq? [MAT- 2017-18; JU-A-Set-A. 2019-20; Kz.‡ev.; e.‡ev. 2016] A. C3H5N3O9 B. C7H7NO2 C. C6H5NO2 D. C6H5NO3 mwVK DËi: A. C3H5N3O9 e¨vL¨v: bvB‡UªvwMømvwib Gi ï× ivmvqwbK bvg n‡jv wMømvivBj UªvBbvB‡Uªv| GwU GKwU kw³kvjx we‡ùviK `ªe¨, eY©nxb •Zj RvZxq c`©v_ Ges we‡ùviK wWbvgvBU •Zwi‡Z e¨eüZ nq| 03. wb‡Pi †KvbwU A¨v‡µvwjb cixÿv Øviv kbv³ Kiv hvq? [DAT. 2019-20] A. B_vbj B. B_vbwqK GwmW C. wMømvij D. Møy‡KvR mwVK DËi: C. wMømvij e¨vL¨v: wMømvij ev wMømvwib kbv³KiY: wbiæ`K cUvwkqvg nvB‡Wªv‡Rb mvj‡dU Gi Dcw¯
wZ‡Z A_ev D”P ZvcgvÎvq wMømvwib‡K DËß Ki‡j wMømvwib AYy †_‡K `yB AYy cvwb AcmvwiZ n‡q `yM©Ühy³ SuvSv‡jv A¨v‡µvwjb ev®ú Drcbœ nq| G‡K A¨v‡µvwjb cixÿv e‡j| CH2(OH)CH(OH)CH2(OH) CH2 = CHCHO + 2H2O 04. wb‡Pi †Kvb ivmvqwbKwU c¨vivwmUvgj bv‡g evRv‡i cvIqv hvq? [DAT- 18-19] A.A¨vwmUvgvBW B.A¨vwmUvjnvB‡Wv‡K¬vivBW C. A¨vwmUvjwWnvBW D.A¨vwmUvA¨vwg‡bv‡db mwVK DËi: D.A¨vwmUvA¨vwg‡bv‡db e¨vL¨v: 4- nvBWªw· A¨vwmUvwbjvBW ev N- B_vb¨vgvBW‡K c¨vivwmUvgj e‡j| (c¨vivwmUvgj ev A¨vwmUvA¨vwg‡bv‡db) PART 13 bvgxq wewµqv A¨vjWj Nbxfeb wewµqvt A¨vjwWnvB‡Wi ÔA¨vjWÕ I A¨vj‡Kvn‡ji ÔAjÕ wg‡j A¨vjWj kãwU MwVZ (ald + ol = aldol), A_©vr †h wewµqvq A¨vjWj MwVZ nq Zv‡K A¨vjWj Nbxfeb wewµqv e‡j| †hgb: R–CH2–CHO + H3C–CHOR–CH2–CH(OH)–CH2–CHO D`vniYt †hgb: jNy ÿv‡ii Dcw¯
wZ‡Z `yB AYy A¨vwmUvjwWnvBW (-nvB‡Wªv‡Rbwewkó Awfbœ A¨vjwWnvBW wewµqv K‡i -nvB‡Wªvw· weDUvi¨vjwWnvBW Drcbœ K‡i| HCH2C = O + HCHC = O H H H A¨vwmUvjwWnvBW Dil NaOH HCH2CCH2C = O OH H H -nvB‡Wªvw· weDUvi¨vjwWnvBW (A¨vjWj) `ywU GKB ev wfbœ A¨vjwWnvBW ev wK‡Uv‡bi ci¯ú‡ii g‡a¨ A_ev GKwU A¨vjwWnvB‡Wi m‡½ GKwU wK‡Uv‡bi g‡a¨I A¨vjWj Nbxfeb wewµqv NUv‡Z cv‡i| hyM¥ A¨vjWj Nbxfeb wewµqv: jNyÿv‡ii Dcw¯
wZ‡Z (-nvB‡Wªv‡Rbwewkó `yB AYy wfbœ A¨vjwWnvBW ev wfbœ wK‡Uvb ev -nvB‡Wªv‡Rb wewkó GK AYy A¨vjwWnvBW I GK AYy wK‡Uvb wewµqv K‡i| GLv‡b, `ywU wfbœ Kve©wbj g~jK nIqvi Kvi‡Y wewµqvwUi bvg hyM¥ A¨vjWj Nbxfeb wewµqv| CH3CH + CH3CCH3 O A¨vwmUvjwWnvBW Dil NaOH CH3CCH2CCH3 OH H 4-nvB‡Wªvw·-2-†c›Uv‡bvb A¨vwm‡Uvb O O K¨vwbRv‡iv wewµqvt Kve©b cigvYy‡Z - nvB‡Wªv‡Rbwenxb A¨vjwWnvBW Mvp `ªe‡Y hyMcrfv‡e RvwiZ I weRvwiZ n‡q h_vµ‡g GwmW I A¨vj‡Kvn‡j iƒcvšÍwiZ nq| G wewµqv‡K K¨vwbRv‡iv wewµqv e‡j| †hgb, wg_vb¨vj †_‡K wg_v‡bvwqK GwmW I wg_vbj Drcbœ nq| hyM¥ K¨vwbRv‡iv wewµqvt Mvp ÿvi (cÖvq 50%) †hgb: NaOH ev KOH Dcw¯
wZ‡Z -nvB‡Wªv‡Rb †bB Giƒc `ywU wfbœ A¨vjwWnvBW ci¯úi wewµqv K‡i GK AYy A¨vj‡Kvnj Ges GK AYy GwmW Drcbœ K‡i| G wewµqvq AskMÖnYKvix A¨vjwWnvBW؇qi g‡a¨ †hwUi Kve©wbj MÖæc †ewk mwµq †mwU RvwiZ n‡q Gwm‡W (†mvwWqvg jeY ev cUvwkqvg jeY) Ges Ab¨wU weRvwiZ n‡q A¨vj‡Kvn‡j cwiYZ nq|G wewµqvqI GKB mv‡_ A¨vjwWnvB‡Wi RviY I weRviY msNwUZ nq| C6H5CHO + HCHO †ebRvjwWnvBW 50% NaOH, C6H5CH2OH + HCOONa wg_vb¨vj wg_vb¨vj †mvwWqvg di‡gU CH2-O-NO2 CH-O-NO2 CH2-O-NO2 NH C CH3 O OH

CHEMISTRY PLUS •Re imvqb 633 ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES CH3 +2[O] CHO 2 2 2 CS CrO Cl +2H2O (g„`y RviK) X+2Na+X CH3 +2NaX CH3 CH3 CH3 CH OH Cu/Pd 350 0C CH3 CH3 C=O+H 2 N2Cl+H OH NaOH N=N OH+HCl BUvW© wewµqvt BUvW© wewµqvq g„`y RviK ‡µvwgj †K¬vivBW (CrO2Cl2) ev g¨v½vwbR A·vBW (MnO2) e¨eüZ nq| G wewµqvq †ebRvjwWnvBW Drcbœ nq| DBwjqvgmb wewµqvt G wewµqvq B_vi cÖ¯‧Z Kiv nq| †mvwWqvg A¨vjK·vBW+A¨vjKvBj n¨vjvBW B_vi mvaviY wewµqvt R-ONa+RIX R-O-R1+NaX D`vniYt wg‡_vw· B‡_b cÖ¯‧wZ- CH3ONa + C2H5ICH3-O-C2H5 + NaI DU©R wewµqvt D”PZi A¨vj‡Kb Drcv`‡bi wewµqv‡K D™¢ve‡Ki bvgvbymv‡i DU©R wewµqv e‡j| 2RX+2Na=R-R+2NaX 2CH31+2Na = CH3 - CH3 +2NaX DU©R-wdwUM wewµqvt ï®‥ B_v‡i A¨vivBj I wg_vBj n¨vjvB‡Wi `ªeY‡K †mvwWqvg avZz mn wid¬v· Ki‡j UjyBb Drcbœ nq| mgxKi‡Ywg_vBj n¨vjvBW wn‡m‡e mvaviYZ wg_vBj Av‡qvWvBW e¨envi Kiv nq| A¨vjKvBj †ebwRb •Zwii G c×wZ‡K DU©R-wdwUM wewµqv ejv nq| †R‡b ivLv fv‡jv: DU©R wewµqv I cwjgviKiY wewµqvi cv_©K¨- DU©R wewµqv cwjgvKiY CC eÜb _v‡K CC eÜb _v‡K D”PZi A¨vj‡Kb cvIqv hvq GKK AYy n‡Z eû AYy m„wó nq Djd-wKkbvi weRviY (Wolff-kishner): Kve©wbj †h․‡Mi nvBWªv‡Rvb‡K †mvwWqvg B‡_v·vBW mn‡hv‡M 180C ZvcgvÎvq DËß Ki‡j bvB‡Uªv‡Rb wbM©Z n‡q hvq I Abyiƒc nvB‡WªvKve©b MwVZ nq| GwU Djd wKkbvi weRviY bv‡g L¨vZ| CH3CH=O+NH2–NH2+(CH3)3CONaCH3–CH3 IqvKv&i wewµqv : •ewkó¨ : 2 A¨vj‡Kvnj n‡Z wK‡Uvb •Zwi nq| Kvcwjs ev hyMjvqb wewµqvt wng kxZj ÿv‡i `ªexf~Z †dbj A¨vivBj Wvqv‡Rvwbqvg je‡Yi mv‡_ wewµqvq p- nvBWªw· A¨v‡Rv‡ebwRb bvgK A¨v‡RviÄK Drcbœ K‡i| G wewµqvq `ywU ‡ebwRb Pµ Wvqv‡Rvg~jK (-N = N-) Øviv hyMjvwqZ nq| ZvB G wewµqv hyMjvqb ev Kvcwjs wewµqv bv‡g cwiwPZ| Kvwe©j A¨vwgb wewµqvt A¨vj‡Kvnjxq Kw÷K cUvm ev Kw÷K †mvWv I A¨vwbwj‡bi m‡½ †K¬v‡ivdig‡K 60-70°C DòZvq DËß Ki‡j wdbvBj AvB‡mvmvqvbvBW Z_v Kvwe©j A¨vwgb Drcbœ nq| NH2 +CHCl 3 NC +KCl+H 2O KOH Kvwe©j A¨vwg‡bi DrKU MÜ Øviv A¨vwbwjb ev †K¬v‡ivdig kbv³ Kiv hvq| G cixÿvwU‡K Kvwe©j A¨vwgb cixÿv e‡j | ‡Kve ms‡kølYt 2CH3-COONa ⇌ 2CH3-COO- + 2Na+ Anode: 2Na+ +2e 2Na, 2Na +2H2O 2NaOH + H2 Cathode: 2CH3-COO- CH3-CH3 + 2CO2 + 2e ‡Kve wewµqvt 4-7 evqyPvc I 120°C ZvcgvÎvq †mvwWqvg wd‡b‡Ui mv‡_ CO2 Gi wewµqvq †mvwWqvg m¨vwjmvB‡jU MwVZ nq| D™¢~Z m¨vwjmvB‡jU‡K HCl Øviv Av`ª©-we‡kølY Ki‡j A‡_©v-nvBWªw·†eb‡RvwqK GwmW Drcbœ nq| D™¢ve‡Ki bvgvbymv‡i G wewµqv‡K †Kve&-wewµqv e‡j| NaCH OH +CO2 ONa ONa COONa HCl OH COOH +NaCl 0-nvBWªw·‡ebRwqK GwmW (cÖavb Drcv`b) ††mvwWqvg wd‡bU mvwWqvg †d‡bU ‡mvwWqvg m¨vwjmvB‡jU m¨vwimvB‡jU m¨vwjmvBwjK GwmW (O-nvBWªw·‡ebRwqK GwmW) NaOH †R‡b ivLv fv‡jv: †Kve ms‡kølY I †Kve wewµqvi cv_©K¨- †Kve ms‡kølY †Kve wewµqv cÖavb Drcv` A¨vj‡Kb cÖavb Drcv` m¨vwjmvBwjK GwmW hv A¨vmwcwib •Zwi‡Z e¨eüZ nq Zwor we‡kølY cÖwµqvq wewµqv m¤úbœ nq B‡jK‡UªvwdwjK cÖwZ¯
vcb wewµqvi gva¨‡g m¤úbœ nq wK¬‡gbmb weRviYt G wewµqvq Zxeª weRviK ZnCl2 I Mvp HCl e¨eüZ nq| hv Kve©wbj †h․M‡K (>CO) mivmwi wgw_wjb (-CH2-) g~jK cwiYZ K‡i| mvaviY wewµqvt Zn–Hg+2HCIZnC12+2[H] g~j wewµqv >C = O + 2[H] – CH2 – R – CO – R + 4[H] R – CH2 – R + H2O D`vniY- CH3 – CO – CH3 + 4[H] CH3 – CH2 – CH3 + H2O

634 •Re imvqb CHEMISTRY PLUS ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES Cl 300 0 -400 0C ONa +2NaOH HCl 150-200 evqyPvc ‡K¬v‡iv‡ebwRb ‡mvwWqvg wd‡bU OH ‡dbj OH + CHCl3 + KOH 6070C OH + KCl+H2O CHO + N2Cl Br + CuBr HBr + N2 + CuCl HCl K¨v‡KvWvBj A·vBW cixÿvt 4CH3 – COONa + As2O3 (CH3)2 – As – (CH3)2 K) `yM©›ahy³ K¨v‡KvWvBj A·vBW •Zix nq| L)B_v‡bvwqK GwmW kbv³Kvix wewµqv †K¬B‡Rb Kb‡Wb‡mkb wewµqvt A¨v‡iv‡gwUK A¨vjwWnvB‡W nvB‡Wªv‡Rb bv _vKvq Giv A¨vwj‡dwUK A¨vjwWnvB‡Wi b¨vq A¨vjWj Kb‡Wb‡mkb (aldol condensastion) wewµqv Ki‡Z cv‡i bv| Z‡e Giv nvB‡Wªv‡Rb wewkó A¨vwj‡dwUK A¨vjwWnvB‡Wi mv‡_ jNy ÿv‡ii Dcw¯
&wZ‡Z Kb‡Wb‡mkb wewµqv K‡i| Giƒc Kb‡Wb‡mkb wewµqv‡K m¼i A¨vjWj Kb‡Wb‡mkb ejv nq| D`vniY t C6H5–CHO+CH3–CHOOH– ––C6H5–CH2–CH2–CHOH2O ––C6H5–CH=CH–CHO m¨vÛ‡gqvi wewµqvt Wvqv‡Rvwbqvg je‡Yi Rjxq `ªeY‡K wKDcÖvm jeY I Zvi Abyiƒc nvBWªvwmWmn 100OC DòZvq DËß Ki‡j Wvqv‡Rv g~jK wKDcÖvm je‡Yi mswkøó A¤øxqg~jK Øviv cÖwZ¯
vwcZ n‡q †ebwRb RvZK MwVZ nq| wKDcÖvm Avqb Øviv cÖfvweZ G wewµqv‡K m¨vÛ‡gqvi wewµqv e‡j| M¨vUvig¨vb wewµqvt ‡ebwRb Wvqv‡Rvwbqvg jeY‡K Kcvi P~Y© Ges n¨v‡jv‡Rb GwmWmn DËß Ki‡jI Wvqv‡Rvg~jK n¨v‡jv‡Rb Øviv cÖwZ¯
vwcZ nq| G wewµqv‡K M¨vUvig¨vb wewµqv e‡j| N2Cl Cu ––––– HCl Cl + N2 WvD c×wZt ‡K¬v‡iv‡ebwRb‡K 150-200 atm evqy Pv‡c Ges 300-400OC ZvcgvÎvq ÿvixq Av`ª©-we‡kølY Ki‡j cÖ_‡g †mvwWqvg wd‡bU Drcbœ nq hvi mv‡_ Gwm‡Wi wewµqv NUv‡j †dbj Drcbœ nq| A¨vivBj †K¬vivB‡Wi Av`ª©-we‡køl‡Yi gva¨‡g †dbj ‣Zwii c×wZ‡K WvD c×wZ e‡j| . wd«‡Wj-µvd&Um A¨vjKvB‡jkbt ‡ebwRb‡K wg_vBj †K¬vivBW/†eªvgvBW Gi mv‡_ Ab©v`ª AlCl3 Gi Dcw¯
wZ‡Z DËß Ki‡j cÖwZ¯
vcb wewµqvi Øviv UjyBb I HCl/HBr M¨vm Drcbœ nq| A¨vjKvBj †ebwRb Drcv`‡bi G wewµqv‡K D™¢ve‡Ki bvgvbymv‡i wd«‡Wj-µ¨vdU& wewµqv e‡j| + X – CH3 Abv`ª AlCl3 –––––––––– + HX cviwKb wewµqvt `ywU nvB‡Wªv‡Rb hy³ A¨vwj‡dwUK Gwm‡Wi †mvwWqvg je‡Yi Dcw¯
wZ‡Z H Gwm‡Wi A¨vbnvBWªvB‡Wi mv‡_ A¨v‡iv‡gwUK A¨vjwWnvBW‡K DËß Ki‡j , Am¤ú„³ GwmW Drcbœ nq| †hgb- †mvwWqvg A¨vwm‡U‡Ui Dcw¯ÍwZ‡Z A¨vwmwUK A¨vbnvBWªvB‡Wi mv‡_ †ebRvjwWnvBW‡K DËß Ki‡j wmbvwgK GwmW Drcbœ nq| CH3COONa CHO CH=CH COOH +(CH3CO)2O +CH3COOH wmbvwgK wmivwgKGwmW GwmW ivBgvi UvBg¨vb wewµqvt ‡K¬v‡ivdg‡K †dbj I Kw÷K †mvWv ev Kw÷K cUvm `ªeYmn 60-70°C DòZvq DËß Ki‡j m¨vwjmvjwWnvBW Drcbœ nq| D™¢ve‡Ki bvgvbymv‡i G wewµqv‡K ivBgvi-UvBg¨vb wewµqv e‡j| †iv‡Rb gvÛ weRviYt ‡ewiqvg mvj‡d‡Ui Dc‡i Aatwÿß c¨vjvwWqvg cÖfve‡Ki Dcw¯
wZ‡Z nvB‡Wªv‡Rb Øviv A¨vwmW †K¬vivBW‡K weRvwiZ K‡i A¨vjwWnvBW cÖ¯‧Z Kivi cÖYvjx †iv‡RbgvÛ weRviY bv‡g cwiwPZ| CH3COCl + H2 PdBaSO4 CH3 – CHO + HCl. ‡jWv‡ii g¨vbv‡m wewµqvt jNy ÿvi ev Gwm‡Wi Dcw¯
wZ‡Z †dbj digvjwWnvB‡Wi wewµqv K‡i A‡_©v nvB‡Wªvw·‡ebRvBj A¨vj‡Kvnj I c¨viv nvB‡Wªvw·‡ebRvBj A¨vj‡Kvnj Drcbœ K‡i| c‡i nvB‡Wªvw·‡ebRvBj A¨vj‡Kvn‡ji Aci AYywU †db‡ji mv‡_ wewµqv K‡i| G‡Z GK AYy cvwb AcmvwiZ n‡q Ggb †h․M MwVZ nq Zv‡Z `ywU Pµ Ñ CH2 g~jK Øviv hy³ _v‡K Ges G cÖwµqv µgvMZ Pj‡Z _v‡K, d‡j e¨v‡KjvBU bvgK cwjgvi MwVZ nq| nd&g¨vb ÿz`ªvskKiY wewµqv (ïaygvÎ cÖvBgvix A¨vwg‡bi Rb¨)t GwU Kve©b msL¨v n«vm Kivi GKwU cÖwµqv| G c×wZ‡Z A¨vgvBW‡K †eªvwgb I KwóK †mvWv/KwóK cUvm `ªeY Øviv DËß Ki‡j cÖvBgvix A¨vwgb Drcbœ nq| Drcvw`Z A¨vwg‡b g~j A¨vgvBW A‡cÿv GKwU Kve©b Kg _v‡K e‡j G c×wZ‡K Avwe®‥vi‡Ki bvgvbymv‡i Òndg¨vb ÿz`ªvskKiY wewµqvÓ e‡j| R – CO– NH2 + 4NaOH + Br2 R – NH2 1° A¨vwgb + 2NaBr + Na2CO3 + 2H2O D`vniY ¯^iƒct A¨vwmUvgvBW †_‡K wg_vBj A¨vwgb Drcbœ nq| H3C–CO–NH2+Br2+4NaOHH3C–NH2 + 2NaBr +Na2CO3+2H2O CH3 UjyBb

CHEMISTRY PLUS •Re imvqb 635 ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES †nj-‡fvjnvU©-‡Rwjb¯‥x wewµqvt ‡h mKj Kve©w·wjK Gwm‡Wi α Ae¯
v‡b nvB‡Wªv‡Rb i‡q‡Q †m¸‡jvi m‡½ DËß Ae¯
vq, m~h©v‡jv‡K A_ev AwZ †e¸Yx iwk¥i Dcw¯
wZ‡Z †m¸‡jvi ms‡½ Cl2/Br2 Gi ch©vqµ‡g wewµqv N‡U| d‡j, Gwm‡Wi α-Ae¯
v‡b nvB‡Wªv‡Rb cigvYy Cl ev Br Øviv cÖwZ¯
vwcZ n‡q n¨v‡jv‡R‡bv GwmW Drcbœ K‡i| wewµqv‡K wZbRb imvqbwe‡`i bvgvbymv‡i †nj-‡fvjnvU©-‡Rwjb¯‥x (Hell – Volhart – Zelinsky) wewµqv e‡j| †hgb: †jvwnZ dmdiv‡mi Dcw¯
wZ‡Z dzUšÍ CH3COOH Gi †fZi w`‡q Cl2 M¨vm Pvjbv Ki‡j h_vµ‡g 2-†K¬v‡ivB_vbwqK GwmW, 2,2-WvB‡K¬v‡iv B_vbwqK GwmW Ges 2,2,2- UªvB‡K¬v‡iv B_vbwqK GwmW Drcbœ K‡i| CH3COOH + Cl2 B_vbwqK GwmW –––– P(jvj) ClCH2COOH 2-†K¬v‡iv B_vbwqK GwmW + Cl2 –––– P(jvj) Cl2CHCOOH 22-WvB‡K¬v‡ivB_vbwqK GwmW + Cl2 –––– P(jvj) Cl3CCOOH 222-WvB‡K¬v‡ivB_vbwqK GwmW + HCl †jmvBb cixÿvt †mvwWqvg avZzi Dcw¯
wZ‡Z wewfbœ weKviK †hvM K‡i h_vµ‡g N, S, X Ges N I S Gi GK‡Î Dcw¯
wZ kbv³ Kiv nq| Avwe®‥vi‡Ki bvg Abymv‡i G cixÿvwU‡K †jmvBb cixÿv e‡j| G cixÿvq †mvwWqvg avZz e¨envi Kivi KviY n‡”Q (K) GwU AZ¨šÍ mwµq Ges (L) `v‡g m¯Ív| ZvQvov †mvwWqvg avZzi jeY cvwb‡Z mn‡R `ªeYxq| wjevig¨vb cixÿvt Mvp H2SO4 I mvgvb¨ NaNO2 Clr Mig K‡i Zv‡Z 2-1 †duvUv †dbj †hvM Ki‡j cÖ_‡g p-bvB‡Uªv‡mv †dbj| cieZ©x‡Z H2O †hvM Ki‡j jvj e‡Y©i B‡Ûv‡dbj Ges cieZ©x‡Z NaOH †hvM Ki‡j bxj e‡Y©i B‡Ûv‡dbj †mvwWqvg jeY Drcbœ nq| GwU †dbj kbv³KiY wewµqv| OH NaNO2/H2SO4 HO NO C6H5OH + H2SO4 H2O †dbj p-bvB‡Uªv‡mv‡dbj OH N O NaOH [H+ ] Na+ O O + H2O B‡Ûv‡dbj (jvj) B‡Ûv‡dbj †mvwWqvg jeY (bxj `ªeY) ‡eKg¨vb cybwe©b¨vm wewµqv: †nv‡m÷-†PjwbR (Hoechst-Celanese) Ilya †Kv¤úvwbi c¨vivwmUvgj Drcv`‡b †dbj‡K mivmwi HF GwmW cÖfve‡Ki Dcw¯
wZ‡Z A¨vwmwUK A¨vbnvBWªvBW [(Ac2O) or, (CH3CO)2O] mn A¨vwmUvB‡jkb Kiv nq| c‡i nvBWªw·j A¨vwgb (NH2OH) mn wewµqvq wK‡Uvg~jKwU‡K wK‡UvA·vB‡g cwiYZ Kiv nq| c‡i GwmW cÖfveb †eKg¨vb cybweb¨vm (Beckmann rearrangement) wewµqv Øviv A¨vgvB‡W cwiYZ K‡i c¨vivwmUvgj Drcbœ Kiv nq| OH Ac2O HF OH CH3C = O NH2OH OH CH3C = NOH SO2Cl2 CF3COOH OH NHCOCH3 wnbmevM© cixÿv (1, 2 Ges 3 A¨vwgb cv_©K¨KiY): wnbmevM© cixÿvi mvnv‡h¨ 1, 2 Ges 3 A¨vwgb‡K c„_K c„_Kfv‡e kbv³KiY Kiv hvq| 1 A¨vwgb- cÖvBgvwi A¨vwg‡bi g‡a¨ †ebwRb mvj‡dvwbj †K¬vivBW wgwkÖZ Ki‡j, †ebwRb A¨vjKvBj mvj‡dvb¨vgvB‡Wi Aat‡ÿc c‡o| RNH2 + C6H5SO2Cl C6H5SO2NHR †ebwRb A¨vjKvBj + HCl 2 A¨vwgb- †m‡KÛvwi A¨vwg‡bi mv‡_ †ebwRb mvj‡dvwbj †K¬vivBW wgwkÖZ Ki‡j, N, N-WvBA¨vjKvBj †ebwRb mvj‡dvb¨vgvB‡Wi Aat‡ÿc •Zwi nq hv NaOH `ªexf~Z nq bv| RNHR = C6H5SO2Cl NaOH –––– C6H5SO2NR2 (A`ªeYxq) + NaCl + H2O 3 A¨vwgb- Uviwkqvwi A¨vwgb †ebwRb mvj‡dvwbj †K¬vivB‡Wi mv‡_ †Kv‡bv wewµqvB K‡i bv| GB Aat‡ÿc NaOH Gi `ªe‡Y `ªeYxq| i¨vwmM cÖYvwj: CuFe hyM¥ cÖfve‡Ki Dcw¯
wZ‡Z Ges 250C ZvcgvÎvq †ebwRb, nvB‡Wªv‡Rb †K¬vivBW M¨vm I Aw·‡R‡bi mv‡_ wewµqv K‡i †K¬v‡iv‡ebwRb Drcbœ K‡i| Drcbœ †K¬v‡iv‡ebwRb‡K SiO2 cÖfve‡Ki Dcw¯
wZ‡Z I 425C ZvcgvÎvq cvwbmn DËß Ki‡j †dbj cvIqv hvq| + 2HCl + O2 CuFe, 250C †ebwRb †K¬v‡iv‡ebwRb Cl SiO2, 450C †dbj OH + HCl widigvUw¯‥ wewµqv: -†eªv‡gv G÷vi Gi mv‡_ Zn-Gi Dcw¯
wZ‡Z Kv‡e©vbvBj †h․Mmg~n wewµqv K‡i -nvB‡Wªvw· G÷vi Drcbœ K‡i †h wewµqvq Zv‡K widigvUw¯‥ wewµqv e‡j| D`vniY: -†eªv‡gv B_vBj Gwm‡UU Zn-Gi Dcw¯
wZ‡Z A¨vwmUvjwWnvB‡Wi mv‡_ wewµqv K‡i -nvB‡Wªvw· G÷vi Drcbœ K‡i| BrCH2COOC2H5 + CH3CHO Zn CH3CHCH2COOC2H5 + ZnBr OH 2-nvB‡Wªvw· G÷vi -‡eªv‡gv G÷vi

636 •Re imvqb CHEMISTRY PLUS ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES C6H6+CH3COCl AnhydrousAlCl3 40C C6H5 - COCH3 + HCl C6H6+CH3COCl AnhydrousAlCl3 40C Cl +NH3 D”P Pv‡ c 200C NH2 +HCl bvgavix wewµqv I Zv‡`i Drcv`mg~n: wewµqv Drcbœ †h․M ms‡KZ wewµqv Drcbœ †h․M ms‡KZ DU©R wewµqv A¨vj‡Kb R – R m¨vÛ‡gqvi †ebwRb RvZK C6H5 – Br Kvwe©j A¨vwgb wewµqv wdbvBj AvB‡mv mvqvbvBW C6H5 – NC K¨vwbRv‡iv GwmW I A¨vj‡Kvnj RCOONa, ROH ivBgvi UvBg¨vb m¨vwjmvj-wWnvBW C6H4(OH) – CHO DBwjqvgmb B_vi R – O – R WvI wewµqv †dbj Ar – OH m¨v‡cvwbwd‡Kkb mvevb RCOONa †Kve wewµqv m¨vwjmvBwjK GwmW C6H4(OH)COOH ndg¨vb ÿz`ªvskKiY cÖvBgvix A¨vwgb R – NH2 j¨vWv‡ii g¨vbv‡m e¨v‡KjvBU – cviwKb wewµqv wmbvwgK GwmW C6H5–CH=CH–COOH REAL TEST ANALYSIS OF PREVIOUS YEAR QUESTIONS STEP 01 ANALYSIS OF GENERAL UNIVERSITY QUESTION DU 01. wb‡Pi wewµqvi Drcv`/Drcv`mg~n Kx? [DU-Ka.2017-18; JU.2009-10] HCHO MvpNaOH `ªeY ? A. CH3OH+CH4 B. CH4 C. CH3OH+HCOOH D. HCOOH mwVK DËi: C. CH3OH+HCOOH e¨vL¨v: 2HCHO MvpNaOH `ªeY CH3OH+HCOOH wewµqvwU K¨vwbRv‡iv wewµqv bv‡g cwiwPZ| 02. ‡ebRvgvB‡Wi nd&g¨vb ÿz`ªvskKiY wewµqvi Drcv` wK? [DU-Ka.2016-17, RU. 2014-15] A. Aniline B. Nitrobenzene C. Nitroanilide D. Diphenyl amide mwVK DËi: A. Aniline e¨vL¨v: +Br2+KOH + K2CO3+ KBr+H2O †ebRvgvBW A¨vwbwjb * ndg¨vb Drcv` wjL‡Z GKwU Kve©b Kg n‡e| 03. Kvwe©j A¨vwgb cixÿvi gva¨‡g †Kvb ai‡Yi •Re †h․M kbv³ Kiv hvq? [DU-Ka.2016-17, h.‡ev. 2016] A. Primary amine B. Aldehyde C. Amide D. Primary alcohol mwVK DËi: A. Primary amine e¨vL¨v: Kvwe©j A¨vwgb cixÿvi gva¨‡g cÖvBgvix (1°) A¨vwgb Ges †K¬v‡ivdig (CHCl3) kbv³KiY Kiv nq| mvgÄm¨ wewµqv‡K Ôn¨vKviÕ wn‡m‡e g‡b ivLv hvq| n¨v Kv i n¨v‡jvdig Kvwe©j A¨vwgb ivBgvi UvBg¨vb kZ©: NaOH/KOH, 60C 04. wb‡gœi †KvbwU K¨vwbRv‡iv wewµqv? [DU.2013-2014] A. 2HCHO 50%NaOH ,2030C CH3OH + HCOONa B. 2CH3CHO dil .NaOH, 2030C CH3CH(OH)CH2CHO C. CH3CHO LiAH4 Conc.HCl CH3CH2OH D.CH3CONH2(aq)+Br2+4NaOH Heat CH3NH2 + 2NaBr+Na2CO3+2H2O mwVK DËi: A. e¨vL¨v: K¨vwbRv‡iv wewµqvt 2HCHO CH OH HCOONa 3 05. wb‡Pi wewµqvq Dcv`vb P Ges Q ‡Kvb †m‡U we`¨gvb CH3 – CH2 CH(OH) CH3 I 2 /OH P + Q [DU. 2006-07] A. CH3CH2CH3; CH4 respectively B. CH3CH2COO-; CHI3 respectively C. CH3CH3; CH3- CH3 respectively D. CH3CH2CH2CH3; I2 respectively mwVK DËi: B. CH3CH2COO– ; CHI3 respectively e¨vL¨v: GwU g~jZ Av‡qv‡Wvdig Drcbœ nIqvi wewµqv| GLv‡b weDUvbj- 2 ‡_‡K Av‡qvwWb I ÿv‡ii wewµqvq Av‡qv‡Wvdi‡gi njy` Aat‡ÿc c‡o I CH3 – CH2COO– Drcbœ nq| wewµqvt CH3 – CH2 CH(OH) CH3 I 2 /OH CH3 – CH2COO– + CHI3 06. wb‡Pi wewµqvi cÖavb Drcv` wK? [DU. 2005-2006] ? A. C6H5 – COCH3 B. C6H5 – CH3 C.C6H5 – NH3 D. All mwVK DËi: A. C6H5 – COCH3 e¨vL¨v: ‡ebwRb 40°C ZvcgvÎvq AlCl3 Gi Dcw¯
wZ‡Z CH3COCl Gi mv‡_ wewµqv K‡i A¨vwm‡Uv‡d‡bvb Drcbœ K‡i| 07. ‡K¬v‡iv‡ebwRb I A¨v‡gvwbqv 200°C ZvcgvÎvq I D”P Pvc cÖfve‡Ki Dcw¯
wZ‡Z Drcbœ K‡i- [DU. 2004-05, CU. 2003-04] A. bvB‡Uªv‡ebwRb B. †K¬v‡iv A¨vwg‡bv †ebwRb C. A¨vwg‡bv †K¬v‡iv A¨vwbwjb D. A¨vwbwjb mwVK DËi: D. A¨vwbwjb e¨vL¨v: 08. ‡Kve wewµqvq wb‡Pi †KvbwU Drcbœ nq? [DU. 03-04; JU. 07-08, RU. 07-08; IU. 2014-15; KU. 2014-15] A. m¨vwjmvBwjK GwmW B. †eb‡RvwqK GwmW C. _¨vwjK GwmW D. wcKwiK GwmW mwVK DËi: A. m¨vwjmvBwjK GwmW e¨vL¨v: ‡Kve wewµqvq m¨vwjmvBwjK GwmW Drcbœ nq| 09. 4-7 evqyPvc I 125C ZvcgvÎvq †mvwWqvg wd‡b‡Ui mv‡_ CO2 Gi wewµqvq Drcbœ †h․MwU‡K HCl Øviv Av`ª©we‡kølY Ki‡j A‡_©vnvB‡Wªvw· †eb‡RvwqK GwmW Drcbœ nq| G wewµqvwU n‡jv- [DU.2003-04,JU 2012-13] A. †K¬B‡Rb-w¯§W wewµqv B. DU©R-wdwUM wewµqv C. BUvW© wewµqv D. †Kve wewµqv mwVK DËi: D. †Kve wewµqv NaCH OH +CO2 ONa ONa COONa HCl OH COOH +NaCl 0-nvBWªw·‡ebRwqK GwmW (cÖavb Drcv`b) †mvwWqvg †d‡bU ‡mvwWqvg m¨vwimvB‡jU e¨vL¨v: NaOH †mvwWqvg wd‡bU †mvwWqvg m¨vwjmvB‡jU OH CONH2 NH2

CHEMISTRY PLUS •Re imvqb 637 ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES OH + CHCl3 + KOH 6070C OH CHO JnU 01. wb‡Pi A¨vgvBW¸‡jvi g‡a¨ †KvbwU ndg¨vb ÿz`ªvskKiY wewµqvq AskMÖnY K‡i bv? [JnU-Ka. 2016-17] A. CH3-CONH2 B. (CH3)2CH-CONH2 C. CH3-CONH-CH3 D. CH3-CH2-CONH2 mwVK DËi: C. CH3-CONH-CH3 e¨vL¨v: 2 A¨vwgb AskMÖnY K‡i bv| 02. wb‡gœi ‡KvbwU A¨vjWj Nbxfeb wewµqv cÖ`k©b K‡i? [JnU. 2015-16; JU-A. 2019-20] A. H–CHO B. CH3 – CHO C. (CH3)2–C–CHO D. Ph– CHO mwVK DËi: B. CH3 – CHO e¨vL¨v: kZ©: -Kve©‡b nvB‡Wªv‡Rb hy&³ A¨vjwWnvBW ïay A¨vjWj Nbxfeb wewµqv †`q Ges (A) HCHO, (C) (CH3) – C – CHO Ges (D) Ph – CHO Gi †KvbwU‡ZB -nvB‡Wªv‡Rb †bB| [Kvh©Kvix g~j‡Ki cv‡ki Kve©bwU‡K ejv nq -Kve©b Avi-Kve©‡bi mv‡_ hy³ H ‡K ejv nq - nvB‡Wªv‡Rb] 03. m¨vwjmvjwWnvBW •Zwi Kiv hvq wb‡Pi †Kvb wewµqvi gva¨‡g? [JnU. 2014-15] A. ivBgvi-UvBg¨vb wewµqv B. wd«‡Wj-µvdU wewµqv C. †Kve wewµqv D. A¨vjWj Nbxfeb wewµqv mwVK DËi: A. ivBgvi-UvBg¨vb wewµqv e¨vL¨v: ivBgvi-UvBg¨vb wewµqvq ‣Zix nq Ñ m¨vwjmvBj A¨vjwWnvBW wd«‡Wj µvdU wewµqvq •Zix nq Ñ UjyBb/A¨vwm‡Uv‡d‡bvb ‡Kve wewµqvq •Zix nq Ñ m¨vwjmvBwjK GwmW A¨vjWj Nbxfeb wewµqvq •Zix nq Ñ nvB‡Wªvw· A¨vjwWnvBW/ nvB‡Wªvw· wK‡Uvb 04. wb‡Pi wewµqvwUi bvg nj- [ JnU 2007-2008] A. Kvwe©j A¨vwgb B. DUR©-wdwUM C. wd«Wj-µvdUm D. ivBgvi UvBg¨vb mwVK DËi: D. ivBgvi UvBg¨vb JU 01. K¨vwbRv‡iv wewµqvi Rb¨ cÖ‡qvRbxq ZvcgvÎv KZ? [JU-D1.2017-18] A. 20 – 30° C B. 50 – 60°C C. 80 – 90°C D. 90 – 100°C mwVK DËi: A. 20 – 30° C e¨vL¨v: K¨vwbRv‡iv wewµqv: H-CHO+NaOH 50%NaOH ,2030C HCOONa + CH3OH digvjwWnvBW †mvwWqvgdi‡gU wg_vbj 02. + CH3Cl Dry AlCl 3 ? [JU-D1.2017-18] A. + CH4 + HCl B. + CH4 C. + H2 D. + HCl mwVK DËi: D e¨vL¨v: + CH3Cl Dry AlCl 3 + HCl wewµqvwU wd«‡Wj µvdU A¨vjKvB‡jkb wewµqv bv‡g cwiwPZ| 03. wK¬‡gb‡mb weRvi‡Y Kx e¨eüZ nq? [JU-D3.2017-18] A. Zn B. Hg C. Zn.Hg+ jNyHCl D. Zn.Hg+ Mvp HCl mwVK DËi: D. Zn.Hg+ Mvp HCl e¨vL¨v: CH3-CHO+4[H] CH3-CH3+H2O GB wewµqv‡K wK¬‡gbmb weRviY wewµqv ejv nq| 04. „2RX + 2Na = R – R + 2NaX‟ (‡hLv‡b R= A¨vjKvBj, X=n¨vjvBW) wewµqvwUi bvg Kx? [JU-D7.2017-18] A. DU©R-wdwUM wewµqv B. K¨vwbRv‡iv wewµqv C. DU©R wewµqv D. ‡KvbwUB bq mwVK DËi: C. DU©R wewµqv e¨vL¨v: ï®‥ B_v‡i (C2H5OC2H5-G) `ªexf~Z A¨vjKvBj n¨vjvBW I avZe †mvwWqv‡gi wgkªY‡K wid¬v· K‡i D”PZi A¨vj‡Kb cÖ¯‧Z Kiv hvq| G wewµqv‡K DU©R wewµqv e‡j| R-X+2Na+X-R R-R+2NaX 05. wb‡Pi wewµqvwUi bvg wK? [JU-D9.2017-18] C=O+4 [H] HCl Zn,Hg –CH2– +H2O A.wK¬‡gb‡mb weRviY B. DBwjqvgmb ms‡kølY C. †Kve wewµqv D. ‡KvbwUB bq mwVK DËi: A.wK¬‡gb‡mb weRviY e¨vL¨v: wRsK A¨vgvjMvg Ges DËß nvB‡Wªv‡K¬vwiK Gwm‡Wi wewµqvq Drcbœ Rvqgvb nvB‡Wªv‡Rb Øviv A¨vjwWnvBW I wK‡Uv‡bi weRvi‡bi d‡j mswkøó nvB‡Wªv Kve©b MVb K‡i| G‡K wK¬‡gbmb weRviY wewµqv e‡j| C=O+4 [H] HCl Zn,Hg –CH2– +H2O 06. †Kvb †h․MwU A¨vjWj wewµqv w`‡e? [JU-A2.2017-18; RU. 2019-20; MBSTU. 2019-20; 17-18; JnU. 2015-16; KU.2014-15, KU- 09-10; DU-7Clg. 2019-20] A. HCHO B. C6H5CHO C. H3CCHO D. (H3C)3CCHO mwVK DËi: C. H3CCHO e¨vL¨v: -H hy³ A¨vjwWnvBW mg~n A¨vjWj wewµqv †`q| 07. Kvwe©j A¨vwgb wewµqvi •ewkó¨ †KvbwU? [JU-A9.2017-18] A. CHCl3 I Rjxq KOH e¨envi Kiv nq B. cÖvBgvix A¨vwgb kbv³ Kiv hvq C. †m‡KÛvix I Uviwmqvix A¨vwgb kbv³ Kiv hvq D. A¨vj‡Kvnj kbv³ Kiv hvq mwVK DËi: B. cÖvBgvix A¨vwgb kbv³ Kiv hvq e¨vL¨v: Kvwe©j A¨vwgb cixÿvi mvnv‡h¨ cÖvBgvix A¨vwg‡bi Aw¯ÍZ¡ cÖgvY Kiv hvq| 08. Abv`ª© AlCl3-Gi Dcw¯
wZ‡Z †ebwRb I A¨vjKvBj n¨vjvB‡Wi wewµqv‡K wK e‡j? [JU-D. 2016-17] A. wMÖMbvW© wiA¨vKkb B. wbDwK¬IwdwjK cÖwZ¯
vcb C. wd«‡Wj-µ¨vdU wewµqv D. n¨v‡jv‡R‡bkb mwVK DËi: C. wd«‡Wj-µ¨vdU wewµqv 09. wb‡gœi †KvbwU A¨vjWj Nbxfeb wewµqv †`q bv? [JU.2009-10, JnU. 17-18] A. C6H-CH2-CHO B. H2C-CO-CH3 C. (H3C)3C-CHO D. H3C-CH2-CHO mwVK DËi: C. (H3C)3C-CHO e¨vL¨v: g‡b ivL‡e, mPivPi K¨vwbRv‡iv wewµqv †`q-wZbwU †h․M i) H-CHO ii) (CH3)3-C-CHO iii) CHO evwK †h․M ¸‡jv mvaviYZ †`q bvwe‡kl `„wó AvKl©Yt K¨vwbRv‡iv wewµqv A¨vjWj Nbxfeb wewµqvi wecixZ| Dc‡ii wZbwU †h․M-A¨vjWj Nbxfeb wewµqv w`‡e bv| Zn - Hg Mvp HCl ï®‥ B_vi CH3 Cl CH3Cl CH3

638 •Re imvqb CHEMISTRY PLUS ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES jNy H2SO4 H - ,2H2O OH 10. †dbj, †K¬v‡ivdig Ges Rjxq Kw÷K ÿvi `ªe‡Yi wgkÖY‡K 60-70C DòZvi DËß Ki‡j m¨vwjmvBj A¨vjwWnvBW Drcbœ nq| wewµqvwUi bvg- [ JU 2012-13] A. d«vBm cybwe©b¨vm B. ivBgvi UvBg¨vb C. †Kve D. j¨v‡Wivi-g¨vbv‡m mwVK DËi: B. ivBgvi UvBg¨vb 11. ï®‥ B_vixq `ªe‡Y avZe †mvwWqvg mn A¨vivBj n¨vjvBW I A¨vjKvBj n¨vjvBW wid¬v· Ki‡j A¨vjKvBj †ebwRb Drcbœ nq| wewµqvwUi bvg- [JU.2012-2013] A. †K¬B‡Rb-w¯§W B. DU©R-wdwUM C. BUvW© D. †Kve mwVK DËi: B. DU©R-wdwUM RU 01. K¨vwbRv‡iv wewµqvq AskMÖnY K‡i- [RU-C3.2017-18; IU.2015-16; BSMSTU.2016-17] A. CH3NH2 B. (CH3)3C-CHO C. CH3CHO D. CH3CH2OH mwVK DËi: B. (CH3)3C-CHO e¨vL¨v: - nvB‡Wªv‡Rb wenxb A¨vjwWnvBW mg~n K¨vwbRv‡iv wewµqvq AskMÖnY K‡i| †hgb: HCHO, C6H5CHO, (CH3)3-C-CHO 02. C2H5ONa(alc)+CH3I(alc) C2H5OCH3 + NaI(s) wewµqvwUi bvg- [RU. 2017-18] A. wd«‡Wj-µvd&Um wewµqv B. DBwjqvgmb wewµqv C. DU©R wewµqv D. ‡Kve wewµqv mwVK DËi: B. DBwjqvgmb wewµqv e¨vL¨v: A¨vj‡Kvn‡j `ªexf~Z ‡mvwWqvg ev cUvwmqvg A¨vj‡KvB·v‡Wi (ev wdb·vB‡Wi) m‡½ A¨vjKvBj n¨vjvBW‡K DËß Ki‡j B_vi Drcbœ nq) G wewµqvwU‡K DBwjqvgmb B_vi ms‡kølY ejv nq| 03. A¨vj‡Wvj Kb‡Wb‡mkb wewµqvq mwVK ZvcgvÎv? [RU-G1.2017-18] A.20-30C B. 30-35C C. 10-20C D. 40-50C mwVK DËi: A.20-30C 04. wewµqvwUi wewµqK (R) Gi bvg wK? [RU-.2017-18] R + CH3 – C O CH 3 A. A¨vwbwjb B. †ebwRb Wvqv‡Rvwbqvg jeY C. †ebRvjwWnvBW D. wKDwgb nvB‡Wªv cviA·vBW mwVK DËi: D. wKDwgb nvB‡Wªv cviA·vBW e¨vL¨v: 05. wb‡Pi †Kvb †h․MwUi ùzUbvsK me‡P‡q †ekx? [RU-H. 2014-15] A. C2H6 B. C2H5OH C. CH3OCH3 D. CH3OH mwVK DËi: B. C2H5OH e¨vL¨v: A¨vj‡Kvnjmg~n nvB‡Wªv‡Rb eÜb m„wó Ki‡Z cv‡i| ZvB G‡`i ùzUbvsK Zzjbvg~jKfv‡e †ekx| Z‡e wg_vb‡ji (65C) †P‡q B_vb‡ji (78.3C) ùzUbvsK †ekx| CU 01. 2C6H5CHO+NaOHC6H5CH2OH+ C6H5COONa -G wewµqvi bvg wK? [CU-A.2017-18] A. K¨vwbRv‡iv wewµqv B. ndg¨vb wewµqv C. A¨vjWj Nbxfeb D. DU©R wewµqv mwVK DËi: A. K¨vwbRv‡iv wewµqv e¨vL¨v: - H wenxb GKB ai‡bi `yB AYy A¨vjwWnvBW jNy ÿv‡ii Dcw¯
wZ‡Z GK AYy RvwiZ Ges Aci AYy weRvwiZ nIqvi wewµqvwU K¨vwbRv‡iv wewµqv bv‡g cwiwPZ| 02. HBr wb‡Pi †Kvb&wUi mv‡_ Anti-Markovnikov addition reaction (ms‡hvRb wewµqv) cÖ`vb K‡i bv? [CU-F1.2016-17] A. Propene B. l-butene C. 2-Butene D. 2-pentene E. 2-hexene mwVK DËi: C. 2-Butene e¨vL¨v: Anti-Markonikov addition reaction HBr- Gi mv‡_ ïay AcÖwZmg I Am¤ú„³ nvB‡WªvKve©b cÖ`k©b K‡i| 2-butene Am¤ú„³ wKš‧ cÖwZmg ZvB GwU HBr- Gi mv‡_ D³ wewµqv cÖ`k©b K‡i bv| 03. ‡dbj n‡Z m¨vwjmvBwjK GwmW Drcv`‡bi wewµqvwUi bvg wK? [CU-G. 16-17, h.‡ev. 2017] A. ivBgvi-UvBg¨vb wewµqv B. ‡Kve wewµqv C. DBwjqvgmb wewµqv D. wd«‡Wj-µvd&U wewµqv E. DU©R-wdwUM wewµqv mwVK DËi: B. †Kve wewµqv e¨vL¨v: + NaCl m¨vwjmvBwjK GwmW 04. R-NH2+CHCl3+3KOH R-N=C+3KCl+3H2O- wewµqvwUi bvg wK? [CU-G. 2016-17] A. A¨vjWj Nbxfeb wewµqv B. Wvqv‡RvKiY wewµqv C. A¨vmvB‡jkb wewµqv D. Kvwe©j A¨vwgb wewµqv E. m¨vÛ‡gqvi wewµqv mwVK DËi: D. Kvwe©j A¨vwgb wewµqv e¨vL¨v: 1 A¨vwgb Ges †K¬v‡ivdig kbv³Ki‡Yi wewµqv n‡jv Kvwe©j A¨vwgb wewµqv| 05. Ô‡h Kve©‡b Kg msL¨K H- cigvYy hy³ _v‡K, ‡m Kve©b ‡_‡KB ‡ewkifvM H- cigvYy AcmvwiZ nqÕ| GwU n‡jv ------| [CU. 2015-16] A. ‡i‡Rvb¨vÝ m~Î B. wd«‡Wj µvdU m~Î C. K¨vwbRv‡iv m~Î D. mvB‡Rd m~Î E. n¨v‡jvdig m~Î mwVK DËi: D. mvB‡Rd m~Î e¨vL¨v: A¨vj‡Kvnjxq cUvwkqvg nvB‡Wªv-A·vBW †kvlY K‡i nvB‡Wªv‡Rb n¨vjvBW| †h Kve©b †_‡K n¨v‡jv‡Rb wb‡e wVK Zvi cv‡ki Kve©b †_‡K nvB‡Wªv‡Rb‡K wb‡e| †h Kve©b nvB‡Wªv‡Rb Kg †mLvb †_‡K †ewki fvM ‡ÿ‡Î wb‡e| 06. wb‡Pi ‡Kvb wewµqvq Kve©w·wjK GwmW •Zix nq? [CU-F. 2015-16] A. A¨vjWj wewµqv B. ndg¨vb wW‡MÖ‡Wkb wewµqv C. K¨vwbRv‡iv wewµqv D. wd«‡Wj µvdU wewµqv E. ivBgvi-UvBg¨vb wewµqv mwVK DËi: C. K¨vwbRv‡iv wewµqv e¨vL¨v: K¨vwbRv‡iv wewµqv : (i) - nvB‡Wªv‡Rb _vK‡e bv (ii) GKB mv‡_ weRvwiZ n‡q GjwWnvBW †_‡K ol I RvwiZ n‡q oic GwmW n‡e| CoU 01. †KvbwU K¨vwbRv‡iv wewµqv cÖ`k©b Aÿg? [CoU–A. 2019-20] A. HCHO B. C2H2CHO C. C6H5CHO D. (CH3)3 C–CHO mwVK DËi: B. C2H2CHO e¨vL¨v: †hme A¨vjwWnvB‡Wi -nvB‡Wªv‡Rb cigvYy †bB †m¸‡jv K¨vwbRv‡iv wewµqv †`q| -nvB‡Wªv‡Rb cigvYy bv _vKvq digvjwWnvBW, UªvBwg_vBj A¨vwmUvjwWnvBW, †ebRvjwWnvBW A_ev †h †Kvb A¨v‡iv‡gwUK A¨vjwWnvBW K¨vwbRv‡iv wewµqvq AskMÖnY K‡i| CH CH3 CH3 wKDwgb (AvB‡mv †cÖvcvBj †ebwRb) wKDwgb (nvB‡Wªv cvi A·vBW) C-OH CH3 CH3 (R) H,+H2O OH + O2 + CH3- CH3 C =O

CHEMISTRY PLUS •Re imvqb 639 ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES KU 01. wd«‡Wj µ¨vdU wewµqvq †KvbwU e¨eüZ nq? [KU. 2015-16, CU. 2016-17] A. Conc. HNO3 B. Anhydrous AlCl3 C. sn/HCl D. Na/either mwVK DËi: B. Anhydrous AlCl3 IU 01. H3C-C-NH2+Br2+KOH H3C-NH2 wewµqvwUi bvg wK? [IU.2015-16; JU-D5.2017-18] A. DU©R- wdwUM B. wW-Kve©w·‡jkb C. K¨vwbRv‡iv D. ndg¨vb ÿz`ªvskKiY mwVK DËi: D. ndg¨vb ÿz`ªvskKiY e¨vL¨v: H3C-C-NH2+Br2+KOH H3C-NH2 + KBr + K2CO3 + H2O wewµqvwU ndg¨vb wW‡MÖ‡Wkb wewµqv bv‡g cwiwPZ| 02. Kve©w·wjK Gwm‡Wi -Kve©‡b n¨v‡jv‡R‡bkb wewµqv- [IU.2011-12] A. wWKve©w·‡jkb B. †¯‥jvi C. M¨vewi‡qj D. †nj-†fvjnvU© †Rwjb¯‥x mwVK DËi: D. †nj-†fvjnvU© †Rwjb¯‥x BU 01. wb‡gœi wewµqvwUi bvg wK? 2C6H5–CH=O + conc.KOHC6H5–COOH+C6H5CH2–OH [BU. 2015-16] A. Aldol condensation B. Cannizzaro reaction C. Friedel-Crafts reaction D. Perkin reaction mwVK DËi: B. Cannizzaro reaction STEP 02 ANALYSIS OF SCIENCE & TECHNOLOGY QUESTION SUST 01. wb‡Pi †Kvb mshyw³‡Z ivBgvi UvBg¨vb wewµqv msMwVZ nq? [SUST 06-07] A. A¨vwbwjb, †K¬v‡ivdig, A¨vjKvwj B. ‡dbj, †K¬v‡ivdig, A¨vjKvwj C. A¨vwbwjb, Kve©b †UUªv‡K¬vivBW, A¨vjKvwj D. ‡dbj, wg_vBj †K¬vivBW, A¨vjKvwj mwVK DËi: B. ‡dbj, †K¬v‡ivdig, A¨vjKvwj e¨vL¨v: C6H5–OH+CHCl3+NaOH 6070C C6H4(OH)–CHO 02. ndg¨vb ÿz`ªvskKiY (wW‡MÖ‡Wkb) wewµqvq †KvbwU n‡Z †cÖvcvBj A¨vwgb •Zwi Kiv hvq? [SUST-B93] A. wg_vb¨vgvBW B. B_vb¨vgvBW C. ‡cÖvcvb¨vgvBW D. weDUvb¨vgvBW E. ‡c›Uvb¨vgvBW mwVK DËi: D. weDUvb¨vgvBW e¨vL¨v: ndg¨vb ÿz`ªvskKiY wewµqvq C-msL¨v GK n«vm cvq ZvB wZb C-wewkó †cÖvcvBj A¨vwgb •Zix Kivi Rb¨ wewµqK wn‡m‡e Pvi C-wewkó weDUvb¨vgvBW e¨eüZ nq| O || CH3 – CH2 – CH2 – C – NH2 + Br2 + 4KOH weDUvb¨vgvBW CH3-CH2-CH2-NH2 + 2KBr + K2CO3 + 2H2O ‡cÖvcvBj A¨vwgb MBSTU 01. †Kvb †h․MwU K¨vwbRv‡iv wewµqv w`‡e? [MBSTU-C. 2019-20] A. H3CCHO B. H3CCOCH3 C. (H3C)3CH2CHO D. HCHO mwVK DËi: D. HCHO 02. wb‡Pi †Kvb wewµqvq bZyb Kve©b-Kve©b eÜb •Zix nq? [MBSTU-16-17] A.K¨vwbRv‡iv wewµqv B.wK¬‡gb‡mb wewµqv C. wd«‡Wj-µ¨vdUm wewµqv D. RviY wewµqv mwVK DËi: C. wd«‡Wj-µ¨vdUm wewµqv e¨vL¨v: wd«‡Wj-µvdUm wewµqvwU Ñ + CH3Cl AlCl 3 + HCl wd«‡Wj µvdU wewµqv A¨vjKvBj-A¨vivBj ev A¨vjKvBj A¨vjKvBj bZzb eÜb •Zwi K‡i| 03. ‡Kvb †h․MwU K¨vwbRv‡iv wewµqv †`q bv? [BSMRSTU. 2016-17, 2017-18] A.H-CHO B. C6H5-CHO C. (CH3) C-CHO D. C6H5 - CH2CHO mwVK DËi: D. C6H5 - CH2CHO e¨vL¨v: - nvB‡Wªv‡Rb hy³ A¨vjwWnvBW K¨vwbRv‡iv wewµqv †`q bv| –C : Kvh©Kixg~j‡Ki mv‡_ hy³ C n‡”Q -Kve©b| –H : –C Gi mv‡_ e܇b Ave× H n‡”Q –H| NSTU 01. †Kve wewµqvq Kx •Zwi nq? [NSTU-A. 2019-20] A. A¨vj‡Kb B. A¨vjwKb C. A¨vjKvBb D. D”PZi A¨vj‡Kb mwVK DËi: †bB e¨vL¨v: **†Kve wewµqvq m¨vwjmvBwjK GwmW Drcbœ nq wKš‧ †Kve ms‡køl‡Y A¨vj‡Kb Drcbœ nq| STEP 03 ANALYSIS OF ENGINEERING & BUTex QUESTION BUET 01. ‡ebwRb I †cÖvwcb †Kvb wewµqv Øviv wKDwgb Drcbœ K‡i? [BUET: 11-12] A. Kvcwjs wewµqv B. wd«‡Wj -µvdU wewµqv C. Nbxfeb wewµqv D ivBgvi-UvBg¨vb wewµqv mwVK DËi: B. wd«‡Wj -µvdU wewµqv KUET 01. wb‡Pi ‡KvbwU DUR© wewµqv? [KUET. 2015-16] A. R –X + 2Na + X–R dry Eather R–R + 2NaX B. R–CCH + 2H2 150C.Ni R–CH2–CH3 C. R–X + 2[H] Zn/HCl R–H + HX D. C6H6 + 3Cl2 Dry FeCl 2 C6Cl6 + 6HCl E. C6H6 + RX Dry AlCl 3 C6H5–R + HX mwVK DËi: A. e¨vL¨v: R –X + 2Na + X–R dry Eather R–R + 2NaX DUR© wewµqv GB wewµqvq †mvwWqvg avZzi mv‡_ A¨vjKvBb n¨vjvB‡Wi wewµqvq D”PZi A¨vj‡Kb Drcv`b Kiv nq| CUET 01. ‡Kvb †h․M‡K Br2 Ges KOHGi Rjxq `ªe‡Y DËß Ki‡j wg_vBj A¨vwgb Drcbœ nq? [CUET. 2015-16] A. wg_vBj mvqvbvBW B. A¨vwµ‡jvbvBUªvBj C. wg_vBj A¨vgvBb D. -A¨vgvB‡bv-‡cÖvcv‡bvwqK GwmW E. B_vb¨vgvBW mwVK DËi: E. B_vb¨vgvBW 02. wb‡Pi cÖkœ¸‡jv †_‡K mwVK DËi †e‡Q bvI| [CUET. 2014-15] i) ndg¨vb wW‡MÖ‡Wkb wewµqvi cÖavb Drcv` †KvbwU? ii) wb‡Pi †h․M¸wji g‡a¨ †KvbwU RwUj †h․M? A. R – CONH2; CH3COCl B. R – NH2; [Ag(NH3)2]Cl C. R – COCl; Ca(OCl)Cl D. R – COBr; (CH3CO)2O mwVK DËi: B. R – NH2; Ag(NH3)2Cl O 0

640 •Re imvqb CHEMISTRY PLUS ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES CH C O X BUTex 01. Br2/KOH; GB weKviKwU †Kvb ivmvqwbK wewµqvq e¨envi Kiv nq? [BUTex. 2015-16] A. Wurtz reaction B. Williamson reaction C. Hoffmann degradation reaction D. Friedel Craft reaction mwVK DËi: C. Hoffmann degradation reaction e¨vL¨v: CH3–CONH2+Br2+KOH CH3–NH2+K2CO3+KBr+H2O [10 A¨vwgb •Zixi cÖwµqv] 02. wK¬‡gbmb weRvi‡Y †ebRvjwWnvBW n‡Z wb‡¤œi †KvbwU Drcbœ nq? [BUTex. 2015-16] A. Benzene B. Benzoic Acid C. Toluene D. Benzylalcohol mwVK DËi: C. Toluene e¨vL¨v: 03. wb‡Pi †KvbwU †Kve wewµqvq Drcbœ nq? [BUTex. 2014-15, JU. 2014-15] A. Salicylic acid B. Picric acid C. Thalic acid D. Benzoic acid mwVK DËi: A. Salicylic acid STEP 04 ANALYSIS OF MEDICAL & HSC QUESTION DAT 01. wb‡Pi †KvbwU •Re Gwm‡Wi wWKve©w·‡jkb wewµqvq cÖavb Drcbœ c`v_©? [DAT. 2019-20] A. A¨vjKvBb B. A¨vjwKb C. A¨vj‡Kvnj D. A¨vj‡Kb mwVK DËi: D. A¨vj‡Kb PART 14 Kvh©Kixg~jK kbv³Ki‡Y IR Spectroscopy m¤úwK©Z Z_¨vewj Item- 01t IR Spectroscopy cÖv_wgK Z_¨tÑ •Re AYy‡Z wewfbœ Kvh©Kix g~j‡Ki Dcw¯
wZ kbv³Ki‡Yi GKwU D‡jøL‡hvM¨ c×wZ IR Spectroscopy| AYyi K¤úb‡K mvaviYZ `yBfv‡M fvM Kiv nq| h_vtÑ cÖmviY eµxKiY GKwU †h․M IR mwµq nIqvi kZ©tÑ †h․MwU AcÖwZmg n‡Z n‡e| cwieZ©bkxj I ¯
vqx WvB‡cvj †gv‡g›U _vK‡Z n‡e| e܇bi †h‡Kvb K¤ú‡bi Rb¨ dvÛv‡g›Uvj e¨v‡Ûi mgxKiY Ñ (wewKiY) = 1 2c K ‡hLv‡b (wewKiY) = †kvlY e¨v‡Ûi Zi½ msL¨v, K = †kvl‡Y AskMÖnYKvix e܇bi ej aªæeK, = jNy fi (reduced mass) (e܇b hy³ cigvYy `ywUi) 1 2 1 2 m m m m Ges C = Av‡jvi †eM| IR eY©vwj ev Ae‡jvwnZ eY©vwj‡K cÖavbZ `ywU fv‡M fvM Kiv nq| h_vtÑ Kvh©Ki MÖæc ev MÖæc K¤úv¼ AÂj : (4000–1400)cm–1 wd½vi wcÖ›U AÂj : 1400cm–1 – 650cm–1 eµKi‡Y `y‡Uv e܇bi g‡a¨ †Kv‡Yi cwieZ©b N‡U| Pvi ai‡bi eµKiY nq- iwKs, wmRvwis, IqvwMs, UzBw÷s| Item- 02t IR e¨vÛ‡K cÖfvweZ Kivi wbqvgKtÑ B‡jKUªwbK cÖfvetÑ †g‡mvgvwiK cÖfve BbWvKwUf cÖfve wdì cÖfve msKivqY cÖfve| nvB‡Wªv‡Rb eÜb cÖfve| eÜb †KvY Gi cÖfve| KbRy‡Mkb cÖfve| eÜb ej aªæeK cÖfve| †cvjvwiwUi cÖfve| wis †÷ªBb cÖfve| †i‡Rvb¨vÝ cÖfve| A¨vjwWnvB‡W CH e܇bi Rb¨ 2700 bcm1 A‡j IR †kvlY e¨vÛ cvIqv †M‡jI wK‡Uv‡b Zv _v‡K bv| G †_‡K A¨vjwWnvBW I wK‡Uv‡bi cv_©K¨ Kiv hvq| IR Gi gvb n«vm cvIqvi KviYt PvwµK wK‡Uv‡bi †ÿ‡Î ej‡qi AvKvi hZ †QvU n‡e C = O †kvlY e¨v‡Ûi gvb ZZ D”P n‡e| cv‡ki wP‡Î IR Gi gvb n«vm cvIqvi KviY: PvwµK wK‡Uv‡bi P‡µi eÜb †KvY e„w×i mv‡_ mv‡_ eÜb cxob ev Uvb Kg‡Z _vK‡j C = O g~j‡Ki IR gvb n«vm †c‡Z _v‡K| O O O O Item- 03t KwZcq Kvh©Kix g~j‡Ki Ae‡jvwnZ iwk¥i †kvlY eY©vjxi Zi½ •`N¨©tÑ eÜb cÖK…wZ eÜb ‡kvlY eY©vjxi Zi½ msL¨v (cm–1 ) nvB‡Wªv‡R‡bi mv‡_ eÜb O–H 3600 N–H 3400 O–H (Kve©w·wjK GwmWÑG) 2500–3300 wÎeÜb –CC A_ev –CN 2200 C=C wØeÜb A¨vjwK‡b C=C 1650 A¨vwi‡b C=C 1600 Ges 1500 X = Cl GLv‡b, R = A¨vjKvBj MÖæc Ges Ph = wdbvBj MÖæc 1810cm–1 X = OH 1760cm–1 X = H 1730cm–1 X = CH3 1715cm–1 X = NH2 1715cm–1 X = OPh/OAr 1760cm–1 X = O R 1745cm–1 X = Ph 1795cm–1 C – H + 4[H] Zn.Hg Mvp HCl H2 y O =

CHEMISTRY PLUS •Re imvqb 641 ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES A¨vj‡Kvnj I †db‡ji C–O Ges O–H cÖmviY K¤úv¼t ‡h․M C–O cÖmviY cm–1 O–H cÖmviY cm–1 ‡h․M C–O cÖmviY cm–1 O–H cÖmviY cm–1 1 A¨vj‡Kvnj 1050 3690 3 A¨vj‡Kvnj 1150 3620 2 A¨vj‡Kvnj 1100 3630 ‡dbj 1220 3610 -t Z_¨ KwYKv: (HOT NEWS GALLERY) t- †Kv‡bv •Re †h․‡M WvB‡cvj †gv‡g›U _vK‡j •Re †h․MwU IR mwµq nq| N2, H, Cl2, O2 BZ¨vw` IR mwµq bq| H-e܇bi d‡j OH Gi †kvlY e¨vÛwU wb¤œZi wd«‡Kv‡qw݇Z ¯
vbvšÍwiZ nq| Ae‡jvwnZ iwk¥i kw³gvÎv `ye©j cÖK…wZi weavq †Kv‡bv •Re †h․‡M IR †kvlY n‡j AYyi B‡jKUªbxq ¯
vbvšÍi N‡U bv| wK‡Uv‡b abvZ¥K Av‡ekx cÖfve (+1 effect) †ewk _vKvq >C = O Gi †kvlY e¨v‡Ûi gvb A¨vjwWnvBW A‡cÿv Kg nq| CH3CHO( V = 1750 cm1 ) > CH3COCH3 ( V = 1745 cm1 ) >C = O g~j‡Ki mv‡_ A¨vjKbvBj g~jK ev A¨vivBj g~jK KbRy‡Mkb cÖfve NU‡j †kvlY e¨v‡Ûi gvb n«vm cvq| IR cwim‡i eY©vwji e¨vwß 4000-400 cm1 IR †kvlY GKwU †Kvqv›Uvqb cÖwµqv| †Kv‡bv •Re †h․M IR mwµq n‡Z n‡j †h․MwU †cvjvi I cÖwZmg n‡Z n‡e Ges Gi GKwU ¯
vqx ev A¯
vqx WvB‡cvj †gv‡g›U _vK‡Z n‡e| SAQ: [Short Answer Question] cÖkœ-01 : •Re †h․‡Mi Kvh©Kix g~jKmg~‡ni IR-eY©vwj‡Z wd«Kz¨‡qwÝ KZ? [P.‡ev. 2016] DËi : Middle-IR A‡ji IR-†kvlY eY©vwj Øviv •Re †h․‡Mi Kvh©Kix g~jK kbv³ Kiv nq| G‡ÿ‡Î †kvlY e¨vÛ‡K Zi½-msLv () – ev †iwm‡cÖvKvj †mw›UwgUvi (cm–1 ) GK‡K cÖKvk Kiv nq| •Re †h․‡M H me e܇bi G cÖ‡qvRbxq kw³ †kvl‡Yi my‡hvM wg‡j middle-IR AÂj ev IR-Gi 2.5–25 m Zi½‣`N©¨ cwim‡i (Z_v Zi½ msL¨v, – = 4000 cm–1 – 400 cm–1 Gi g‡a¨)| REAL TEST ANALYSIS OF PREVIOUS YEAR QUESTIONS STEP 01 ANALYSIS OF GENERAL UNIVERSITY QUESTION DU 01. IR eY©vjx‡Z-OH Ges >C=O Kvh©Kix g~jK¸‡jv †Kvb Zi½msL¨v †kvlY K‡i? [DU. 2016-17] A. 3400,1700cm-1 B. 2800,1700cm-1 C. 3400,1400cm-1 D. 2500,1000cm-1 mwVK DËi: A. 3400,1700cm-1 H O e¨vL¨v: IR eY©vjx‡Z – OH, >C=O, - C=O , R-C-R, R-COOH Kvh©Kix g~jK¸‡jv h_vµ‡g 3200-3400cm-1 , 1650-1740 cm-1 , 1740-1720 cm-1 , 1720-1705cm-1 , 2400-3200cm-1 (1710-1680) Zi½ msL¨v †kvlY K‡i| * K‡qKwU wØcigvYyK AYyi IR eY©vjx e¨v‡Ûi Zi½ msL¨v t CO - 2143.3, HF - 3958.4 HCl - 2885.6, HBr- 2559.3 HI - 2230.0 ‡R‡b ivLv fv‡jv: IR active=CO, HF,HCl, NO (KviY G‡`i ¯
vqx WvB†cvj Av‡Q) IR inactive = N2, O2, H2 (KviY G‡`i ¯
vqx WvB†cvj bvB) JnU 01. IR eY©vjx †Z A¨vj‡Kvn‡ji H eÜbhy³ - OH Gi †kvlY e¨vÛ- [JnU-Ka. 16-17] A. 3500-3700 cm-1 B. 1260-1410 cm-1 C. 3200-3400 cm-1 D. 1040-1150 cm-1 mwVK DËi: C. 3200-3400 cm-1 H O | e¨vL¨v: IR eY©vjx‡Z – OH, >C=O, - C=O , R-C-R, R-COOH Kvh©Kix g~jK¸‡jv h_vµ‡g 3200-3400cm-1 , 1650-1740 cm-1 , 1740-1720 cm-1 , 1720-1705cm-1 , 2400-3200cm-1 (1710-1680) Zi½ msL¨v †kvlY K‡i| JU 01. wb‡Pi †Kvb A‡ji IR eY©vjxi mvnv‡h¨ Kve©wbj g~jK kbv³KiY Kiv hvq? [JU-A.2019-20] A. (3200 – 3600) cm–1 B. (1680 – 1800) cm–1 C. (2800 – 3000) cm–1 D. (100 – 14000) cm–1 mwVK DËi: B. (1680 – 1800) cm–1 KU 01. GKwU †g․‡ji †Kvb •ewkó¨‡K ÔAv½yj QvcÕ wnmv‡e aiv nq? [KU. 14-15] A. Atomic spectrum B. Chemical reaction C. Color D. Magnetic resonance mwVK DËi: A. Atomic spectrum IU 01. IR eY©vjx‡Z A¨vj‡Kvn‡ji Rb¨ KZ Zi½ msL¨vq Zxeª I cÖk¯Í e¨vÛ †`Lv hvq? [IU. 2015-16] A. 1100 cm-1 B. 3200-3400 cm-1 C. 1450 cm-1 D. 1000-900 cm-1 mwVK DËi: B. 3200-3400 cm-1 Absorption Dqun.3 v c m 1

642 •Re imvqb CHEMISTRY PLUS ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES STEP 02 ANALYSIS OF SCIENCE & TECHNOLOGY QUESTION JUST 01. ‡KvbwUi mvnv‡h¨ ‣Re‡h․‡M Kve©b WvB A·vB‡Wi Dcw¯
wZ cÖgvY Kiv hvq? [JUST- 12-2013] A. Cu2Cl2 B. AgNO3 C. Cu2S D. MnO4 mwVK DËi: C. Cu2S e¨vL¨v: weï× •Re †h․M I Abv`ª© wKDwcÖK A·vBW CuO Gi cÖvq 1:3 cwigvY wgkªY‡K k³ KvPb‡j DËß Ki‡j (CuO) Øviv •Re †h․‡M Dcw¯
Z C, H RvwiZ nq CO2 I Rjxqev®ú (H2O) Drcbœ K‡i| (•Re †h․M¯
 C, H)+ 3 CuO CO2+H2O+3Cu MBSTU 01. ‡Kvb †h․‡Mi Kvh©Kixg~jK kbv³Ki‡Yi mnR c×wZ †KvbwU? [MBSTU-B1.2017-18, RU. 2007-08, wm.‡ev. 2015] A. UV B. IR C. MS D. MRI mwVK DËi: B. IR e¨vL¨v: ‡h․‡Mi Kvh©Kvix g~jK kbv³ Ki‡Yi mnR c×wZ nj IR †kvlY eY©vwj| 02. wb‡Pi †Kvb AYywU IR eY©vjx m„wó K‡i? [MBSTU-C2.2017-18] A. N2 B. F2 C. O2 D. CO mwVK DËi: D. CO e¨vL¨v: Asymmetric Wvqv Pz¤^K AYy IR eY©vjx m„wó K‡i| 03. GKwU weï× Zij •Re †h․‡M Na †hvM K‡i H2 cvIqv †M‡j †evSv hvq †h․MwU‡Z g~jK we`¨gvb| [MBSTU- 2012-13] A. –NH2 B. –CHO C. -OH D. –CH3 mwVK DËi: C -OH. e¨vL¨v: CH3-CH2-OH + Na CH3-CH2-ONa + 2 1 H2 BSMRSTU 01. ejq cixÿv †KvbwU? [BSMSTU. B. 2016-17] A. mvj‡dU g~j‡Ki cixÿv B. bvB‡UªU g~j‡Ki cixÿv C. †K¬vivBW g~j‡Ki cixÿv D. Kve©‡bU g~j‡Ki cixÿv mwVK DËi: B. bvB‡UªU g~j‡Ki cixÿv e¨vL¨v: bvB‡UªU g~jK kbv³KiY wewµqv | 02. ‡µvgv‡UvMÖvdxi †ÿ‡Î ‡cvjvwiwUi mwVK µg Ñ [BSMSTU-C. 2016-17] A. -NH2 , - CHO < OH < - COOH B. -NH2 < - CHO < COOH < - OH C. - NH2 <-COOH < - OH < - CHO D. -NH2 < -COOH < - OH < - CHO mwVK DËi: D. -NH2 < -COOH < - OH < - CHO e¨vL¨v: CHO < -NH2 < - OH < - COOH (Kwei m¨v‡ii eB) 03. wK‡Uvb MÖæc (C=O) Gi Stretching frequency number KZ? [BSMSTU-H.2016-17, iv.‡ev. 2017] A. 2000 – 2080 cm-1 B. 2700 – 2830 cm-1 C. 1705 – 1720 cm-1 D. 3100 – 3200 cm-1 mwVK DËi: B. 2700-2830 cm-1 STEP 03 ANALYSIS OF ENGINEERING & BUTex QUESTION CUET 01. ‡Kvb Kve©vbvBj †h․‡Mi V (>C = 0) Gi gvb †ekx nq? [CUET. 2015-16] A. B. C. D. mwVK DËi: (C) e¨vL¨v: V (>C = 0) Gi gvb wis AvKv‡ii e¨¯ÍvbycvwZK AvKvi †QvU n‡j V Gi gvb eo nq| STEP 04 ANALYSIS OF MEDICAL & HSC QUESTION DAT 01. ‣Re †h․‡Mi Kvh©Kix g~jK kbv³Ki‡Y †KvbwU e¨eüZ nq? [DAT. 17-18] A. Near-IR B. Middle-IR C. Far-IR D. Distant-IR mwVK DËi: B. Middle-IR 02. ‣Re †h․‡Mi Kvh©Kixg~jK kbv³Ki‡Y eY©vjxwgwZi m‡e©vËg c×wZ †KvbwU? [DAT. 2016-17] A. UV B. IR C. NMR D. MASS mwVK DËi: B. IR e¨vL¨v: ‣Re †h․‡Mi Kvh©Kixg~jK kbv³Ki‡Yi Rb¨ `ywU c×wZ Av‡Q- (1) IR c×wZ (2) g~jK kbv³KiY c×wZ| 03. wb‡Pi ‡KvbwU dvÛv‡g›Uvj eªv‡Ûi mgxKiYA. V = 1 2c K B. v = 1 2m K C. v = 1 2c K B. v = 1 2m K mwVK DËi: A. v = 1 2c K 04. •Re ‡h․M Øviv m„ó ‡kvlY eY©vwj‡K Kx e‡j? A. NMR B. IR-spectrum C. NIR spectrum D. MRI mwVK DËi: B. IR-spectrum PART 15 cwjgvi I cøvw÷wmwU m¤úwK©Z Z_¨vewj Item–01: cÖv_wgK Z_¨: MÖxK kã cwj- eû Ges ‡gim- Ask A_¨v©r cwjgvi A_© eû Ask wewkó AYy| cwjgv‡ii AvbweK fi mvavibZ 10,000 n‡Z K‡qK wgwjqb ch©šÍ n‡Z cv‡i| cwjgvi A‡bK¸‡jv ÿz`ª ÿz`ª ivmvqwbK GKK Øviv MwVZ| G ÿz`ª GKK ¸‡jv‡K g‡bvgvi e‡j| ‡h mKj cwjgvi ‡h․‡M g‡bvgvi AYyi msL¨v A‡bK ‡ewk (mvaviYZ 100 Gi ‡ekx) Zv‡`i‡K D”P cwjgvi e‡j| ‡h mKj ‡h․‡M g‡bvgv‡ii msL¨v 100 Gi Kg Zv‡`i‡K Poligomer e‡j| †¯úkvj cÖ¯‧wZ wmwiR [†`‡ki †e÷ wUPvi‡`i mgš^‡q M„n wkÿ‡Ki weKí GKgvÎ mnvwqKv] ∎ Rvweb‡jR ∎ dvg©vb‡jR ∎ WRITTEN BLOG ∎ mv¤úªwZK †bUIqvK© [mvaviY Ávb 1,2,3] ∎ Avm‡c± nvBjvBUm

CHEMISTRY PLUS •Re imvqb 643 ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES Item–02: cwjgv‡ii †kÖwYwefvM: cwjgvi cÖvK…wZK D`vniY: ivevi †mjy‡jvR ÷vP© †cÖvwUb wbDwK¬K GwmW Drm Abymv‡i wewµqv Abymv‡i ZvcgvÎvi Dci K…wÎg D`vniY: bvBjb cwjw_b †Udjb †Uwiwjb wcwfwm Aa©K…wÎg D`vniY: ‡mjy‡jvR, A¨vwm‡UU, †mjy‡jvR bvB‡UªU, n¨v‡jv‡R‡b‡UW cÖvK…wZK ivevi) †nv‡gvcwjgvi (hyZ ev ms‡hvRb wewµqvq Drcbœ nq) D`v: wcwfwm, cwj÷vwib, †Udjb, cwjw_b, cwj‡cÖvwcb †Kv-cwjgvi (Nbxfeb ev Kb‡Wb‡mkb wewµqvq Drcbœ nq) D`v: e¨v‡KjvBU, cwjG÷vi, bvBjb- 6,6 †gjvWzi _v‡g©vcøvw÷K D`vniY: cwj÷vwib cwjw_b wcwfwm cwj‡cÖvwcb _v‡g©v‡mwUs D`vniY: Am¤ú„³ cwjG÷vi †dbj-digvjwWnvBW †iwRb B‡_vw· †iwRb Item–03:KwZcq hyZ cwjgvi (‡nv‡gvcwjgvi) cwjgvi wewµqvi kZ© cybive„wËK GKK ev g‡bvgvi ‣ewkó¨ e¨envi cwj (Bw_b) (–CH2–CH2–)n O2, 100–200°C 1000–1200atm Bw_wjb CH2=CH2 DËg Zwor AšÍiK, GwmW ÿvi Øviv AvµvšÍ nq bv wewfbœ ai‡bi gM, †evZj, †Uwej K¬_, Mvgjv •Zwi‡Z Ges cvwbi U¨v¼, Wv÷web •Zwi‡Z cwj (‡cÖvwcb) (–CH2–CH2–CH2–)n 120°C, 140atm cÖfveK TiCl3 ‡cÖvwcb (CH2=CH–CH3) me‡P‡q nvjKv cwjgvi cøvw÷K, RvwiZ nIqvi cÖeYZv †ewk Mv‡g©‡›Ui myZv •Zix‡Z, cvBc, †Ljbv, `wo, Kv‡c©U •Zwi‡Z cwj (÷vwib) [C6H5– | CH – | CH2 ]n cwjgviKiY D”P Pvc c×wZ, cÖfveK jyBm GwmW (AlCl3, H2SO4, Fe2O3) 1000atm ÷¨vwib C6H5–CH=CH2 eY©nxb I ¯^”Q, k³, `„p I f½yi Ges cvwb †kvlY ÿgZv LyeB Kg Lvevi cvÎ, Km‡gwU‡Ki †evZj, †Uwjwfkb K¨vwe‡bU, cøvw÷K Kvc, wkï‡`i †Ljbvi wRwbm I c¨v‡KwRs ‡Udjb/ cwj (‡UUªv‡d¬v‡ivBw_b) (–CF2–CF2–)n ‡dbUb weKviK (FeSO4,H2O)2 ‡UUªv ‡d¬v‡ivBw_b (CF2=CF2) we`y¨r I Zvc Acwievnx, LyeB wbw®…q A`vn¨ Ges GwmW I ÿvi c`v‡_©i mv‡_ wµqvnxb ivbœvi d«vBc¨v‡b †KvwUs †`Iqv, •e`y¨wZK hš¿cvwZ‡Z AšÍiKiƒ‡c, Rvnv‡Ri i¾y, fvjf •Zwi‡Z PVC/ cwj (wfbvBj‡K¬vivBW) 150 – 250°C cÖfveK HgCl2 I ï®‥ HCl Bw_wjb †K¬vivBW CH2=CHCl GwU k³ I `„p, Zvc I Av‡jvi Dcw¯
wZ‡Z cwiewZ©Z nq K…wÎg Pvgov, N‡ii †g‡Si Kv‡c©wUs cÖ¯‧wZ, N‡ii Qv` •Zwii wRwbm-cÎ •Zwi, cøvw÷K wmwiÄ, †iBb‡KvU©, MÖv‡gv‡dvb †iKW© •Zwi‡Z cwj AvB‡mvwcÖb (CH2C=CHCH2)n CH3 250-280C 1000 atm TiCl4 AvB‡mvwcÖb ev 2- wg_vBj weDU-1,3- WvBBb nvjKv Aa©¯^”Q, we`y¨r wb‡ivax, bgbxq †L‡jvqvo‡`i RyZvi †mvj, evm-Uªv‡Ki Uvqvi cÖ¯‧wZ, weª‡Ri ivevi c¨vW c¨vivjwWnvBW 3(CH3CHO) Mvp H2SO4, 40-45C A¨vwmUvjwWnvBW CH3CHO - Ny‡gi Ilya •Zwi‡Z Item-04: Nbxfeb ev †Kv-cwjgvit †h wewµqvq `ywU wfbœ Kvh©Kixg~jK ev GKB Kvh©Kixg~jK hy³ g‡bvgvi AYymg~‡ni g‡a¨ wewµqvq ÿz`ª †Kv‡bv AYy AcmvwiZ n‡q Nbxfe‡bi gva¨‡g cwjgvi MVb K‡i Zv‡K Kb‡Wb‡mkb ev †Kv-cwjgvi e‡j| ¸iæZ¡c~Y© Nbxfeb cwjgviKiY mg~ntÑ cwjgvi hv‡`i cwjgvi Z_¨ ev e¨envi e¨v‡KjvBU wg_vb¨vj I †dbj (1:2) Kj‡gi ewW, †dv‡bvMÖvd †iKW©, •e`y¨wZK hš¿cvwZ †cøU I myBP, evwb©k I d¬vBD‡Wi Mvg cÖ¯‧wZ| ‡gjvgvBb BDwiqv ev Kve©vgvBW, cÖfveK TiO2 G·wjsK _v‡g©v‡mwUs cwjgvi| ‡gjvWyi ‡gjvgvBb+wg_vb¨vj ‡gjvgvBb †iwRb hv †gjvWyi Bbmy‡jUi •Zix‡Z, †cøU I gM •Zwi| bvBjb 6:6 ‡n·vwgw_wjb WvBA¨vwgb+A¨vwWwcK GwmW, cÖfveK TiO2, ZvcgvÎv 280C bvBjb Zš‧ I †cvkvK ‣Zix‡Z, †gvUv K¤^j, Kvco, `uv‡Zi eªvk, gvQ aivi Sv‡ji myZv, Bjvw÷K †MwÄ, †gvRv •Zwi, A‡Uv‡gvevBj Uvqvi i¾y Drcv`b| ‡Wµb/ ‡Uwiwjb B‡_b 1,2 WvBAj + †ebwRb 1,4 WvBKve©w·wjK GwmW †mv‡qUvi, †gvRv, mvwUs Kvco, kvwo •Zwi, GQvovI wdj¥ I †iKwW©s †Uc •Zwi‡Z| ‡R‡b ivLv fv‡jv: wg_vb¨vj ev digvjwWnvBW Gi cwjgvi¸‡jv n‡jv- e¨v‡KjvBU I †gjvWzi|

644 •Re imvqb CHEMISTRY PLUS ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES Item-05. cwjgv‡ii ¸iæZ¡c~Y© Z_¨ mg~n: cÖvK…wZK cwjgvi t cwjm¨vKvivBW- ÷vP© ev †mjy‡jvR (D-Møy‡Kv‡Ri cwjgvi) ‡cÖvwUb- - A¨vgvB‡bv Gwm‡Wi cwjgvi wbDwK¬K GwmW- wbDwK¬‡qvUvB‡Wi cwjgvi ÷vP©- ÷v©‡P C1 – C4 MøvB‡KvmvBwWK eÜb we`¨gvb| i) -A¨vgvB‡jvR cÖvq 10-20% Ges GwU cvwb‡Z `ªeYxq| ii) - A¨vgvB‡jvR ev A¨vgvB‡jv‡cKwUb (80-90%) Ges cvwb‡Z A`ªeYxq| ‡mjy‡jvRt †mjy‡jv‡Ri AvYweK fi cvuP jÿ †_‡K 2.4 wgwjqb A_v©r G‡Z 300-3000 - D Møy‡Kv‡Ri AYy we`¨gvb| †mjy‡jvR Øviv Dw™¢` †`‡ni KvVv‡gv I Zš‧ MwVZ nq| ag©t (i) wKDwcÖK nvB‡Wªv A·vBW (ii) HCl `ªexf~Z ZnCl2 `ªeY I (iii) NaOH I CS2 wgkª‡Y †mjy‡jvR `ªexfyZ nq| MøvB‡Kv‡Rbt i‡³ glucose level 60–100 mg/dl Gi †ewk n‡j liver G mwÂZ nq glycogen wnmv‡e| G‡K cÖvwYR ÷vP© e‡j| MøvB‡Kv‡Rb cvwb‡Z `ªeYxq Ges Av‡qvwWb `ªe‡Yi mv‡_ jvj‡P ev`vwg eY© m„wó K‡i| G‡Z 6000 †_‡K 30000 Møy‡KvR AYy _v‡K| ÷vP© I †mjy‡jv‡Ri g‡a¨ cv_©K¨ t ÷vP© †mjy‡jvR ÷vP© -D (C1 – C4 )Møy‡Kv‡Ri cwjgvi I AwZ mn‡R cwicvK‡hvM¨| †mjy‡jvR -D(C1 – C4 )Møy‡Kv‡Ri cwjgvi I cwicvK‡hvM¨ bq| ÷v‡P©i A¨vgvB‡jR Mig cvwb‡Z `ªeYxq| †mjy‡jvR cvwb‡Z A`ªeYxq| I2 `ªe‡Y bxj eY© avib K‡i| †mjy‡jvR I2 `ªe‡Yi mv‡_ eY© •Zwi K‡i bv| 1200-6000 -D Møy‡KvR _v‡K| 300-3000 -D Møy‡KvR _v‡K| ‡cÖvwUb : AmsL¨ ‡ccUvBW ms‡hv‡M ‡cÖvwUb MwVZ nq| cwjgvi mvaviYZ g¨v‡µv AYy| wKš‧ me g¨v‡µv AYy cwjgvi bq| LyeB Kg AvYweK fiwewkó cwjgvi‡K Uvi cwjgvi (Tar Polymer), Kg AvYweK fiwewkó cwjgvi‡K Awj‡Mvgvi (Oligomer), D”P AvYweK fiwewk÷ cwjgvi‡K D”P cwjgvi (High polymer) Ges AwZ D”P AvYweK fiwewkó cwjgvi‡K AvjUªv nvB cwjgvi (Ultra high polymer) ejv n‡q _v‡K| ‡h mKj AYy‡Z (wkK‡j) 50 ev Zvi AwaK g‡bvgvi GKK _v‡K Zv‡K e„n`vKvi AYy bv e‡j cwjgvi ejv nq| e¯‧ weÁv‡b (material science) Ôcøvw÷wmwUÕ ej‡Z evwn¨K ej cÖ‡qv‡Mi Kvi‡Y c`v‡_©i ¯
vqx weK…wZ‡K eySvq| ‡cÖvwU‡bi ÿz`ª GKK n‡jv A¨vwg‡bv GwmW| RyBUvi Avqb: †h AYy ev Avq‡bi `yB ev Z‡ZvwaK Kvh©Kix g~jK Av‡Q Ges hv‡`i GKwUi abvZ¥K PvR© Ges Ab¨ GKwUi FYvZ¥K PvR© i‡q‡Q Ges mvgwMÖKfv‡e PvR© k~b¨ nq Zv‡K RyBUvi Avqb e‡j| cÖv_wgK ch©v‡q G ai‡bi AYy‡K WvB‡cvjvi Avqb ejv n‡Zv| RCHCOH O Rjxq `ªeY RCHCO: .. .. O .. .. H2N: +NH3 -A¨vgvB‡bv GwmW RyBUvi Avqb AvB‡mvB‡jKwUªK c‡q›U(Isoelectric Point): †h pH Gi gv‡b †Kv‡bv †cÖvwUb AYyi c‡ÿ †cÖvUb (H+ ) MÖnY ev Z¨vM Kivi mÿgZv mgvb, Zv‡K H †cÖvwU‡bi AvB‡mvB‡jKwUªK c‡q›U e‡j| †h․M AvB‡mvB‡jKwUªK c‡q›U †h․M AvB‡mvB‡jKwUªK c‡q›U †h․M AvB‡mvB‡jKwUªK c‡q›U Bbmywjb 5.3 wn‡gv‡Møvweb 6.8 †cÖvUvwgb 12.2 wn÷vwWb 7.59 †KBwmb 4.6 Short Ans Question SAQWRITTEN SUGGESTION BAQ Broad Ans Question cÖkœ-01: -MøvB‡KvmvBW eÜb Kx? `yB AYy D Møy‡KvR (PvwµK MVb) n‡Z GK AYy cvwb AcmvwiZ n‡q g‡ëvR myMvi •Zixi ivmvqwbK wewµqvwU wjL| [RU. 2019-20; h.‡ev. 2019; w`.‡ev. 2019; Xv.‡ev. 2017] DËi: -D Møy‡Kv‡Ri A‡bK¸‡jv AYy cici Nbxfeb wewµqvq hy³ n‡q †h eÜb Øviv ÷vP© •Zwi nq †m eÜb‡K -MøvB‡KvmvBW eÜb e‡j| C -D glucose O C H H OH C C OH H C H OH H OH + C CH2OH O C H H OH C C OH H C H OH H OH -D glucose C CH2OH O C H H OH C C OH H C H H OH C CH2OH O C H OH C C OH H C H H OH Moltose sugar OH CH2OH

CHEMISTRY PLUS •Re imvqb 645 ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES cÖkœ-02: bvBjb 66 •Zixi Rb¨ `ywU g‡bvgv‡ii bvg I MvVwbK ms‡KZ wjL| [BUET. 2019-20] DËi: bvg ms‡KZ A¨vwWwcK GwmW HOOC(CH2)4COOH †n·vwgw_wjb WvBA¨vwgb H2N(CH2)6NH2 cÖkœ-03: †Uwiwjb GKwU cwjgvi hv B‡_b-1, 2-Wvq Aj I †ebwRb-1, 4-WvBKv‡e©v·vBwjK GwmW Øviv •Zix nq| wewµqvwU wjL| [BUET. 2019-20] DËi: nHOC O || COH + nHOCH2CH2OH O || 200C H + †ebwRb-1,4-WvBKv‡e©v·vBwjK GwmW B‡_b-1,2-Wvqj C O || COCH2CH2O + (2n1)H2O O || n †Uwiwjb cÖkœ-04: wKfv‡e cvIqv hvq, mgxKiYmn wjL? (iv) Bw_wjb †_‡K cwjw_b- [RUET. 2019-20] DËi: n(CH2= CH2) 1000 atm –––––––– 200C O2 [ cwjw_b CH2CH2]n cÖkœ-05: (C2F4)n cwjgvi †h․MwU S-NwUZ cÖfve‡Ki Dcw¯
wZ‡Z •Zwi Kiv n‡jv| Zv‡Z 0.012% S Av‡Q| cwjgvi AYy‡Z 3wU S cigvYy _vK‡j n-Gi gvb wbY©q Ki| [KUET. 2019-20] DËi: C Gi fi = 12 amu ; F Gi fi = 19 amu ; S Gi fi = 32 amu GLb, 3 32 n(12 2 + 19 4) + 32 3 = 0.012% 96 100n + 96 = 0.012% 100n + 96 = 8 103 n = 7999.04 7999 (Ans.) cÖkœ-06: wbbnvBwWª‡bi jNy Rjxq `ªe‡Yi m‡½ DËß K‡i wb‡¤œi †KvbwU‡K kbv³ Kiv hvq bv: [BUET. 2000-01] (i) Protein (ii) Nucleic acid (iii) -Amino acid (iv) Peptide DËi: Nucleic acid cÖkœ-07: g‡bvgvi Ges cwjgvi G cv_©K¨ wK? [RUET. 2004-05; KUET. 2005-06] DËi: †Kvb wewµqvq GKB †h․‡Mi eûmsL¨K AYy cici hy³ n‡q MwVZ e„nr AYy wewkó †h․M‡K cwjgvi I g~j †h․M‡K g‡bvgvi e‡j| cwjgv‡ii AvYweK fi g‡bvgv‡ii AvYweK f‡ii c~Y© ¸wYZK nq| cÖkœ-08: wb‡¤œv³ c`v_©mg~n ms‡køl‡Yi Rb¨ cÖ‡qvRbxq KuvPvgvj D‡jøL Ki: [RUET. 2012-13, BUTex. 2006-07, 2004-05] (a) bvBjb 6, 6 (b) cwjGóvi (c) digvjwWnvBW †iwRb (d) †n·vwgb ev BD‡iv‡Uvwcb DËi: (a) A¨vwWwcK GwmW [HOOC(CH2)4COOH] Ges †n·vwgw_wjb WvBA¨vgwgb [H2N(CH2)6NH2] (b) •Re wØ-ÿviKxq GwmW I WvBnvBwWªK A¨vj‡Kvnj/WvBAj I WvBAwqK GwmW| (c) wg_vb¨vj I Kve©vgvBW (HNCONH2) Gi cwjgvi| (d) digvwjb (40% HCHO) ev Mvp A¨v‡gvwbqv cÖkœ-09: mwVK DËi †KvbwU? [RUET. 2010-11; CUET. 2003-04, BUTex. 2005-06; Kz.‡ev. 2015] (a) cÖvK…wZK cwjgvi ev ev‡qvcwjgvi nj: (i) Møy‡KvR (ii) óvP© (iii) †cÖvwUb (iv) RNA I DNA (b) `y‡a WvB m¨vKvivBW: (i) my‡µvR (ii) j¨vK‡UvR (iii) gv‡ëvR (iv) †mjy‡jvR (c) g‡bvm¨vKvivBW nj: (i) Møy‡KvR (ii) d«z‡±vR (iii) ivB‡evR (iv) my‡µvR DËi: (a) (ii) óvP© (iii) †cÖvwUb (iv) RNA I DNA; (b) (ii) j¨vK‡UvR; (c) (i) Møy‡KvR (ii) d«z‡±vR, (iii) ivB‡evR| cÖkœ-10: Zzjvi cÖavb Dcv`vb | [BUTex. 2007-08] DËi: †mjy‡jvR| cÖkœ-11: A¨vwg‡bv GwmW¸‡jvi g‡a¨ me‡P‡q †QvU m`‡m¨i bvg wjL| RyuBUvi Avq‡bi ms‡KZ wK? [BUET. 2008-09; BUTex. 2008-09] DËi: me‡P‡q †QvU A¨vwg‡bv A¨vwmW MøvBwmb: (H2NC | H HCOOH) RyuBUvi Avq‡bi ms‡KZ- RCHCO O NH3 cÖkœ-12: cwj-m¨vKvivB‡Wi g‡bvgvi wK? [BUTex. 2008-09] DËi: D-Møy‡KvR| cÖkœ-13: †Udj‡bi ivmvqwbK cwiwPZ wK? [BUTex. 2010-11] DËi: (CF2CF2)n cwj‡UUªvd¬z‡iv Bw_wjb| cÖkœ-14: eskvbyµg Z‡_¨i evnK wK? Gi ivmvqwbK bvg wK? [BUET. 2001-02] DËi: wW.Gb.G (DNA): wW-Aw· ivB‡ev wbDwK¬K GwmW| (ii) A¨vwg‡bv Gwm‡Wi cÖK…wZMZ Kvh©Kix g~jK¸‡jv wK wK? GwU GKwU cwjgv‡ii g‡bvgvi| cwjgviwU wK? DËi: (a) A¨vwg‡bv g~jK (NH2) (b) Kve©w·wjK g~jK (COOH)| cwjgviwU †cÖvwUb| cÖkœ-15: wb‡¤œv³ ivmvqwbK c`v_©mg~‡ni g‡a¨ MV‡bi g~j cv_©K¨ D‡jøL Ki: [BUTex. 2003-04] (K) ÷vP© I †mjy‡jvR (L) Møy‡KvR I d«z‡±vR DËi: (K) ÷vP© nj -D Møy‡KvR cwjgvi wKš‧ †mjy‡jvR nj -D Møy‡KvR cwjgvi| (L) Møy‡Kv‡R CHO g~jK I d«z‡±v‡R CO g~jK we`¨gvb| cÖkœ-16: cøvw÷wmwU Kx? [Xv.‡ev.; Kz.‡ev. 2015; iv.‡ev. 2019; P.‡ev. 2017, 2019] DËi: cøvw÷wmwU kãwU j¨vwUb cøvw÷Kvm (plasticus) Ges wMÖK cøvw÷Km (plastikos) kã †_‡K G‡m‡Q, hvi A_© †gvì ev QuvP| A_©vr †h me c`v_©‡K Quv‡P wbw`©ó Aeqe †`qv hvq Ges wbw`©ó Aeqe AweK…Z ivLvi ÿgZv i‡q‡Q Zv‡`i G ag©‡K cøvw÷wmwU e‡j|

646 •Re imvqb CHEMISTRY PLUS ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES REAL TEST ANALYSIS OF PREVIOUS YEAR QUESTIONS STEP 01 ANALYSIS OF GENERAL UNIVERSITY QUESTION DU 01. †cÖvwUb AYyi g‡a¨ A¨vgvB‡bv Gwm‡Wi AYymg~n †h eÜb Øviv hy³ _v‡K- [DU. 2019-20; MAT.2014-15;CU-F1.2016-17; MBSTU-B. 2019-20, RUET. 2013-14 w`.‡ev. 2016,2017;Xv.‡ev. 2019; 2019; P.‡ev.; wm.‡ev. 2017] A. Glycosidic bond B. Peptide bond C. Hydrogen bond D. Metallic bond mwVK DËi: B. Peptide bond e¨vL¨v: Peptide Bond n‡jv CN O || H | -A¨vgvB‡bv Gwm‡Wi `yB AYyi GKwU A¨vwg‡bv g~j‡Ki H I AciwUi COOH g~j‡Ki OH wg‡i GK AYy H2O wn‡m‡e AcmvwiZ n‡j †h eÜb NC O H MwVZ nq Zv‡K †ccUvBW eÜb e‡j| 02. PVC Gi Dcv`vb †KvbwU? [DU-Ka.2016-17; BU. 2015-16; BSMRSTU. 2014-15; HSTU-B. 2016-17; DU-7Clg. 2019-20] A. CH CH B. CH2 = CHCI C. CICH=CHCI D. CH2 = CHCH2CI mwVK DËi: B. CH2 = CHCI e¨vL¨v: PVC (Polyvinylchloride) Gi Dcv`vb CH2=CHCl (wfbvBj †K¬vivBW) Z‡e GwU Drcbœ nq CH CH Gi mv‡_ HCl Gi wewµqvi gva¨‡g Ges †k‡l cwjgviKiY cÖwµqvq PVC Drcbœ nq| nCH ≡ CH + HCl cwjgviKiY –––––––– n[-CH2- Cl CH -]n PVC 03. AvB‡mvB‡jKwUªK c‡q‡›U A¨vgvB‡bv GwmWmg–~n †Kvbiƒ‡c Ae¯
vb K‡i? [DU-Ka. 2014-15] A. H3 | R N + CHCOOH B. H2N–C | R H –COO– C. H3N + –C | R H –COO– D. H3N–C | R H –COOH mwVK DËi: C. e¨vL¨v: A¤øxq gva¨‡g A¨vgvB‡bv GwmW mg~n abvZ¥K Avqb wnmv‡e ( +NH3– CHR–COOH), ÿvixq gva¨‡g FYvZ¥K Avqb wn‡m‡e (NH2–CHR–COO– ) Ges AvB‡mv-B‡jKwUªK c‡q‡›U A¨vgvB‡bv GwmWmg~n RyBUvi Avqb A_©vr abvZ¥K I FYvZ¥K Dfq Avqb enb K‡i| 04. wb‡gœi †KvbwU †Udj‡bi g‡bvgvi? [DU.2013-2014] A. CH2 = CH2 B. CHCl = CHCl C. C6H5CH = CH2 D. CF2 = CF2 mwVK DËi: D. CF2 = CF2 05. ivbœvi •ZRmc‡Îi bbw÷K AveiY wn‡m‡e wb‡¤œi †Kvb cwjgviwU e¨envi Kiv nq? [DU.2011-2012] A. Orlon B.Teflon C. polyethyne D. PVC mwVK DËi: B.Teflon e¨vL¨v: †Udjbt GwU AZ¨šÍ k³ cøvw÷K| ivbœvi d«vB‡c‡b e¨envi nq| Aijb, Gw·j¨vbt Aijb †_‡K G·vBwjK dvBevi ev myZv •Zwi Kiv nq| 06. Ethylene ‡_‡K polyethylene ‣Zix wK ai‡bi wewµqv? [DU.2010-2011] A. synthesis B. neutralization C. pyrolysis D. polymerization mwVK DËi: D. polymerization 07. wb‡Pi †Kvb †h․MwU cwjgvi MVb Ki‡Z cv‡i? [DU.2001-02, 2004-2005] A. C6H5CH=CH2 B. CH3CH2OH C. CH3COOH D. CH3-O-CH3 mwVK DËi: A. C6H5CH=CH2 e¨vL¨v: cwjgviKiYi wewµqvi kZ©: g‡b ivL‡e, wbgœZi wZbwU Kvi‡Y †Kvb †h․M cwjgviKiY wewµqvq Ask MÖnY Ki‡e- (i) eÜbhy³ †h․M (ii) Am¤ú„³ nvB‡WªvKve©b (A¨vjwKb ev A¨vjKvBb) (iii) Kve©bvBj †h․‡Mi GKvwaK mij AYy| 08. †Kvb kK©ivwU gvbe †`‡n cwicv‡Ki KvR Ges kw³ Drcv`‡b me‡P‡q †ekx e¨eüZ nq? [DU. 2009-2010] A. Fructose B. Glucose C. Ribose D. Galactose mwVK DËi: B. Glucose e¨vL¨v: Møy‡KvR n‡”Q GKwU D‡jøL‡hvM¨ g‡bvm¨vKvivBW| wewfbœ cÖKvi cvKv dj I gay‡Z cÖPzi Møy‡KvR cvIqv hvq| G‡K Av½y‡ii myMvi ejv nq| Møy‡Kv‡Ri e¨envit Møy‡KvR Kv‡e©vnvB‡WªU wecv‡K ¸iæZ¡c~Y© f~wgKv cvjb K‡i| 09. Rx‡ei ‣ewkó¨ esk ci¤úivq enbKvix AYy- [DU.2005-06, JU-D. 2014-15] A. ‡cÖvwUb B. kK©iv C. wWGbG D. wMømvwib mwVK DËi: C. wWGbG e¨vL¨v: DNA n‡”Q Rxe‡bi •ewkó¨ wbqš¿YKvix eskMwZi aviK I evnK| 10. Wvqv‡ewUK myMvi nj- [DU.2005-2006] A. d«‡±vR B. Møy‡KvR C. my‡µvR D. M¨vjvK‡UvR mwVK DËi: B. Møy‡KvR e¨vL¨v: cÖ‡qvRbxq Z_¨ fwZ© †ivMxi c_¨- i) evwj© myMvit MwjZ my‡µvR‡K VvÛv Kivi ci cÖvß KwVb c`v_©| ii) Av½y‡ii wPwbt Møy‡KvR| iii) d«zU myMvit d«zK‡UvR| iv) Bÿz wPwbt my‡µvR| v) BbfvU© myMvit mgcwigvY Møy‡KvR I d«z‡±v‡Ri wgkªY| vi) Wvqv‡ewUK myMvit Møy‡KvR| 11. †cÖvwUb wb‡Pi †KvbwUi cwjgvi? [DU.2005-06, JU-A. 2017-18] A. - amino acid B. -D- glucose C. Deoxyribonucleotide D. Fatty acid mwVK DËi: A. - amino acid e¨vL¨v: A¨vgvB‡bv Gwm‡Wi cwjgvi‡K †cÖvwUb e‡j| mivmwi msÁv †_‡K cÖkœwU Kiv n‡q‡Q| JnU 01. cwj wfbvBj †K¬vivBW (PVC) †KvbwU †_‡K •Zwi Kiv hvq? [JnU-Ka. 2016-17] A. CH2=CH2 B. CHCH C. CH3-CH=CH2 D. CH3-CH3 mwVK DËi: B. CHCH e¨vL¨v: DU. 2016-17 Gi e¨vL¨v ûeû| 02. cÖvY-cÖhyw³i wfwË ‡KvbwU? [JnU 2012-2013] A. DNA B. RNA C. Both of A and B D. None of these mwVK DËi: C. Both of A and B 03. BDwiqvi mv‡_ wg_vb¨vj Nbxfeb wewµqvi gva¨‡g †h c`v_© Drcbœ K‡i Zvi bvg wK? [JnU.2007-2008] A. e¨v‡KjvBU B. ‡WjwWªb C. ‡gjvgvBb D. BDwiqv digvjwWnvBW mwVK DËi: D. BDwiqv digvjwWnvBW e¨vL¨v: BDwiqv I wg_vb¨v‡ji wewµqvq †h cwjA¨vgvBW •Zwi nq Zv‡K BDwiqv digvjwWnvBW †iwRb e‡j| GwU AwZ cÖ‡qvRbxq cøvw÷K| n H2N-CO-NH2+n HCHO(-CH2-NHCONH-)n+nH2O BDwiqv (Kve©vgvBW) BDwiqv digvjwWnvBW †iwRb

CHEMISTRY PLUS •Re imvqb 647 ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES JU 01. †Kvb MøvB‡KvmvBW eÜbwU †mjy‡jvR AYyi g‡a¨ cvIqv hvq? [JU-D, Set-Q. 2019-20 ;KU-A.2017-18] A. B. C. D. mwVK DËi: B. e¨vL¨v: -D Møy‡Kv‡Ri GKwUi C1 Gi m‡½ AciwUi C4 Gi gva¨‡g - MøvB‡KvmvBW eÜb Øviv Ave× n‡q †mjy‡jvR MwVZ nq| 02. AwZwi³ Lv`¨ †_‡K wjfv‡i mwÂZ myMvi †KvbwU? [JU-D: 2019-20, 2016-17; KU. 2010-11] A. Møy‡KvR B. d«~‡±vR C. MøvB‡Kv‡Rb D. my‡µvR mwVK DËi: C. MøvB‡Kv‡Rb e¨vL¨v: cÖvYx†`‡n Lvevi AwZwi³ n‡j, Møy‡KvR wjfv‡i mwÂZ Lvevi wnmv‡e MøvB‡Kv‡Rb iæ‡c Rgv _v‡K| Møy‡KvR Bbmywjb ––––– wjfvi MøvB‡Kv‡Rb| 03. PVA-Gi g‡bvgvi †KvbwU? [JU-A2.2017-18] A. CH2=CH-CH=CH2 B. CH2=CH-C(Cl)=CH2 C. CH3COO-CH=CH2 D. C6H5CH=CH-CH3 mwVK DËi: C. CH3COO-CH=CH2 e¨vL¨v: PVA Gi g‡bvgvi nj wfbvBj A¨vwm‡UU (CH2 = CH – COOCH3) 04. †KvbwU B_vb¨v‡ji cwjgvi? [JU-A4.2017-18, RU. 2008-09] A. c¨vivjwWnvBW B. UªvBA·vj C. e¨v‡KjvBU D. †W‡jvwib mwVK DËi: A. c¨vivjwWnvBW e¨vL¨v: c¨vivjwWnvBW I †gU¨vjwWnvBW nj B_vb¨v‡ji cwjgvi| 05. x(F2C=CF2) wewµqvq Drcbœ nq- [JU-A13.2017-18] A. †gjvgvBb B. †Udjb C. cwjw_b D. wcwfwm mwVK DËi: B. †Udjb e¨vL¨v: x(F2C=CF2) H2O2+FeSO 4 (- F2C - CF2 -)x ‡UUªv †d¬v‡iv Bw_b cwj †UUªv †d¬v‡iv B‡_b ev †Udjb 06. †MøvweDjvi †cÖvwU‡bi MVb Kx ai‡bi? [JU-D9.2017-18] A. 1 B. 2 C. 3 D. ‡KvbwUB bq mwVK DËi: C. 3 e¨vL¨v: Uviwmqvwi †cÖvwUb †K †MøvweDjvi †cÖvwUb ejv nq| AZGe, †MøvweDjvi †cÖvwU‡bi MVb 3| 07. Møy‡Kv‡Ri †nwgGwmUvj MV‡b †Kvb `ywU Kve©‡bi g‡a¨ AšÍtAvYweK eÜb N‡U? [JU-D9.2017-18] A. Cl-C2 B. C1-C3 C. C1-C4 D. Cl-C5 mwVK DËi: D. Cl-C5 e¨vL¨v: 5bs Kve©‡bi –OH g~j‡Ki m‡½ 1 bs Kve©‡bi –CHO MÖæ‡ci g‡a¨ AvšÍt AvbweK wewµqvi d‡j †nwgGwmUvj MVb m„wó nq| 08. my‡µv‡Ri Av`ª©we‡køl‡Y Drcbœ nq- [JU-D: 2014-15] A. 2 AYy Møy‡KvR B. Møy‡KvR I d«y‡±vR C. Møy‡KvR I M¨vj¨vK‡UvR D. 2 AYy M¨vj¨vK‡UvR mwVK DËi: B. Møy‡KvR I d«y‡±vR e¨vL¨v: g‡ëvR = Møy‡KvR + Møy‡KvR; my‡µvR = Møy‡KvR + d«z‡±vR; j¨vK‡UvR = Møy‡KvR + M¨vjv‡±vR 09. KbRy‡MU †cÖvwUb †KvbwU? [JU 2011-2012] A. wn‡gv‡Møvweb B. Bbmywjb C. †KivwUb D. A¨vjeywgb mwVK DËi: A. wn‡gv‡Møvweb 10. †KvbwU ev‡qv g‡bvgvi n‡Z cv‡i? [JU 2011-2012] A. cwjm¨vKvivBW B. †cÖvwUb C. A¨vgvB‡bv GwmW D. wbDwK¬K GwmW mwVK DËi: C. A¨vgvB‡bv GwmW RU 01. †cÖvwU‡bi g‡a¨ A¨vgvB‡bv GwmWmg~n ci¯ci wK eÜb Øviv Ave× _v‡K? [RU-Set-3: 2018-19, JUST. 2017-18] A. MøvB‡KvmvBW eÜb B. nvB‡Wªv‡Rb eÜb C. †gUvwjK eÜb D. †ccUvBW eÜb mwVK DËi: D. †ccUvBW eÜb e¨vL¨v: A¨vgvB‡bv GwmW mg~n †ccUBW (-CONH-) eÜb Øviv Ave× n‡q †cÖvwUb MVb K‡i| 02. gvbe‡`‡ni Rb¨ †KvbwU AZ¨vek¨Kxq A¨vgvB‡bv GwmW? [RU-Set-3: 2018-19] A. MøvBwmb B. Gjvwbb C. †mwib D. f¨vwjb mwVK DËi: D. f¨vwjb 03. ‡Kvb cwjgviwU Nbxfeb cÖwµqvq •Zix Kiv nq? [RU-H3.2017-18] A. PVC B. ‡Udjb C. cwjG÷vi D. cwj÷¨vwib mwVK DËi: C. cwjG÷vi 04. wb‡gœi †KvbwU Øviv †n·vwgb •Zwi nq? [RU-G1.2017-18] A.A¨vwgb B. digvwjb C. Bw_wjb D. digvjwWnvBW mwVK DËi: D. digvjwWnvBW 05. eZy©jvKvi †cÖvwUb n‡jv- [RU-G2.2017-18, DU. 2009-10] A. cÖvBgvix B. †m‡KÛvix C. Uviwmqvix MVb D. †KvbUvB bq mwVK DËi: C. Uviwmqvix MVb e¨vL¨v: Uviwmqvwi MVb wewkó †cÖvwUb‡K †MøvweDjvi ev eZz©jvKvi †cÖvwUb e‡j| 06. MøvB‡Kv‡R‡b Møy‡KvR GKK mg~n †Kvb e܇bi gva¨‡g ci¯c‡ii mv‡_ mshy³ _v‡K? [RU-H.2016-17] A. C1-C4 -MøvB‡KvmvBW eÜb B.C1-C4-MøvB‡KvmvBW eÜb C. C2-C4 - MøvB‡KvmvBW eÜb D.C2-C4 -MøvB‡KvmvBW eÜb mwVK DËi: A. C1-C4 -MøvB‡KvmvBW eÜb e¨vL¨v: In Glycogen glucose are linked together linearly by (1-4) glucosidic bond. [Ref: Wikipedia) 07. me‡P‡q †QvU AvYweK IR‡bi A¨vgvB‡bv Gwm‡Wi bvgÑ [RU-H.2016-17] A. MøvBwmb B. Gjvwbb C. wdbvBj Gjvwbb D. wUª‡Þvd¨vb mwVK DËi: A. MøvBwmb e¨vL¨v: A¨vgvB‡bv GwmW AvYweK I‡Rvb Alanine 89 Da Glycine 75 Da Phenylalanine 165 Da Tryptophan 119 Da 08. wb‡Pi †KvbwU A¨v‡gvwbqvi mv‡_ wewµqv K‡i BDwiqv Drcbœ K‡i? [RU-16-17] A. H2O B. CO2 C.CH6 D. C6H6 mwVK DËi: B. CO2 e¨vL¨v: CO2(S) + 2NH3(g) O = 2 4 NH C ONH 2 2 NH O C NH (BDwiqv) 09. †cÖvwUb‡K Av`ª© we‡køwlZ Kiv n‡j †h GwmW cvIqv hvq Zv- [RU.2015-16] A. A¨vwmwUK GwmW B. diwgK GwmW C. GmKiweK GwmW D. A¨vwg‡bv GwmW mwVK DËi: D. A¨vwg‡bv GwmW e¨vL¨v: Avgiv Rvwb †cÖvwUb n‡jv A¨vgvB‡bv Gwm‡Wi cwjgvi | Avi †h †Kvb cwjgvi‡K Av`©ª we‡kølY Ki‡j cvIqv hvq Zvi g‡bvgvi| 10. ‡cÖvwUb ms‡køl‡Y †gvU A¨vgvB‡bv GwmW _v‡K- [RU. 14-15; JU-D. 17-18] A. 28 wU B. 20 wU C. 10 wU D. 18 wU mwVK DËi: B. 20 wU e¨vL¨v: ‡cÖvwUb ms‡køl‡Y †gvU 20wU A¨vgvB‡bv GwmW _v‡K| Zvi g‡a¨ 10wU Avek¨Kxq Ges 10wU Abvek¨Kxq A¨vgvB‡bv GwmW| mZK©Zv: c~Y©eq¯‥‡`i Rb¨ AZ¨vek¨Kxq A¨vgvB‡bv GwmW 8wU Ges wkï‡`i †ÿ‡Î 10wU|

648 •Re imvqb CHEMISTRY PLUS ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES 11. ‡Kvb A¨vjwWnvBW Ny‡gi Jla wnmv‡e e¨eüZ nq? [RU. 2012-2013] A. †gUvjwWnvBW B. A¨vwmjUvjwWnvBW C. †gUvdigvjwWnvBW D. c¨vivjwWnvBW mwVK DËi: D. c¨vivjwWnvBW 12. R-CH(NH2)-COOH †h․MwU kbv³ Kiv hvq : [RU 2012-2013] (i) ejq cixÿvq (ii) wbbnvBwWªb cixÿvq (iii) evBBD‡iU cixÿvq †KvbwU mwVK? A. i I ii B. i I iii C. ii I iii D. i, ii I iii mwVK DËi: C. ii I iii e¨vL¨v: Møy‡Kv‡Ri kbv³Kib cixÿvi) gwj‡ki cixÿv- jvj ev †e¸bx ejq m„wó nq| ii) gy‡ii cixÿv- cÖ_‡g njy` I c‡i ev`vgx eY© m„wó nq| iii) ‡e‡bwW± cixÿv- †ivMxi cÖmªv‡e Møy‡Kv‡Ri Dcw¯
wZ wba©viY Kiv nq 13. †ebwRb wis aviYKvix A¨vwg‡bv GwmW wb‡Pi †KvbwU? [RU 2009-2010] A. UvB‡ivwmb B. wnmwUwWb C. AviwRwbb D. †cÖvwUb mwVK DËi: A. UvB‡ivwmb e¨vL¨v: UvB‡ivwm‡bi MvVwbK ms‡KZHO CH22 (NH22 )CH COOH 14. wb‡Pi †KvbwU †Udj‡bi ms‡KZ? [RU. 2009-10] A. n(CF2-CF2) B. (-CF2-CF2-)n C. (C2F4)n D. B I C `ywUB mwVK DËi: D. B I C `ywUB 15. PVC Drcbœ Ki‡Z †KvbwU `iKvi? [RU. 2009-10, 08-09) A. wfbvBj A¨vwm‡UU B. A¨vwmwUwjb C. wg‡_b D. Bw_wjb mwVK DËi: B. A¨vwmwUwjb 16. †gjvgvBb Drcv`‡bi KuvPvgvj †KvbwU? [RU.2008-2009] A. CH3COOC2H5 B. CH3COOH C. NH2CONH2 D. CH3CHO mwVK DËi: C. NH2CONH2 17. bvBjb cÖ¯‧wZ‡Z †Kvb GwmW e¨eüZ nq? [RU.2006-07, 2007-08] A. A¨vwmwUK B. A¨vwWwcK C. UviUvwiK D. wóqvwiK mwVK DËi: B. A¨vwWwcK 18. †KvbwU †_‡K cwjw_b •Zix nq? [RU.2007-08, CU. 2009-10] A. AvB‡mvweDUvBwjb B.wfbvBj †K¬vivBW C.Bw_wjb D.wfbvBj A¨vwm‡UU mwVK DËi: C. Bw_wjb 19. ‡Udjb [(C2F4)n] wK? [RU.2007-08] A. K…wÎg myZv B. A¨vjwKb C. g~j¨evb cøvwóK D. g~j¨evb AvKwiK mwVK DËi: C. g~j¨evb cøvwóK CU 01. cwjgvi nj- [CU-F1.2016-17] A. Micromolecule B. Macromolecule C. Sub-micromolecule D. Sub-macromolecule E. Nanomolecule mwVK DËi: B. Macromolecule e¨vL¨v: Polymers always macromolecule 02. cÖvK…wZK cwjgvi n‡jv - [CU-1. 2016-17,IU.2019-20] A. ÷vP© B. wWGbG C. A¨wg‡bv GwmW D. A¨vwg‡bv GwmW E. cvwb mwVK DËi: A. ÷vP© e¨vL¨v: cÖvK…wZK cwjgvi-÷vP©, †mjy‡jvR, MøvB‡Kv‡Rb K…wÎg cwjgvi-bvBjb, wcwfwm, †Udjb| 03. wb‡Pi ‡KvbwU Avewk¨K A¨vgvB‡bv GwmW bq? [CU-F. 2015-16] A. f¨vwjb B. AviwRwbb C. wnmwUwWb D. MøyUvwgb E. wjIwmb mwVK DËi: D. MøyUvwgb e¨vL¨v: `kwU AZ¨vek¨Kxq GgvB‡bv GwmW wb¤œiƒc: jvBwj AvB‡mv gRbyi w_ª wUc wnj Avi wdZv fv‡jvjvB jvBwmb wj wjDwmb AvB‡mv AvB‡mv wjDwmb gRbyi wgw_Iwbb w_ª w_ªIwbb wUc wUªc‡Uvd¨vb wnj wnmwUwWb Avi AviwRwbb wdZv wdbvBj Gjvwbb fv‡jv f¨vwjb 04. wbDwK¬K GwmW wb‡Pi ‡Kvb ‡h․‡Mi cwjgvi? [CU-F. 2015-16] A. A¨vgvB‡bv GwmW B. wbDwK¬IUvBW C. wbDwK¬ImvBW D. – D – Møy‡KvR E. d¨vwU GwmW mwVK DËi: B. wbDwK¬IUvBW e¨vL¨v: wbDwK¬K GwmW + H2O wbDwK¬‡qR g„`y ÿvi wbDwK¬IUvBWm 05. wb‡Pi †Kvb& †h․MwUi cwjgviKi‡Y †Udjb cvIqv hv‡e? [CU. 2014-15] A. wfbvBj †K¬vivBW B. wfbvBj A¨vwm‡UU C. Bw_wjb D. †UUªv‡d¬v‡ivBw_wjb E. Bw_wjwWb †K¬vivBW mwVK DËi: D. †UUªv‡d¬v‡ivBw_wjb 06. ÷v‡P©i ms‡KZ †KvbwU? [CU 2012-2013] A. (C6H12O6)n B. (C6H12O11)n C. (C6H10O5)n D.(C12H22O12)n E. (C6H12O5)n mwVK DËi:C. (C6H10O5)n e¨vL¨v: ÷vP© GKwU cwjm¨vKvivBW| Dw™¢` †Kv‡l mwÂZ Lv`¨ ÷vP© wn‡m‡e _v‡K| Bnvi ms‡KZ (C6H10O5)n| cÖm½µ‡g Av‡iv wKQz Important Kv‡ev©nvB‡Wª‡Ui bvg I ms‡KZ †`Iqv n‡jv: i) MøvB‡Kv‡Rb: (C6H10O5)n ii) j¨vK‡UvR, gj‡UvR, my‡µvR (ev Lvevi wPwb): C12H22O11 iii) d«zK‡UvR, Møy‡KvR, M¨vjvK‡UvR: C6H12O6 iv) ivB‡evR, RvB‡jvR: C5H10O5 v) Bbywjb: (C6H10O5)n vi) ‡W·wUªb: (C6H10O5) vii) i¨vg‡bvR: C6H12O5 07. weRviK wPwbi D`vniY- [CU 2004-2005] A. Møy‡KvR B. my‡µvR C. wMømvwib D. wcKwiK GwmW mwVK DËi: A. Møy‡KvR KU 01. bvBjb 6,6 Gi †¶‡Î 6 I 6 msL¨v `ywU wb‡`©k K‡i- [KU. 2019-20;DU.Technology. 19-20] A. bvB‡Uªv‡R‡bi msL¨v B. cwjgv‡ii msL¨v C. Kve©‡bi msL¨v D. bvBj‡bi msL¨v mwVK DËi: C. Kve©‡bi msL¨v e¨vL¨v: bvBjb-66 NYxfeb cwjgvi 02. [–CO-(CH2)4 - CO –NH(CH2)6 –NH-]n -†h․MwUi bvg wK? [BSMRSTU-C.2017-18] A. bvBjb 6 : 6 B. cwj A¨vgvBW C . bvBjb 4 : 6 D. cwj Kve©‡bU mwVK DËi: A. bvBjb 6 : 6 e¨vL¨v: [– CO – (CH2)4 – CO – NH (CH2)6 – NH]2 GwU bvBjb- 6.6 * †U·UvBj, Kv‡c©U I g‡ëW Ask we‡k‡l e¨eüZ nq| HOT NEWS: bvBjb-6:6 G 6 I 6 msL¨v `ywU Kve©b msL¨v wb‡`©k K‡i? 03. i³‡mªv‡Z Møy‡Kv‡Ri ¯^vfvweK cwigvY KZ? [KU. 2009-2010] A. 10-60 mg/100cm3 B. 60-80 mg/100cm3 C. 60-90 mg/100cm3 D. 60-100 mg/100cm3 mwVK DËi: D. 60-100 mg/100cm3

CHEMISTRY PLUS •Re imvqb 649 ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES e¨vL¨v: i³‡mªv‡Z ¯^vfvweK Møy‡Kv‡Ri cwigvY 60-100 mg/100cm3 | GB cwigv‡Yi †_‡K †ekx n‡j m„ó Ae¯
v‡K ejv nq nvBcviMøvB‡mwgqv| Avi GB cwigvY †_‡K Kg n‡j m„ó Ae¯
v‡K ejv nq nvB‡cvMøvB‡mwgqv| `xN© w`‡bi nvBcviMøvB‡mwgqv‡K Avgiv mvaviYZ ÔWvqv‡ewUKÕ bv‡g AvL¨vwqZ K‡i _vwK| IU 01. †MøvweDjvi †cÖvwUb bq- [IU. 2019-20] A. Bbmywjb B. wn‡gv‡Møvweb C. gv‡qv‡Møvweb D. GbRvBg mwVK DËi: A. Bbmywjb e¨vL¨v: ‡MøvweDjvi ev eZz©jvKvi †cÖvwU‡b Uviwkqvwi eÜb _v‡K| †hgb- wW‡gi mv`v Ask A¨vjeywgb, i‡³i wn‡gv‡Møvweb, Aw¯
i gv‡qv‡Møvweb, `y‡ai †Kwmb| 02. †Wjwib- (i) digvjwWnvB‡Wi GKwU cwjgvi (ii) BDwiqv I digvjwWnvB‡Wi GKwU cwjgvi (iii) cøvwóK wnmv‡e KvV I avZzi weKí wnmv‡e e¨eüZ nq| mwVK DËiwU n‡e- [IU-D. 2016-17] A. i I ii B. ii C. i I iii D. i,ii, iii mwVK DËi: C. i I iii e¨vL¨v: wg_vb¨v‡ji Rjxq `ªeY‡K AwZ wbgœ Pv‡c ev®úxf~Z Ki‡j c¨vivdigvjwWnvBW bvgK cwj (wg_vb¨vj) (CH2O)n MwVZ nq| G cwjgvi evRv‡i †Wjwib bv‡g cwiwPZ hv k³ cøvwóK wn‡m‡e KvV I avZzi weKíiæ‡c e¨eüZ nq| 03. †k¦Zmvi RvZxq Lv`¨ g~jZ- [IU-D. 2016-17] A. M¨vjvK‡Uv‡Ri cwjgvi B. -D-(+) Møy‡Kv‡Ri cwjgvi C. -D-(+) Møy‡Kv‡Ri cwjgvi D. - A¨vwg‡bv Gwm‡Wi cwjgvi mwVK DËi: B. -D-(+) Møy‡Kv‡Ri cwjgvi e¨vL¨v: †k¦Zmvi ev ÷vP© n‡jv -D-(+) Møy‡Kv‡Ri cwjgvi 04. -D Møy‡Kv‡Ri cwjgvi n‡jv- [IU. 2014-15] A. †cÖvwUb B. ÷vP© C. †mjy‡jvR D. †KvbwUB bv mwVK DËi: C. †mjy‡jvR e¨vL¨v: –D Møy‡Kv‡R GK‡Ki GKwU C1 Gi m‡½ AciwUi C4 Gi gva¨‡g MøvB‡KvmvBW eÜb Øviv Ave× n‡q †mjy‡jv‡Ri mij wkKj MVb K‡i| CoU 01. Bbmywj‡bi A¨vgvB‡bv GwmW KqwU †ccUvBW eÜb Øviv Ave× _v‡K? [CoU–A. 2019-20] A. 50 wU B. 51 wU C. 17 wU D. 18 wU mwVK DËi: B. 51 wU BU 01. wb‡Pi †Kvb&wU cwjgvi bq? [BU. 2012-2013] A. †mjy‡jvR B. Møy‡KvR C. cwjw_b D. †Ud‡jvb mwVK DËi: B. Møy‡KvR STEP 02 ANALYSIS OF SCIENCE & TECHNOLOGY QUESTION SUST 01. wb‡Pi †Kvb †h․‡M MøvB‡KvmvBW eÜb †bB? [SUST. 2014-15] A. g‡ëvR B. my‡µvR C. j¨v‡±vR D. d«z‡±vR E. †mjy‡jvR mwVK DËi: D. d«z‡±vR e¨vL¨v: d«z‡±vR g‡bvm¨vKvivBW| ZvB Gi g‡a¨ †Kvb MøvB‡KvmvBW eÜb †bB| 02. †Udj‡bi g‡bvgvi wK? [SUST 2009-10; KUET. 2016-17] A. ÷vwib B. †UUªv‡d¬v‡iv Bw_wjb C. wg_vBj 2- wg_vBj cÖwc‡bv‡qU D. †cÖvwcb bvBUªvBj| mwVK DËi: B. †UUªv‡d¬v‡iv Bw_wjb 03. ‡gjvgvBb •Zwi‡Z wb‡Pi †Kvb KuvPvgvjwU e¨envi Kiv nq? [SUST.2008-2009; BSMRSTU-H. 2019-20; BSMRSTU-B.2017-18] A. Gwm‡Uvb B. ‡K¬v‡ivdig C. BDwiqv D. cÖvBgvwi A¨vwgb mwVK DËi: C. BDwiqv e¨vL¨v: TiO2 cÖfve‡Ki Dcw¯
wZ‡Z BDwiqv ev Kve©vgvBW‡K DËß K‡i †gjvgvBb cÖ¯‧Z Kiv nq| C = O NH2 NH2 TiO2 N N N NH2 NH2 NH2 + 3CO2 + 6NH3 †gjvgvBb cøvw÷K nj GKwU cwj-A¨vgvBW _v‡g©v‡mwUs-cwjgvi| 04. Ò†UdjbÓ Gi ivmvqwbK bvg Kx? [SUST 07-08, RU 07-08, JU-D. 14-15] A. cwj †UUªv †d¬v‡iv Bw_b B. ‡K¬v‡iv †d¬v‡iv B‡_b C. UªvB †K¬v‡iv wdbj D. WvB †K¬v‡iv wg‡_b mwVK DËi: A. cwj †UUªv †d¬v‡iv Bw_b JUST 01. `uv‡Zi eªvk •Zwi‡Z †KvbwU e¨eüZ nq?[JUST-C: 2019-20; BUTex. 2014-15] A. nylon 6,6 B. nylon-6 C. synthesized silk D. nylon-11 mwVK DËi: A. nylon 6,6 02. ‡KvbwU mvjdvi hy³ A¨vgvB‡bv GwmW? [JUST.C.2017-18] A. wnw÷wWb B. wmw÷b C. wmwib D. jvBwmb mwVK DËi: B. wmw÷b e¨vL¨v: wmw÷b, wm‡÷Bb I wgw_Iwbb nj mvjdvi hy³ A¨vgvB‡bv GwmW| 03. †Kvb A¨vjwWnvBW Ny‡gi Jla wnmv‡e e¨envi Kiv nq? [JUST-B. 2016-17] A. †gUvjwWnvBW B. A¨vwmUvjwWnvBW C. †mUvdigvjwWnvBW D. c¨vivjwWnvBW mwVK DËi: D. c¨vivjwWnvBW e¨vL¨v: Ny‡gi Jl‡ai Dcv`vb c¨vivjwWnvBW| 04. †ivMxi cÖmªv‡e Møy‡Kv‡Ri Dcw¯
wZ wba©viY Kiv nq †Kvb cixÿvi mvnv‡h¨? [JUST. 2015-16] A. †dnwjs `ªeY cixÿv B. U‡jb weKviK cixÿv C. †e‡bwW± cixÿv D. gwj‡ki cixÿv mwVK DËi: C. †e‡bwW± cixÿv 05. †Kvb cwjgviwU cÖvK…wZKfv‡e •Zwi nq? [JUST. 2015-16, MBSTU. 2013-14] A. ÷vP© I bvBjb B. ÷vP© I †mjy‡jvR C. †cÖvwUb I bvBjb D. †cÖvwUb I cøvwóK mwVK DËi: B. ÷vP© I †mjy‡jvR e¨vL¨v: ÷vP© †Kvb GKK cwjgvi bq| ÷vP© mij wkKj cwj Møy‡KvR A¨vgvB‡jvR, kvLv wkKj cwj Møy‡KvR A¨vgvB‡jv c¨vKwUb wb‡q MwVZ| †mjy‡jvR GKwU mij wkKj cwj Møy‡KvR| 06. G‡mbwmqvj A¨vgvB‡bv GwmW †KvbwU? [JUST. 2015-16] A. MøvBwmb B. wdbvBj Gjvwbb C. Gjvwbb D. †cÖvwjb mwVK DËi: B. wdbvBj Gjvwbb MBSTU 01. wb‡Pi †KvbwU RyuBUvi Avqb •Zix K‡i? [MBSTU-C. 2019-20] A. O2N CO2H B. H2N CO2H C. Br CO2H D. H2N Br mwVK DËi: B. 02. -MøvB‡KvmvBwWK eÜb Dcw¯
Z _v‡K- [MBSTU-C,Set-2:2018-19] A. ÷v‡P© B. ‡cÖvwU‡b C. wMømvwi‡b D. ‡mjy‡jv‡R mwVK DËi: D. ‡mjy‡jv‡R e¨vL¨v: †mjy‡jv‡Ri MVb mij wkKj, G‡Z cÖvq 3000 -D Møy‡KvR AYy - MøvB‡KvmvBW e܇b Ave× _v‡K|

650 •Re imvqb CHEMISTRY PLUS ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES C=C+O3 C O C O O 03. Møy‡KvR wK ai‡Yi Kv‡e©vnvB‡WªU? [MBSTU-A1.2017-18] A. WvBm¨vKvivBW B. cwjm¨vKvivBW C. g‡bvm¨vKvivBW D. UªvBm¨vKvivBW mwVK DËi: C. g‡bvm¨vKvivBW e¨vL¨v: ivB‡evR, Møy‡KvR, d«z‡±vR, M¨vjv‡±vR BZ¨vw` g‡bvm¨vKvivBW| 04. ÷vP© Kvi cwjgvi? [MBSTU-B1.2017-18] A. wbDwK¬ImvBW B. Møy‡KvR C. d¨vwU GwmW D. Bw_wjb mwVK DËi: B. Møy‡KvR e¨vL¨v: ÷vP© Gi g‡bvgvi nj - D- Møy‡KvR| BSMRSTU 01. †Kvjv‡Rb GK ai‡bi- [BSMRSTU-C.2017-18] A. Avwgl B. kK©iv C. Pwe© D. LwbR c`v_© mwVK DËi: A. Avwgl 02. Kw¤úDUvi wW¯‥ •Zix‡Z e¨eüZ nq †Kvb cwjgvi? [BSMSTU.Ka. 16-17] A. cwjBw_wjb B. cwj÷vwib C.cwjwfbvBj A¨vwm‡UU D. cwjwfbvBj †K¬vivBW mwVK DËi: D. cwjwfbvBj †K¬vivBW e¨vL¨v: cwjwfbvBj A¨vwm‡UU: MÖv‡gv‡dvb †iKW© cÖ¯‧wZ‡Z I Bgvjkb †cB›U cÖ¯‧wZ‡Z e¨eüZ nq| cwjwfbvBj †K¬vivBW: †Ljbv mvgMªx, cvwbi cvBc, K…wÎg wfbvBj †K¬vivBW, M„n wbg©v‡bi Kv‡R, •e`y¨wZK K…wÎg Pvgov I †iKW© •Zwi‡Z e¨eüZ nq| 03. cwjwfbvBj †K¬vivBW (PVC) cÖ¯‧wZ‡Z cÖ‡qvRbÑ [BSMSTU-H.2016-17] A.A¨vwmwUwjb B. HCl C. HgCl2 D. meKqwU mwVK DËi: D. meKqwU PUST 01. ‡h kK©iv †dnwjs `ªeY I U‡jb weKviK‡K weRvwiZ Ki‡Z cv‡i bv- [PUST-B.2017-18] A. Sucrose B. Glucose C. Fructose D. Maltose mwVK DËi: A. Sucrose e¨vL¨v: my‡µvR •Zwii mgq `ywU g‡bvm¨vKvivBW Gi A¨vjwWnvBW ev wK‡Uvb e‡M©i Aw¯ÍZ¡ bó n‡q hvIqvq Gi weRviY ÿgZv jyß nq| HSTU 01. †MøvweDjvi †cÖvwUb Gi MVb wK ai‡bi? [HSTU-D.2017-18, P.‡ev. 2016] A. cÖvBgvix B. †m‡KÛvix C. Uviwmqvix D. mij mwVK DËi: C. Uviwmqvix e¨vL¨v: Uviwmqvwi MVbwewkó †cÖvwUb‡K †MøvweDjvi ev eZz©jvKvi †cÖvwUb e‡j| 02. PVC ev (cwj wfbvBj †K¬vivBW) Gi mwVK g‡bvgvi †KvbwU? [HSTU-B.2016-17, BSMRSTU. 2014-15] A. CH2 = CH2 B. CH2 = CHCl C. CH2 = CHF D. CH2 = CH.C6H5 mwVK DËi: B. CH2 = CHCl NSTU 01. †Kvb wewµqvi gva¨‡g MøvB‡KvmvBwWK eÜb •Zwi nq? [NSTU-A. 2019-20] A. hyZ wewµqv B. cÖwZ¯
vcb wewµqv C. we‡qvRb wewµqv D. Nbxfeb wewµqv mwVK DËi: D. Nbxfeb wewµqv STEP 03 ANALYSIS OF ENGINEERING & BUTex QUESTION BUET 01. cÖvK…wZK ivev‡i I‡Rv‡bi ms¯ú‡k© ÿwZ mvwaZ nq, KviY ivev‡i Av‡QÑ [BUET: 2013-2014] A. C–C bond B. C C bond C. C C bond D. C O bond mwVK DËi: B. C C bond e¨vL¨v: ‡Kvb wØeÜb ev wÎeÜbhy³ †h․M I‡Rv‡bi ms¯ú‡k© G‡j I‡RvbvBW ‡h․M MVb K‡i| Avi ivevi GKwU wØeÜbhy³ †h․M| Gfv‡e I‡RvbvBW MVb nq d‡j ivevi ÿqcÖvß nq| 02. wb‡Pi †Kvb †h․MwU †_‡K cwjgviKiY wewµqv KiY m¤¢e? [BUET: 12-13] A. C6H5OH B. C6H5NH2 C. C6H5CH2=CH2 D. C6H5CH3 mwVK DËi: C. C6H5CH2=CH2 03. L Møy‡Kv‡R OH g~jK evg cv‡k _v‡K- [BUET:2012-13] A. 1, 2 Kve©‡b B. 2,5 Kve©‡b C. 3, 4 Kve©‡b D. 1,6 Kve©‡b mwVK DËi: C. 3, 4 Kve©‡b 04. DNA Gi g‡bvgvi nj- [BUET: 2012-2013] A. wbDwK¬IUvBW B. wbDwK¬ImvBW C. wbDwK¬K GwmW D. ‡KvbwUB bq mwVK DËi: A. wbDwK¬IUvBW 05. cÖvK…wZK ivevi GKwU cwjgvi, Gi g‡bvgvi n‡”Q? [BUET: 2007-2008] A. ‡cÖvcvBwjb B. Bw_wjb C. AvB‡mvwcÖb D. ÷vBwib mwVK DËi: C. AvB‡mvwcÖb RUET 01. Bbmywjb GKwU Ñ [RUET. 2013-14, SUST. 2009-10] A. Amino acid B. Protein C. Glucose D. Nucleic acid E. None mwVK DËi: B. Protein e¨vL¨v: Bbmywjb †cÖvwUb RvZxq c`v_©| hv i‡³ Møy‡Kv‡Ri cwigvY wbqš¿Y K‡i| CUET 01. cwjBw_wjb †Uwi_¨v‡jU ‣Zix‡Z `yB g‡bvgv‡ii GKwU n‡”QÑ [CUET. 15-16] A. Bw_wjb B. Bw_wjb †U‡id_¨v‡jU C. Bw_wjb WvB A¨vwgb D.A¨vwUwjwjb E. Bw_wjb MøvBKj mwVK DËi: E. Bw_wjb MøvBKj e¨vL¨v: cwjBw_wjb †Uwi_¨v‡jU Gi Av‡iK bvg n‡”Q †Uwiwjb ev †Wµb| GB †Uwiwj‡bi `ywU g‡bvgvi n‡”QÑ (i) Bw_wjb MøvBKj (HO–CH2–CH2–OH) (ii) †Uwi_¨vwjK GwmW ( ) A_ev WvB wg_vBj †Uwi_¨v‡jU ( ) BUTex 01. ‡KvbwU cwjgvi MVb K‡i? [BUTex-2016-17] A. C2H4 B. C6H12O6 C. H-CHO D. All mwVK DËi: D. All e¨vL¨v: ‡ebwRb e¨wZZ wØ Ges wÎ eÜb hy³ †h․M cwjgvi MVb K‡i| 02. ‡cÖvwUb‡K Av`ª© we‡kølY Ki‡j wK Drcbœ nq? [BUTex-2016-17, RU. 2009-10] A.wbDwK¬W GwmW B. ‡ccUvBW C. A¨vwg‡bv GwmW D. wjwcW mwVK DËi: C. A¨vwg‡bv GwmW e¨vL¨v: cwjm¨vKvivBW- ÷vP© ev †mjy‡jvR (D-Møy‡Kv‡Ri cwjgvi) ‡cÖvwUb- - A¨vgvB‡bv Gwm‡Wi cwjgvi wbDwK¬K GwmW- wbDwK¬‡qvUvB‡Wi cwjgvi 03. ‡mjy‡jv‡R †Kvb ai‡bi eÜb we`¨gvb? [BUTex. 2014-15, DAT. 2016-17, JU. 2009-10; HSTU-B. 2017-18] A. ‡ccUvBW eÜb B. α-MøvB‡KvmvBwWK eÜb C. β- MøvB‡KvmvBwWK eÜb D. H-eÜb mwVK DËi: C. β- MøvB‡KvmvBwWK eÜb HOOC COOH H3COOC COOCH3

CHEMISTRY PLUS •Re imvqb 651 ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES 04. wb‡Pi †KvbwU ev‡qvcwjgvi? [BUTex. 2014-15; MAT. 2003-04] A. PVC B. Teflon C. UPVC D. Starch mwVK DËi: D. Starch e¨vL¨v: ÷vP© e¨ZxZ evwK me wmb‡_wUK cwjgvi| 05. A¨vwmwUwj‡bi cwjgviKiY wK †`q? [BUTex 2012-2013; KU. 2009-10] A. UjyBb B. ÷vBwib C. †ebwRb D. evB wdbvBj mwVK DËi: C. †ebwRb e¨vL¨v: CH CH Fe 400C 06. digvjwWnvBW †db‡ji mv‡_ Drcbœ K‡i- [BUTex.2011-2012; MAT. 2001-02; RU.2006-2007] A. e¨v‡KjvBU B. A¨vUvKvgvBU C. ‡miymvBU D. M¨v‡jbv mwVK DËi: A. e¨v‡KjvBU e¨vL¨v: nH-CHO+nC6H5OH OH e¨v‡KjvBU STEP 04 ANALYSIS OF MEDICAL & HSC QUESTION MAT 01. Møy‡KvR m¤^‡Ü mZ¨ bq †KvbwU? [MAT- 2018-19] A. GwU wiwWDwms myMvi B. G‡K Av‡Li wPwb ejv nq C. MøvB‡Kv‡Rb wnmv‡e mwÂZ _v‡K D. wfUvwgb wm •Zwi‡Z cÖ‡qvRb nq bv mwVK DËi: D. wfUvwgb wm •Zwi‡Z cÖ‡qvRb nq bv e¨vL¨v: Møy‡KvR‡K †MÖBc myMvi ev Av½y‡ii wPwb ejv nq| Vit-C •Zwi‡Z Møy‡KvR cÖ‡qvRb nq| 02. bvovwb wnmv‡e Møvm i‡Wi weKí wb‡Pi †KvbwU? [MAT.2018-19] A. ivevi iW B. †Udjb iW C. wmivwgK iW D. cvwjwfbvBj iW mwVK DËi: B. †Udjb iW e¨vL¨v: †Udbj AZ¨šÍ k³ Zvc I we`y¨r Acwievnx d‡j bvovwb Kv‡R e¨eüZ nq| 03. ivbœvi d«vBc¨v‡b †KvbwUi †KvwUs †`qv nq? [MAT.2016-17] A. cwjw_b B. cøvw÷K C. †Udjb D. cwj÷¨vwib mwVK DËi: C. †Udjb 04. ivbœvi •ZRmc‡Î bbw÷K AveiY wn‡m‡e wb‡Pi †Kvb cwjgviwU e¨eüZ nq? [MAT.2016-17,CU-Ka.2016-17, DU. 2011-12] A. PVC B. cwjGóvi C. ‡WµY D. ‡Udjb E. ‡gjvwgb mwVK DËi: D. ‡Udjb e¨vL¨v: PVC Gi e¨envi : K…wÎg Pvgov •Zwi‡Z, N‡ii †g‡Si Kv‡c©wUs cÖ¯‧wZ cøvw÷K wmwiÄ, †iBb‡KvU© BZ¨vw`| †Udjb Gi e¨envi : ivbœvi c¨vb Gi Dci †Udjb Gi bb-w÷wKs AveiYx ev †KvwUs †`qv nq| 05. cwjm¨vKvivBW †KvbwU? [MAT. 2015-16] A. d«y‡±vR B. my‡µvR C. M¨vjv‡±vR D. †mjy‡jvR mwVK DËi: D. †mjy‡jvR e¨vL¨v: g‡bv m¨vKvivBW RvB‡jvR, ivB‡evR, Møy‡KvR, dªy‡±vR, M¨vjv‡±vR BZ¨vw`| WvBm¨vKvivBW my‡µvR (Møy‡KvR+dªy‡±vR), g‡ëvR (Møy‡KvR+ Møy‡KvR), j¨v‡±vR (Møy‡KvR + M¨vjv‡±vR) BZ¨vw`| cwjm¨vKvivBW ÷vP©, †mjy‡jvR, MøvB‡Kv‡Rb BZ¨vw`| 06. AwZwi³ Lv`¨ †_‡K mwÂZ myMvi nj- [MAT. 2013-14] A. Møy‡KvR B. d«y‡±vR C. MøvB‡Kv‡Rb D. my‡µvR mwVK DËi: C. MøvB‡Kv‡Rb e¨vL¨v: i³‡¯ªv‡Z Møy‡Kv‡Ri cwigvY †ewk n‡j Zv MøvB‡Kv‡Rb iƒ‡c Rgv nq| 07. Aijb, A¨v‡µvwjb Gi g‡bvgvi wb‡gœi †KvbwU? [MAT. 2009–2010] A. ‡cÖvwcwjb B. ‡cªvwcb-bvBUªvBj C. ‡Udjb D. cwjwfbvBj A¨vwm‡UU mwVK DËi: B. ‡cªvwcb-bvBUªvBj e¨vL¨v: Aijb ev A¨vwµjv‡bi g‡bvgvi n‡jv- †cÖvwcb-bvBUªvBj| CNCH )n 2 CHCN ( CH 2 nCH cwjgviKiY 08. Bw_wjb †_‡K hyZ cwjgviKiY cÖwµqvq †Udjb cÖ¯‧ªZ Kivi mgq wb‡gœi †Kvb cÖfveK e¨envi Kiv nq? [MAT 2009-2010] A. Fe2O3 B. Cr2O3 C. AlCl3 D. FeSO4.H2O2 mwVK DËi: D. FeSO4.H2O2 e¨vL¨v: n(CF2=CF2) FeSO 4 .H2O2 (-CF2-CF2)n 09. †Uwiwjb Drcv`‡bi Rb¨ WvBwg_vBj †Uwi_¨v‡jU Gi mv‡_ wb‡¤œi †KvbwU cÖ‡qvRb nh? [MAT. 2009-10] A. †cÖvwcwjb MøvBKj B. Bw_wjb A·vBW C. Bw_wjb nvB‡Wªv·vBW D. Bw_wjb MøvBKj mwVK DËi: D. Bw_wjb MøvBKj 10. bvBjb 6 : 6 Drcv`‡bi mgq wb‡gœi †KvbwU cÖ‡qvRb nq? [MAT.09-10] A. A¨vwg‡bv Db-‡W‡Kv‡bvwqK GwmWB. mvB‡K¬v †n·vbj C. A¨vwWwcK GwmW D. ‡mivwmK GwmW mwVK DËi: C. A¨vwWwcK GwmW e¨vL¨v: bvBjb 6:6 Drcv`‡b A¨vwWwcK GwmW I ‡n·vwgw_wjb WvBA¨vwgb e¨eüZ nq| 11. †Kvb e¯‧wU eûw`b †iv‡` ev cvwb‡Z _vK‡i bó nq bv? [MAT. 2005-06] A. cøvw÷K B. KvV C. †jvnv D. KuvP mwVK DËi: A. cøvw÷K 12. ‡hwU‡K kbv³Ki‡Yi Rb¨ wbbnvBwWªb e¨envi Kiv †h‡Z cv‡i? [MAT 2001-2002] A. A¨vj‡Kvnj B. bvBUªvBj C. WvB †ccUvBW D. kvLvwqZ nvB‡WªvKve©b mwVK DËi: C. WvB †ccUvBW e¨vL¨v: ‡cÖvwUb kbv³Ki‡Yi `ywU cixÿv n‡”Q - wbbnv&BwWªb cixÿv I evBBD‡iU cixÿv ‡cÖvwU‡b WvB †ccUvBW eÛ _v‡K| 13. †h cwjgvi MV‡bi gva¨‡g diwgKv Drcbœ nq- [MAT. 2000-01] A. †dbj-wg_vb¨vj cwjgvi B. BDwiqv wg_vb¨vj cwjgvi C. wg_vb¨v‡ji cwjgvi D. B_vb¨v‡ji cwjgvi mwVK DËi: B. BDwiqv wg_vb¨vj cwjgvi 14. ‡h cwjgvi MV‡bi gva¨‡g diwgKv Drcbœ nq? [MAT.2000-2001) A. ‡dbj-wg_vb¨vj cwjgvi B. BDwiqv wg_vb¨vj cwjgvi C. wg_vb¨v‡ji cwjgvi D. B_vb¨v‡ji cwjgvi mwVK DËi : B. BDwiqv wg_vb¨vj cwjgvi DAT 01. Bb‡RKkb wmwiÄ •Zwi‡Z wb‡Pi †KvbwU e¨eüZ nq? [DAT. 2018-19] A. †Udjb B. cwjó¨vwib C. cwjwfbvBj †K¬vivBW D. †Uwiwjb mwVK DËi: C. cwjwfbvBj †K¬vivBW 02. cvi‡cø·, †cøw·Møvm-Gi g‡bvgvi wb‡¤œi †KvbwU? [DAT. 2009-10] A. wfbvBj A¨vwm‡UU B. 2-wg_vBj †cÖvcv‡bv‡qU C. cwj÷¨vwib D. B_vBj †ebwRb mwVK DËi: B. 2-wg_vBj †cÖvcv‡bv‡qU Tex.Eng.Clg. 01. Which the frequency of keton (carbonyl) group? [Tex.Eng.Clg. 2019-20] A. 1050–1300 cm–1 B. 3200 – 3400 cm–1 C. 600 – 1500 cm–1 D. 2500 – 3000 cm–1 mwVK DËi: †bB| e¨vL¨v: The absorption wave number of ketone (–CO–) group is 1725–1705cm–1

652 •Re imvqb CHEMISTRY PLUS ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES CH2OH KMnO4 COOH mKj cvV¨eB‡qi cÖkœ NCTB QUESTIONS ANALYSIS e¨vL¨vmn mgvavb 01. wb‡Pi †h․M¸‡jv‡Z Kve©b-Kve©b eÜb •`‡N©¨i e„w×i µg †KvbwU mwVK? [e.‡ev. 2017] [Ref: nvRvix] C2H4 (X), C2H2 (Y), C2H6 (Z) A. X < Y < Z B. Y < Z < X C. X < Z < Y D. Y < X < Z Ans B Why GKK e܇bi Zzjbvq wØ-e܇bi •`N©¨ †QvU Zvi Zzjbvq wÎe܇b Kve©b Kve©b •`N©¨, AviI †QvU nq, X GKK eÜb ; Y wÎ-eÜb ; Z wØ-eÜb| Zvn‡j, Y < Z < X 02. n¨v‡jv‡R‡bv A¨vj‡Kb (R – X) G cÖwZ¯
vcb wewµqvi ‡K․kj ev ‡gKvwbRg n‡jv- [Ref: nvRvix] A. wbDwK¬IwdwjK B. B‡jK‡UªvwdwjK C. RviY-weRviY D. wd«-‡iwWK¨vj Ans A Why n¨v‡jv‡R‡bv A¨vj‡K‡bi AvswkK abvZ¥K PvR©hy³ Kve©b‡K †K›`ªvKl©x weKviK ev wbDwK¬IdvBj AvµgY K‡i| d‡j n¨v‡jv‡R‡bv A¨vj‡K‡bi cÖwZ¯
vcb wewµqv wbDwK¬IwdwjK cÖwZ¯
vcb wewµqv| 03. wb‡gœv³ avZe Kvev©BW †_‡K Av`ª© we‡køl‡Y B_vBb cÖ¯‧Z Kiv hvqÑ [Ref: nvRvix] i. Na2C2 ii. Al4C3 iii. CaC2 wb‡Pi ‡KvbwU mwVK? A. i I ii B. ii I iii C. i I iii D. i, ii I iii Ans C 04. g‡bvnvBwWªK A¨vj‡Kvnj kbv³Ki‡Y e¨eüZ nq- [Ref: nvRvix] i. Na avZz ii. PCl5 iii. m¨vwjmvBwjK GwmW wb‡Pi †KvbwU mwVK? A. i I ii B. i I iii C. ii I iii D. i, ii I iii Ans A Why wZbwU cixÿvi mvnv‡h¨ g‡bv-nvBwWªK A¨vj‡Kvnj mg~n‡K kbv³KiY Kiv hvq| (i) Na mn cixÿv, (ii) PCl5 mn cixÿv, (iii) jyKvm weKviKmn cixÿv| 05. Kvwe©j-A¨vwgb cixÿv Øviv kbv³ Kiv m¤¢e nq †KvbwU? [Ref: nvRvix] i. A¨vwbwjb ii. ‡K¬v‡ivdig iii. 1° A¨vwgb wb‡Pi †KvbwU mwVK? A. i I ii B. i I iii C. ii I iii D. i, ii I iii Ans D Why Kvwe©j A¨vwgb cixÿvi mvnv‡h¨ †K¬v‡ivdig I 1 A¨vwgb kbv³Kib Kiv nq| A¨vwbwjbI GK ai‡bi 1 A¨vwgb| 06. •Re †h․‡Mi bvgKi‡Y AMÖvwaKvi ZvwjKvq †Kvb g~jKwU AMÖMb¨? [Ref:Kexi] A. SO3H B. CHO C. COOH D. CONH2 Ans C Why COOH > SO3H > CONH2 > CHO| 07. C3H7COONa + NaOH CaO ––– Drcv`| G wewµqvq Drcv` Kx? [Ref:Kexi] A. B‡_b B. cÖ‡cb C. weD‡Ub D. †c‡›Ub Ans B Why C3H7COONa + NaOH CaO C3H8 + Na2CO3 08. bvBUªvBj Kvh©Kix g~j‡Ki ms‡KZ Kx? [Ref: Kexi] A. CNS B. NO2 C. CN D. SCN Ans C Why mvqvbvBW ev bvBUªvBj Gi ms‡KZ- CN 09. wb‡gœi ‡h․MwUi KvVv‡gv †`L| [Ref: Kexi] Dc‡i cÖ`Ë ‡h․MwU GKwU A¨v‡iv‡gwUK A¨vj‡Kvnj KviYA. Gi KvVv‡gv‡Z A¨v‡iv‡gwUK Pµ Av‡Q B. G ‡h․‡Mi cvk¦© wkK‡j – OH g~jK we`¨gvb C. GwU RvwiZ n‡q Gwm‡W cwiYZ nq| D. Dc‡ii meKwU Ans D Why ‡h․MwU 1 A¨vj‡Kvnj, ZvB GwU ZvrÿwYKfv‡e jyKvm weKvi‡Ki mv‡_ wewµqv K‡i bv| Z‡e GwU‡K RvwiZ Ki‡j GwmW cvIqv hvq| 10. CH3 – CH(OH) – CH2 – CHO ‡h․MwU ‡Kvb ai‡bi mgvYyZv ‡`Lvq? [Ref:Kexi] A. R¨vwgwZK mgvYyZv B. Av‡jvK mgvYyZv C. MvVwbK mgvYyZv D. ‡÷wiI mgvYyZv Ans B Why KvBivj Kve©b _vKvi Kvi‡Y †h․MwU Av‡jvK mgvYyZv cÖ`k©b K‡i| 11. K¨vwbRv‡iv wewµqvi g~j kZ© n‡jv Kve©wbj †h․‡Mi AYyi -Kve©b cigvYy‡Z nvB‡Wªv‡R‡bi Abycw¯
wZ| myZivs K¨vwbRv‡iv wewµqv †`q †Kvb †h․M?[Ref:Kexi] A. CH3-CH2-CHO B. CH3-CHO C. Cl3CCHO D. CH3-CO-CH3 Ans C 12. wbgœmg~‡ni g‡a¨ Kx wel‡q cv_©K¨ †`Lv hvq? [Ref:Kexi] A. MvVwbK ms‡K‡Z B. AvYweK ms‡K‡Z C. wÎgvwÎK web¨v‡m D. ivmvqwbK a‡g© Ans A 13. g¨v‡µv AYy wKš‧ cwjgvi bq †KvbwU? [Ref:mwÄZ] A. e¨v‡KjvBU B. ‡gjvWyi C. bvBjb 6, 6 D. ‡K¬v‡ivwdj Ans D Why e¨v‡KjvBU , †gjvWyi, bvBjb–6, 6 meB cwjgvi wKš‧ †K¬v‡ivwdj cwjgvi bq, GwU GKwU gvB‡µv AYy| 14. RMgX + CO2 → R– O || C –OMgX [H ],H O O R C MgX 2 B + Mg(OH)X B ‡h․MwU †Kvb †kªwYi †h․M n‡Z cv‡i? [ Ref:mwÄZ] A. wK‡Uvb B. Kve©w·wjK GwmW C. G÷vi D. A¨vjwWnvBW Ans B Why B †h․MwU Kve©w·wjK GwmW KviY CO2 †K wMÖMbvW© weKviKmn Av`ª© we‡kølY Ki‡j Kve©w·wjK GwmW •Zix nq| m¤ú~Y© wewµqvwU `vovqÑ RMgX+CO2→R– O || C –OMgX [H ],H O O MgX 2 R C RCOOH+Mg(OH)X 15. wb‡Pi ‡Kvb Kvh©Kix g~j‡Ki ‡h․M wgwó M‡Üi Rb¨ L¨vZ? [Ref:gwbgyj] A. –OH B. – H | C=O C. – O | C=OH D. – O || C–OR Ans D Why A¨vwj‡dwUK G÷v‡ii cvKv d‡ji gZ mywgó MÜ i‡q‡Q| 16. Am¤ú„³ A¨vjwWnvBW‡K Am¤ú„³ A¨vj‡Kvn‡j iƒcvšÍi Kivi mgq mvaviYZ wb‡gœi †Kvb weRviK e¨envi K‡i nq? [Ref:gwbgyj] A. Sn/HCl B. LiAlH4 C. NaBH4 D. Na/C2H5OH Ans C Why Am¤ú„³ A¨vjwWnvBW‡K Am¤ú„³ A¨vj‡Kvn‡j iƒcvšÍi Kivi mgq mvaviYZ NaBH4 weRviK e¨envi Kiv nq| KviY NaBH4 GKwU g„`y weRviK hvi Kve©b-Kve©b wØeÜb ev wÎeÜb fv½vi ÿgZv †bB| 17. ‡h weKviK Øviv •Re ‡h․‡Mi Kve©b-Kve©b wØe܇bi Dcw¯
wZ kbv³ Kiv hvq Zv n‡jv- [Ref:gwbgyj] A. Br2/CCl4 B. LiAlH4 C. Na/C2H5OH D. NaBH4 Ans A Why Kve©b-Kve©b wØ-e܇bi Dcw¯
wZ kbv³KiY Kiv hvq `ywU cixÿvi mvnv‡h¨| (i) Br2/CCl4 `ªnYmn cixÿv, (ii) †eqvi cixÿv| (R CH2 X) s + + –sCH2–OH

CHEMISTRY PLUS •Re imvqb 653 ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES C=C CH3 + (i) O3 (ii) Zn.H2O2 2CH3COCH3 CH3 CH3 CH3 CH3 CH CO CH2 CH2OH CH3 5 4 3 2 1 18. C5H10O AvYweK ms‡KZ ‡_‡K †h †kªwYi (†Mv‡Îi) ‡h․M n‡Z cv‡i Zv n‡jv- [Ref:gwbgyj] i. Kve©wbj ii. A¨vj‡Kvnj iii. B_vi wb‡Pi ‡KvbwU mwVK? A. i B. i I ii C. ii I iii D. i, ii I iii Ans A Why C5H10O ms‡KZ Øviv Kve©wbj †h․M (A¨vjwWnvBW ev wK‡Uvb) eySvq| 19. C6H12 AvYweK ms‡KZ wewkó GKwU A¨vjwKb‡K I‡RvbxqKiY Kivi ci wRsK Gi Dcw¯
wZ‡Z Av`ª© we‡kølY Ki‡j wb‡Pi †Kvb †h․M Drcbœ nq? [Ref:myfvl] A. CH3CH2OH B. CH3CH2COCH3 C. CH3COCH3 D. CH3CH2CHO Ans C Why 20. GKwU •Re †h․M 2, 4-WvBbvB‡UªvwdbvBj nvBWªvwR‡bi mv‡_ wewµqv K‡i njy` e‡Y©i Aat‡ÿc m„wó K‡i Avevi ‡h․MwU‡K U‡jb weKvi‡Ki mv‡_ Zvc w`‡j wmjfvi `c©Y m„wó nq| •Re †h․MwU n‡jv GKwUÑ [Ref:Rqbyj] i. Kve©vbvBj †h․M ii. A¨vjwWnvBW iii. wK‡Uvb wb‡Pi †KvbwU mwVK? A. i I ii B. i I iii C. ii I iii D. i, ii I iii Ans A Why ‣Re †h․MwU †h‡nZz 2, 4–DNPH Gi mv‡_ wewµqv K‡i njy` Aat‡ÿc m„wó K‡i ZvB †h․MwU Kve©bvBj †h․M| Avevi U‡jb weKvi‡Ki mv‡_ mv`v wmjfvi `c©Y Drcbœ K‡i ZvB Bnv A¨vjwWnvBW| 21. 1-nvB‡Wªvw·-4-wg_vBj-3-‡c›Uv‡bvb Gi MvVwbK ms‡KZ †KvbwU? [Ref:wjsKb] A. CH3 – CH2 – CO – CH(CH3) – CH2 – OH B. CH3 – CH(CH3) – CO – CH2 – CH2OH C. CH3 – C(CH3)2 – COCH2CH3 D. (CH3)2CHCH2COCH2OH Ans B Why 1-nvB‡Wªvw·-4-wg_vBj-3-‡c›Uv‡bvb 22. †ebwRb †_‡K •Zwi Kiv hvqÑ [Ref:gnmxb] i. MøvBA·vj ii. WvBwdbvBj iii. M¨vgvw·b wb‡Pi †KvbwU mwVK? A. i I ii B. i I iii C. ii I iii D. i, ii I iii Ans D Why †ebwRb I‡RvbxKi‡Yi gva¨‡g MøvBA·vj, Avqi‡bi mv‡_ D”P ZvcgvÎvq WvB wdbvBj Ges †K¬vwi‡bi mv‡_ M¨vgvw·b •Zix K‡i| 23. wb‡Pi †Kvb †h․MwU‡K AwZwi³ evqyi Dcw¯
wZ‡Z †cvov‡j †Kej 3 †gvj Kve©b-WvB-A·vBW I 3 †gvj cvwb Drcbœ n‡e? [Ref:¯^cb] A. C3H8 B. C2H7OH C. C2H5OCH3 D. CH3CO2CH3 e¨vL¨v: CH3COOCH3 + 7 2 O23CO2 + 3H2O VVI DATA AT A GLANCE HSC PART †miv K‡jR cÖkœ cÖkœ K‡jR wMÖMbvW© weKvi‡Ki mv‡_ wg_vb¨v‡ji wewµqvq Drcbœ nq cÖvBgvix A¨vj‡Kvnj| [ACC] BF3 B‡jK‡UªvdvBj| [VNC] Kvh©Kvix g~j‡Ki mwµqZvi AMÖvwaKv‡ii mwVK µg –COOH>CONH2>–NH2>–NO2 [NDC] CH3–CO–NH–CH2–CH3 Gi mwVK bvg N B_vBj B_vb¨vgvBW| [ND] –CHO g~jKwUi Dcw¯
wZi Kvi‡Y •Re †h․M Am¤ú„³ bv n‡jI Am¤ú„³Zvi †eqvi cixÿv cÖ`k©b K‡i| [NDC] C6H3N2Cl B‡jKUªbvKl©x weKviK| [NICK] ndg¨vb ÿz`ªvskKiY wewµqvq cÖ¯‧Z Kiv hvq RNH2 [ISCM] KvBivj Kve©b _vKv m‡Ë¡I †iwmwgK wgkÖY Av‡jvK mwµq bq| [HPCD] RNHR, H2O, ROH G¸‡jv wbDwK¬IdvBj| [HPCD] SN1 wewµqvq CH3X A¨vjKvBj n¨vjvB‡Wi mwµqZv Kg| [USCD] ‡K¬viv‡ji ms‡KZ CCl3–CHO [USCD] –COOH I –OH `ywU MÖæ‡ci wgj‡b G÷vi •Zix nq| [ACM] c¨vivwmUvgj •Zixi KuvPvgvj n‡jv m¨vwjmvBwjK GwmW| [ACM] ‡ebwR‡b C=C wØeÜb `yiZ¡ 0.139nm [IPSC] bvBjb Ñ 6, 6 •Zwi‡Z e¨eüZ cÖfveK TiO2 [LGCL] e¨v‡KjvBU †gjvgvB‡bi †iwRb wnmv‡e cwiwPZ| [JCSC] A¨vj‡Kb cÖ¯‧wZi c×wZi bvg n‡jv wWKve©w·‡jkb, †Kve ms‡kølY I DUR© wewµqv| [RCR] we‡ùviK c`v_© •Zix‡Z e¨eüZ nq wUGbwU I bvB‡UªvwMømvwib| [CPSC] ÷vP© †h․MwU n‡jv mij wkKj hy³ cwj Møy‡KvR I cwicvK‡hvM¨| [ISCM] KvBivj †K›`ªwewkó A¨vj‡Kvnj n‡jv 2 wg_vBj 1 weDUvbj| [HS] ‡MøvweDjvi ev eZz©jvKvi †cÖvwUb n‡jv Uviwmqvwi MVb| [HS] Am¤ú„³ A¨vjwWnvBW‡K Am¤ú„³ A¨vj‡Kvn‡j iƒcvšÍi mvaviYZ weRviK wnmv‡e NaBH4 e¨eüZ nq| [MS] ‡h weKviK Øviv •Re †h․‡Mi Kve©b-Kve©b wØe܇bi Dcw¯
wZ kbv³ Kiv hvq Zv n‡jv Br2/CCl4 [MS] C5H10O AvYweK ms‡KZ †_‡K Kve©wbj †h․M n‡Z cv‡i| [MS] R–CH2OH †K kbv³ Ki‡Z e¨eüZ nq dmdivm †c›Uv‡K¬vivBW| [SS] R–CHO Gi g‡a¨ Zn – Hg + Mvp HCl ‡hvM Ki‡j A¨vj‡Kb nq| [SS] CH3–CH(OH)–CH2–CHO †hvMwU ÑAv‡jvK mgvYyZv †`Lvq| [KS] `ywU GbvbwmIgvi mgvewa©Z Av‡jvi Zj‡K AveZ©b K‡i GKB gvÎvq wecixZ w`‡K| [KS] Kvwe©j A¨vwgb MVb K‡i cÖvBgvwi A¨vwgb| [KS] 2 A¨vj‡Kvn‡j RvwiZ n‡j wK‡Uvb Drcbœ nq| [KS] BDwiqvi MVb H2N–CO–NH2 Ges GwU GKwU A¨vgvBW| [KS] HCCH Ni 70C A; A †Z Kve©b Kve©b eÜb ‣`N©¨ 0.134nm [LS] ‡WU‡ji †ebwRb P‡µ Cl cigvYyi 4 b¤^‡i Kve©b i‡q‡Q| [LS] bvBUªvB‡ji Kvh©Kix g~j‡Ki ms‡KZ CN [MS] ‡ebwRb †_‡K •Zix Kiv hvq MøvBA·vj, WvB wdbvBj I M¨vgvw·b| [MS] C4H10O n‡jv A¨vj‡Kvnj I B_vi †h․M mg~‡ni ms‡KZ| [SS]

654 •Re imvqb CHEMISTRY PLUS ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES MCQ CONCEPT TEST WRITTEN 01. C3H8 Øviv MwVZ mgvYyKZwU? A. 2wU B. 3wU C. 5wU D. mgvYy nq bv 02. cÖcvBj A¨vj‡Kvn‡ji ev®ú‡K mwµq A¨vjywgbvi Dci w`‡q 350°C Zv‡c cwiPvjbv Ki‡j cvIqv hvq- A. CH4 B. CH3CH3 C. CH3CH2 = CH2 D. CH3CH ≡ CH 03. UjyBb g„`y Rvi‡Ki mv‡_ wewµqv K‡i Drcbœ K‡i- A. C6H5CH2OH B. C6H5COOH C. C6H5CHO D. C6H4(CH3) (OH) 04. C2H5OH RvwiZ n‡q Z Drcbœ nq| Z,C2H5OH Gi mv‡_ wewµqv K‡i G÷vi •Zwi K‡i| GLv‡b Z wK? A.HCOOH B.CH3COOH C.CH3CH2COOH D.CH3COOC2H5 05. wb‡Pi wewµqvwU‡Z cÖavb Drcv` wK? CH3-CH=CH-CHO 4 LiAlH A. CH3 - CH2 –CH2-CHO B. CH3 - CH = CH-CH2OH C. CH3 - CH2 –CH2-CH2OH D. CH3 - CH - CH2-CH3 06. wb‡¤œi ‡Kvb A‡ji IR eY©vjxi mvnv‡h¨ Kve©wbj g‚jK kbv³KiY Kiv hvq? A. 360 cm–1 - 3300 cm–1 B. 1860cm–1 - 1660 cm–1 C. 3000 cm–1 - 2800 cm–1 D. 1400 cm–1 - 1100 cm–1 07. wb‡Pi †Kvb&wU nvBcviKbRy‡MwUf ag© cÖ`k©b K‡i? A. –CH3 B. –OH C. –NH2 D. –CHO 08. 0˚C ZvcgvÎvq A¨vwbwjb Ges NaNO2 I HCl Gi wewµqvi Drcv`‡K K¶ ZvcgvÎvq †i‡L w`‡j wK cvIqv hvq? A. Benzene diazonium chloride B. Chlorobenzene C. Nitrobenzene D. Phenol 09. wb‡æi †hŠM¸‡jvi g‡a¨ me‡P‡q Kg ùzUbvsK †KvbwUi? A. Methane B. Ethane C. Butane D. Pentane 10. wb‡æi †Kvb †hŠMwU †K›`ªvKwl© cÖwZ¯’vcb wewµqv †`q? A. chlorobenzene B. ethylene C. dimethyleither D. 2-chloro-2-methylpropane 11. wMÖMbvW© weKvi‡Ki mv‡_ CH3CH2OH Gi wewµqvq wK Drcbœ nq? A. Alkane B. Propane C. Ester D. Aldehyde 12. wb‡Pi †Kvb †hŠMwU cwjgvi MVb Ki‡Z cv‡i? (D.U. 2001-2002) A. C6H5CH=CH2 B. CH3CH2OH C. CH3COOH D. CH3 OCH3 13. jyKvm weKvi‡Ki mv‡_ cÖvBgvix (1), †m‡KÛvix (2) Ges Uviwmqvix (3) A¨vj‡Kvn‡ji wewµqvi mwµqZvi µg †KvbwU? A. 1>2>3 B. 2>3>1 C. 3>2>1 D. 3>1>2 14. RX + KOH(aq)→ROH + KCI; 1 SN †KŠk‡ji †¶‡Î cÖ‡hvR¨- A. dc/dt [RX] B. dc/dt [KOH] C. dc/dt[RX] [KOH] D. dc/dt `ªve‡Ki †cvjvwiwU 15. wb‡Pi †KvbwU Positive Iodoform test cÖ`vb K‡i? A. 1-propanol B. 2-propanol C. 3-propanol D. None of these OMR SHEET 01. A B C D 06. A B C D 11. A B C D 02. A B C D 07. A B C D 12. A B C D 03. A B C D 08. A B C D 13. A B C D 04. A B C D 09. A B C D 14. A B C D 05. A B C D 10. A B C D 15. A B C D cÖkœ-16. A¨vj‡Kvnj I B_v‡ii g‡a¨ 2wU cv_©K¨ wjL? DËi : ............................................................................................ cÖkœ-17. gy³ cigvYy †RvU wK? DËi : ............................................................................................ cÖkœ-18. †dbj A¤øag©x †Kb? DËi : ............................................................................................ cÖkœ-19. A¨v‡ivg¨vwUK †h․‡Mi †ÿ‡Î nv‡Kj wbqg Kx? DËi : ............................................................................................ cÖkœ-20. wnbm& evM© cixÿv ej‡Z Kx eyS? DËi : ............................................................................................ cÖkœ-21. †Kvb †kÖwYi cwjgv‡i MøvB‡KvmvBW I †ccUvBW eÜb _v‡K? DËi : ............................................................................................ cÖkœ-22. A¨v‡µvwjb cixÿv Kx? DËi : ............................................................................................ cÖkœ-23. PCMX Kx? DËi : ............................................................................................ cÖkœ-24. B_vbj †_‡K B_vb¨vj cÖ¯ÍywZi wewµqvwU Kx? DËi : ............................................................................................ cÖkœ-25. A·vBg mvB‡K¬v †n·v‡bvb Gi ms‡KZwU wjL| DËi : ............................................................................................ MCQ ANSWER ANALYSIS WRITTEN cÖkœ bs DËi e¨vL¨v 01 D Kve©b msL¨v 4 Gi Kg n‡j A¨vj‡K‡bi †¶‡Î †Kvb mgvYy nq bv| 02 C CH3CH2CH2OH Al2O3 350˚C CH3CH2 = CH2 + H2O 03 C UjyBb‡K ga¨g gvÎvi RviK/ g„`y RviK ‡µvgvBj †K¬vivBW (CrO2Cl2) Øviv RvwiZ Ki‡j †ebRvjwWnvBW Drcbœ nq| (BUvW© wewµqv) 04 B †h‡Kv‡bv •Re GwmW A¨vj‡Kvn‡ji mv‡_ G÷vi •Zwi K‡i| 05 C CH3CH=CHCHO 4 LiAlH CH3CH2CH2CH2OH 06 B Part-16, Item-04 07 A CH3 g~jK H + •Zix K‡i – CH2 MVb Ki‡Z cv‡i Ges cieZ©x‡Z †h Kve©‡b B‡j±ªb NvUwZ Av‡Q †m Kve©‡b – CH2 g~jK B‡j±ªb `vb K‡i Ges Aci Kve©b Gi B‡j±ªb NvUwZ `~i K‡i| 08 A ZvcgvÎv 0C - 5C n‡j Wvqv‡Rvwbqvg jeY Ges ZvcgvÎv 10C Gi †ewk n‡j †dbj •Zwi nq| 09 A A¨vj‡K‡bi AvYweK fi e„w×i mv‡_ mv‡_ ùzUbvsK e„w× cvq| 10 D 2-chloro-2-methylpropane GKwU n¨v‡jv‡R‡bv A¨vj‡Kb| Avi n¨v‡jv‡R‡bv A¨vj‡Kbmg~n †K›`ªvKwl©K cÖwZ¯’vcb wewµqv †`q|

CHEMISTRY PLUS •Re imvqb 655 ASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES ASPECT SERIES 11 B wMÖMbvW© weKviK + 1 A¨vj‡Kvnj = A¨vj‡Kb ev m¤ú„³ nvB‡WªvKve©b| 12 A †ebwRb e¨vZxZ Am¤ú„³ †h․M cwjgvi MVb Ki‡Z cv‡i| [we¯ÍvwiZ Part-17, Item-03] 13 C jyKvm weKvi‡Ki mv‡_ A¨vj‡Kvn‡ji mwµqZvi µg- 321 [3 > 2 > 1] 14 A Part-16, Type-11 15 B Part-14, 30 bs wewµqv `ªóe¨ 16 i. A¨vj‡Kvnj wb‡R‡`i g‡a¨ ev cvwbi mv‡_ nvB‡Wªv‡Rb eÜb MVb Ki‡Z cv‡i; wKš‧ B_vimg~n wb‡R‡`i g‡a¨ ev cvwbi mv‡_ nvB‡Wªv‡Rb eÜb MVb Ki‡Z cv‡i bv| ii. A¨vj‡Kvnj Na avZzi mv‡_ avZe A¨vj‡Kv·vBW I H2 M¨vm Drcbœ K‡i| 2RCH2OH + 2Na 2RCH2–ONa + H2 wKš‧ B_vi G wewµqv †`q bv| 17 wd« †iwWK¨vj: mg‡hvRx wmMgv e܇bi mylg wefvR‡bi d‡j m„ó we‡Rvo (odd) B‡jKUªb msewjZ †Kvb cigvYy ev g‚jK‡K gy³ cigvYy †RvU ev wd« ‡iwWK¨vj (free radical) e‡j| D`vniY: wg_vBj wd« †iwWK¨vj (•CH3) Ges †K¬vwib wd« †iwWK¨vj (Cl•) DrcwË: Zvc A_ev Av‡jv †_‡K mieivn Kiv kw³ Øviv eÜb fv‡½ I wd« †iwWK¨vj Drcbœ nq| Cl : Cl h 2Cl• 18 Rjxq `ªe‡Y †dbj AvqwbZ n‡q †db·vBW Avqb Drcbœ K‡i Ges †cÖvUb Z¨vM K‡i ZvB GwU A¤øagx©Zv cÖKvk K‡i| 19 A¨v‡iv‡gwUK †h․‡Mi †ÿ‡Î (4n + 2) msL¨K B‡jKUªb _vKvi wbqg‡K nv‡Kj wbqg e‡j| †hLv‡b n n‡”Q c~Y© msL¨v| 20 cUvwmqvg nvB‡Wªv·vB‡Wi Rjxq `ªe‡Y †ebwRb mvj‡dvwbj †K¬vivBW I A¨vwgb †h․M‡K wgwkÖZ K‡i fv‡jv fv‡e SuvKv‡j 1-A¨vwg‡bi cwi®‥vi `ªeY •Zwi Kiv‡bv nq| 2– A¨vwgb A`ªeYxq †h․M •Zwi K‡i| 3– A¨vwgb †Kv‡bv wewµqv †`q bv| GwU wnbm evM© cixÿv bv‡g cwiwPZ| 21 ÷vP©, †mjy‡jvR cÖf…wZ cwjgv‡i MøvB‡KvmvBW eÜb Ges †cÖvwU‡b †ccUvBW eÜb _v‡K| 22 KHSO4 ev P2O5 mn wMømvwib‡K DËß Ki‡j A¨v‡µvwjb Drcbœ nq| wMømvwi‡bi wbiæ`b wewµqvwU‡K A¨v‡µvwjb cixÿv e‡j| 23 4-†K¬v‡iv-3, 5-WvB wg_vBj †db‡ji evwYwR¨K bvg †WUj, G‡K c¨viv †K¬v‡iv g¨vUvRvBwjbj ev PCMX e‡j| 24 2CH3CH2OH + O2 Ag 250C 2CH3CHO + 2H2O 25 C6H5–N=O–H cÖkœB hLb cÖkœ nq †kl `„wó KviY AbymÜvb cÖ‡qvRb bq (i) UªvÝ-mgvYyi `ªeYxqZv wmm-mgvYyi †P‡q Kg †Kb? (ii) GbvbwkIgv‡ii mg‡gvjvi wgkÖY Av‡jvK mwµqZv cÖ`k©b K‡i bv †Kb? (iii) †ebwRb B‡jKUªbvKl©x cÖwZ¯
vcb wewµqv w`‡jI wbDwK¬IwdwjK cÖwZ¯
vcb wewµqv †`q bv †Kb? (iv) †ebRvjwWnvBW K¨vwbRv‡iv wewµqv w`‡jI A¨vjWj Kb‡Wb‡mkb wewµqv †`q bv †Kb? •Re †h․M c„_KxKiY I Drm: •Re †h․M c„_KxKiY ‣Re †h․M c„_KxKiY ‣Re †h․M c„_KxKiY AviMj/†ZZzj n‡Z UviUvwiK GwmW Mj exwP n‡Z M¨vwjK GwmW †jey n‡Z mvBwUªK GwmW `wa n‡Z j¨vKwUK GwmW Av½yi n‡Z UviUvwiK GwmW Bÿz wPwb n‡Z A·vwjK GwmW mvB‡K‡j Kjv Avb‡j, f¨v‡bi A¨vwmwWwU nq, UvBUvwb‡Ki †Z‡ZvAv½yi Kg Avm‡j, gvëvi AvMv UK nq- mvB‡K‡j mvBwUªK GwmW Kjv Avb ‡j, (Kjv, Avbvim, †jey) f¨v‡bi (wf‡bMvi/wmiKv) A¨vwmwWwU nq; A¨vwmwUK GwmW UvBUvwb‡K UviUvwiK GwmW †Z‡Zv Av½yi (†ZZzj, Av½yi) Kg (Kgjv) Avm‡j, A¨vmKiweK GwmW gvëvi g¨vwjK GwmW Av Mv U K nq| (Av‡cj, MvRi, U‡g‡Uv, Kjv) †kl gyn~‡Z©i imvqb cÖ¯‧wZi Awfbe †K․kj mg„× mv‡Rkvbm - mivmwi 90%+... Kb‡mÞ Kgb †c‡Z... nvB‡Wª ªv‡Rb mv‡Rkbm& & iPbvq: †gv: †nv‡mb Avjx †jLK: †Kwgw÷ª cøvm; mivmwi : 01911 51 69 19 †Kv_vq †M‡j cve †Zvgvq?