2.2 Chemistry Plus

526 •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 C SURVEY TABLE wK coe? †Kb coe? †Kv_v n‡Z coe? KZUzKz coe? CONCEPT No. MAGNETIC TOPICS [hv co‡e] MAKING DECISION [†h Kvi‡Y co‡e] VVI For This Year DU GU M & D S & T Engr. HSC WRITTEN MCQ CONCEPT-01 •Re imvq‡bi m~Pbv - 75% 75% 50% - 50% * ** CONCEPT-02 •Re †h․‡Mi msKiY, eÜb‡KvY I eÜb‣`N¨© 75% 50% 50% 50% 50% 50% ** ** CONCEPT-03 ‣Re †h․‡Mi mg‡MvÎxq †kÖwY I Kvh©Kixg~jK 25% 75% 75% - - 75% *** ** CONCEPT-04 •Re †h․‡Mi bvgKiY I MvVwbK ms‡KZ 90% 75% 50% 75% 75% 75% *** *** CONCEPT-05 mgvYy I mgvYyZv 90% 75% 75% 75% 75% 75% *** *** CONCEPT-06 A¨v‡iv‡gwUK nvB‡WªvKve©b 75% 50% 75% 75% 50% 75% ** ** CONCEPT-07 †ebwR‡bi eû cÖwZ¯
vcb wewµqv I A‡_©v-c¨viv wb‡`©kK 90% 90% 90% 90% 75% 75% ** *** CONCEPT-08 wg_vBj †ebwRb [UjyBb] 75% 50% 75% 75% 50% 75% ** ** CONCEPT-09 eÜb wefvRb I weKviK mg~n 75% 50% 75% 75% 50% 50% ** *** CONCEPT-10 wewµqvi †K․kj ev †gKvwbRg 90% 25% 50% 50% 50% 50% ** *** CONCEPT-11 PART BY PART ORGANIC CHEMISTRY 90% 75% 75% 75% 90% 75% *** *** BASIC TOUCH AT A GLANCE ¸iæZ¡c~Y© k㸇”Qi cwiwPwZ I cÖ‡qvM [TOPICS Gi ¸iæZ¡vbymv‡i] kã cwiwPwZ I cÖ‡qvM •Re †h․M nvB‡WªvKve©b I G‡`i †_‡K D™¢~Z †h․Mmg~n‡K •Re †h․M ejv nq| †hgbt wg_vbj, diwgK GwmW cÖf„wZ| mg‡MvÎxq †kªwY GKB Kvh©Kixg~jK wewkó Ges GKB ai‡bi ag©wewkó •Re †h․Mmg~n‡K GK‡Î mg‡MvÎxq †kªwY ejv nq, mg‡MvÎxq †h․‡Mi †ÿ‡Î cvkvcvwk `ywU AYyi g‡a¨ GKwU –CH2– g~j‡Ki cv_©K¨ _v‡K Ges G‡`i mvaviY ms‡KZ GKB nq| Kvh©Kix g~jK †h mKj cigvYy ev cigvYy¸”Q ev g~jK †Kvb •Re †h․‡Mi AYy‡Z we`¨gvb †_‡K H †h․‡Mi †f․Z I ivmvqwbK agv©ejx Kvh©Z ivmvqwbK wewµqv wbav©iY K‡i Zv‡`i‡K Kvh©Kix g~jK e‡j| mgvYyZv GKB AvYweK ms‡KZ wewkó wKš‧ wfbœ †f․Z I ivmvqwbK ag© m¤úbœ †h․Mmg~n‡K ci¯ú‡ii mgvYy e‡j Ges H welqwU‡K mgvYyZv ejv nq| AcÖwZmg Kve©b †h Kve©b †K‡›`ªi mv‡_ PviwU wfbœ cÖwZ¯
vcK hy³ _v‡K †mB Kve©b †K›`ª‡K KvBivj Kve©b ev AcÖwZmg Kve©b e‡j| GbvbwmIgvi †h mKj wÎgvwÎK mgvYy ci¯ú‡ii mv‡_ m¤úwK©Z Ges hv‡`i `c©b cÖwZwe¤^ ci¯ú‡ii Dci Dcwi¯
vcbxq bq (non-super impossible) Zv‡`i‡K GbvbwmIgvi ejv nq| †iwmwgK wgkªY GbvbwmIgvi Gi mg‡gvjvi wgkªY‡K †iwmwgK wgkªY ejv nq| Wvqv‡÷wiIgvi `ywU Am`„k KvBivj †K›`ª wewkó, GKB AvbweK ms‡KZ hy³ •Re †h․‡Mi wfbœ KbwdMv‡ikb hy³ `ywU Av‡jvK mgvby ci¯úi Gi `c©b cÖwZwe¤^ bv n‡j, G‡`i‡K Wvqv‡÷wiIgvi e‡j| A¨v‡iv‡gwUK †h․M †ebwRb, †ebwRb RvZK I we‡kl ai‡bi Am¤ú„³Zv wewkó PµvKvi mgag©x •Re †h․Mmg~n‡K A¨v‡iv‡gwUK †h․M ejv nq| nv‡Kj wbqg •Re †h․‡Mi nv‡Kj cÖ¯ÍvweZ A¨v‡iv‡gwUwmwU cÖKv‡ki cÖ‡qvRbxq kZ©¸‡jv‡K nv‡Kj wbqg e‡j| gvK©wbKf wbqg AcÖwZmg A¨vjwK‡bi m‡½ AcÖwZmg weKvi‡Ki hyZ wewµqvq weKvi‡Ki FYvZ¥K AskwU wØ-eÜb Øviv hy³ Kve©b cigvYy `ywUi g‡a¨ †mB Kve©b cigvYyi m‡½ cÖavbZ hy³ nq, †hwU‡Z nvB‡Wªv‡Rb cigvYyi msL¨v A‡cÿvK…Z Kg _v‡K| hyZ wewµqv ‡h wewµqvi wewµqK AYy¸wj ci¯úi hy³ n‡q hvq Ges AYy `ywU †Kvb As‡kB Avjv`v nq bv| Zv‡K hyZ wewµqv e‡j| AcmviY wewµqv ‡h wewµqvi gva¨‡g GKwU wewµqK AYy n‡Z `ywU cigvYy ev g~jK AcmvwiZ n‡q GKwU bZzb e܇bi m„wó nq Zv‡K AcmviY wewµqv e‡j| cybwe©b¨vm wewµqv ‡h wewµqvq GKB AYy‡Z we`¨gvb †Kvb cigvYy ev g~jK cybwe©b¨¯Í n‡q bZzb GK AYy‡Z cwiYZ nq Zv‡K cybwe©b¨vm wewµqv e‡j| m¨vÛ‡gqvi wewµqv Wvqv‡Rvwbqvg jeY n‡Z †K¬v‡iv‡ebwRb ev †eªv‡gv‡ebwRb cÖ¯‧wZ Kivi wewµqv‡K m¨vÛ‡gqvi wewµqv ejv nq| cøvw÷wmwU GwU cøvw÷K c‡Y¨i ag©| cøvw÷K RvZxq c`v‡_©i Dci ej cÖ‡qvM Ki‡j AvKv‡ii weK…wZ N‡U Avevi e‡ji AcmviY NUv‡j cybivq c~‡e©i Ae¯
vq wd‡i Av‡m| MøvB‡KvmvBW eÜb Møy‡KvR AYymg~‡ni g‡a¨ Nbxfeb wewµqvKv‡j m„ó eÜb‡K MøvB‡KvmvBW eÜb e‡j| †ccUvBW eÜb A¨vwg‡bv GwmWmg~‡ni g‡a¨ Nbxfeb wewµqvq m„ó –CO–NH– eÜb‡K †ccUvBW eÜb e‡j| MERGEFORMAT Chemistry Plus Process -2020 (17.3.2020)\03.2nd Paper_Shahjada\With Underline Final (2nd)-2020\02. Organic Chemistry-1 311-411 Ok_Sha.doc Ok_Print Sha 2q cÎ Aa¨vq-02 •Re imvqb ORGANIC CHEMISTRY

CHEMISTRY PLUS •Re imvqb 527 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 CONCEPT 01 •Re imvq‡bi m~Pbv ‣Re imvq‡bi BwZnvm m¤úwK©Z Z_¨ : * ev‡R©wjqvm gZ cÖKvk K‡ib †h mRxe Dw™¢` ev cÖvYx †_‡K cÖvß e¯‧‡K ejv nq •Re †h․M Ges wbR©xe †_‡K cÖvß e¯‧‡K ejv nq A‣Re †h․M GRb¨ ev‡R©wjqvm Gi gZev`wU‡K ejv nq cÖvYkw³i gZev` ev Vital Force Theory| welq weÁvbxi bvg ‡`k welq weÁvbxi bvg ‡`k ‣Re †h․M bv‡gi cÖeZ©K ev‡R©wjqvm (1807) myB‡Wb ‣Re imvq‡bi RbK ‡d«WwiL Dnjvi Rvgv©bx imvq‡bi RbK j¨vfqwm‡q d«vÝ ‡÷wiI imvq‡bi RbK ‡R GBP f¨v›U-nd ‡b`vij¨vÛ AvaywbK imvq‡bi RbK Rb Wvëb weª‡Ub ‡ebwR‡bi lof~R KvVv‡gv AMv÷ †KKzj Rvgv©bx cÖvYkw³ gZev‡`i RbK ev‡R©wjqvm (1815) myB‡Wb A¨vwmwUK GwmW ms‡kølY ‡Kv‡e (1845) Rvgv©bx †R‡b ivLv fvj: A¨v‡gvwbqvg mvqv‡bU †_‡K BDwiqv Drcv`‡bi GB wewµqvwU‡K •Re imvq‡bi m~PbvKvix wewµqv ejv nq| 2NH4Cl(aq) + Pb(CNO)2(aq) 2NH4CNO(aq) + PbCl2(s) ; NH4CNO – H2NCONH2 me©cÖ_g cixÿvMv‡i cÖ¯‧ZK…Z ivmvqwbK c`v‡_©i bvg- BDwiqv| BDwiqvi ivmvqwbK bvg- A¨v‡gvwbqvg Kve©v‡gU ev Kve©vgvBW| •Re †h․‡Mi msÁvMZ Z_¨Ñ nvB‡WªvKve©b I nvB‡WªvKve©bRvZ †h․MB ‣Re †h․M| ‣Re †h․‡Mi gvZ… Dcv`vb Kve©b Z‡e Kve©‡bi mv‡_ H/X (n¨v‡jv‡Rb)/O/N/S/P (Kve©b e¨wZZ 6wU †g․j) _vK‡Z cv‡i| g‡b ivLvi gRvi wbqg nvjyqv Pcm& bvI nvjyqv n¨v‡jv‡Rb (X) Pcm& C, H, O, P, S bvI N2 e¨wZµg (hv wKQz e¨wZµg ZvB cixÿvq Av‡m) nvB‡Wªv‡Rbwenxb •Re †h․M [CCl3–NO2, COCl2, CFC (11, 12, 112, 114), CCl4] Kve©b wewkó A‣Re †h․M [avZe mvqvbvBW (KCN), avZe Kv‡e©vwbj [Fe(CO)5, Ni(CO)4], Kve©‡bi A·vBW (CO, CO2), avZe Kve©vBW (CaC2), AavZe mvjdvBW (CS2), Kve©wbK GwmW (H2CO3) Ges Gi jeY mg~n (CaCO3)|] Kve©b I nvB‡Wªv‡Rb _vKv ¯^‡Ë¡I •Re †h․M bq [NH4CNO, NaHCO3, H2CO3] •Re †h․‡Mi msL¨vwa‡K¨i KviYÑ PIC: P Polymerisation, I Isomerism, C Catenation K¨v‡U‡bkbÑ wewfbœ AvKvi I AvK…wZi `xN© wkKj MVb Kivi ag©‡K Catenation e‡j| (Latin kã Catena A_© wkKj) Kve©‡bi PZy‡hv©R¨ZvÑ GKK, wØ I wÎ eÜb MV‡bi cÖeYZv| we‡kl †h․M MV‡bi cÖeYZvÑ dzjvwibt GwU Kve©‡bi we‡kl iƒc‡f` †hLv‡b 30-70wU Kve©b cigvYy mg‡hvRx e܇b _v‡K| K¨v‡U‡bk‡bi we‡kl D`vniY nj dzjvwib| dzjvwib bvgK `xN© wkK‡ji •Re †h․MwUi AvYweK fi 720| G KvVv‡gv‡Z Kve©b cigvYymg~n sp 2 msKwiZ _v‡K| dzjvwi‡bi AvK…wZ dzUe‡ji gZ| c„w_exi me©e„nr AYy dzjvwib| •Re †h․‡Mi •ewkó¨: Q‡›` Q‡›` •Re †h․‡Mi •ewkó¨ wkwL Gevi ev‡K¨ ev‡K¨ wekvj iv‡R¨i e܇b mg‡hvRx wbR wbR `ªve‡K `ªeYxq `n‡b †bB Ae‡kl Acwievnx n‡jI gš
i †ek (i) •Re †h․‡Mi msL¨v AZ¨waK (80 jÿvwaK) (ii) mKj eÜb mg‡hvRx (iii) •Re `ªve‡K `ªexf~Z (iv) •Re †h․‡M `nb Ki‡j Ae‡kl _v‡K bv (v) weï× •Re †h․M Acwievnx Ges (vi) wewµqvi MwZ †ek gš
i| •Re †h․‡Mi DrmDrm cÖvß •Re †h․M •Re †h․‡Mi Drm cÖvß •Re †h․M Dw™¢` wPwb (C12H22O11), ÷vP© (C6H10O5)n, Dw™¢¾ †Zj Kqjvi weaŸsmx cvZb †ebwRb (C6H6), ‡dbj (C6H5OH), UjyBb, RvBwjb Kvô cvZb wg_vbj (CH3OH), A¨vwmwUK GwmW (CH3COOH) †c‡Uªvwjqvg wW‡Rj, †K‡ivwmb, †c‡Uªvj, b¨vc_v, †fmwjb Rxe-Rš‧ BDwiqv, BDwiK GwmW, A¨vgvB‡bv GwmW, G÷vi Aw¯
 KzB‡bvwjb (C9H7N), wcwiwWb (C5H5N)

528 •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 •Re †h․‡Mi †kªYxweb¨vm- •Re †h․M gy³wkKj ev A¨vwj‡dwUK m¤ú„³ (Saturated) CC [CH3CH3] †nUv‡ivmvBwK¬K ev welg PvwµK C, H + (S, O, N) mvBwK¬K ev PvwµK ev e×wkKj Am¤ú„³ Kv‡e©vmvBwK¬K ev †nv‡gvmvBwK¬K (Unsaturated) C = C/C C [CH2 = CH2] †nUv‡iv A¨vwjmvBwK¬K CH2 CH2 O Bw_wjb A·vBW †nUv‡iv A¨v‡iv‡gwUK O wdDivb S _v‡qvwdb N H cvBij N wcwiwWb A¨vwjmvBwK¬K CH2CH2 CH2CH2 mvB‡K¬vweD‡Ub A¨v‡iv‡gwUK †ebwRb †ebwRb‡qW bb‡ebwRb‡qW (†ebwRb) (b¨vc_vwjb) (A¨vb_ªvwmb) euvP‡Z n‡j Rvb‡Z n‡e : weÁvbx Ae`vb kx‡j Av½yi †_‡K UviUvwiK GwmW ms‡kølY Av‡cj †_‡K g¨vwjK GwmW ms‡kølY cÖvYxR Pwe© †_‡K wMømvwib ms‡kølY j¨v‡gix Lv`¨ `ªe¨, e¨envh© I Ae¨envh© AmsL¨ ivmvqwbK `ªe¨vw`‡K Zv‡`i Drm Abymv‡i cÖavbZ wZb †kªYx‡Z fvM K‡ib| ivDwj g~Î †_‡K BDwiqv AvniY| SAQ: [Short Answer Question] cÖ‡kœvˇi •Re imvq‡bi m~Pbv : [JU-D5 ..2017-18; JU-D.Ka.20 16-17] cÖkœ-01: K¨v‡U‡bkb Kx? [w`.‡ev. 2015] Dt Concept-01 cÖkœ-02: †nUv‡iv A¨vwjmvBwK¬K †h․‡Mi D`vniY `vI [w`.‡ev. 2015] Dt Bw_wjb A·vBW| cÖkœ-03t BDwiqvi ivmvqwbK bvg-wK? Dt Kve©vgvBW| cÖkœ-04t A¨vwjmvBwK¬K †h․‡Mi mvavib ms‡KZ `vI Dt CnH2n; n=3,4,6 etc. cÖkœ-05: BDwiqv Kx? A¨v‡gvwbqvg mvqv‡bU‡K DËß Ki‡j wK N‡U| [BUET. 2003-04, RUET. 2006-07] Dt Concept-01 cÖkœ-06: cÖvYkw³ gZev` Kx? Dt Concept-01 REAL TEST ANALYSIS OF PREVIOUS YEAR QUESTIONS STEP 01 ANALYSIS OF GENERAL UNIVERSITY QUESTION DU 01. wb‡Pi †Kvb †h․‡Mi cybwe©b¨v‡mi d‡j BDwiqv cvIqv hvq? [DU. 2001-02, RU-F. 2015-16, RU.2008-09, JU. 2010-11, SAU. 2004-05, 2002-03] A. NH4COH B. NH4CNS C. NH4COO D. NH4CNO mwVK DËi: D. NH4CNO e¨vL¨v: NH4CNO – H2NCONH2 JnU 01. †Kvb& •Re †h․‡M nvB‡Wªv‡Rb Abycw¯
Z? [JnU. 2012-13, 2011-12, RU. 12-13] A. †K¬v‡ivwcwµb B. M¨vgvw·b C. mvB‡K¬v‡n·vbj D. †KvbwU bq mwVK DËi: A. †K¬v‡ivwcwµb e¨vL¨v: nvB‡Wªv‡Rb wenxb •Re †h․M- CCl3-NO2, CCl4, COCl2, CF2=CF2 JU 01. wb‡Pi †KvbwU welg PvwµK †h․M? [JU-A, Set-D. 2019-20; DU.7Clg-2019-20, RU.G1-2017-18, HSTU-17-18, CU-09-10, KU-15-16, SUST-B. 19-20, MBSTU-2019-20] A. mvB‡K¬v‡n‡·b B. wdDivb C. mvB‡K¬v‡cÖv‡cb D. b¨vd_¨vwjb mwVK DËi: B. wdDivb 02. †KvbwU †nUv‡ivmvBwK¬K †h․M? [JU-D3.2017-18; A9.2017-18, 2010-11, RU. 2012-13, CoU. 2012-13, h.‡ev. 2016] A. mvB‡K¬v‡cÖv‡cb B. ‡ebwRb C. _v‡qvwdb D. mvB‡K¬v‡n‡·b mwVK DËi: C. _v‡qvwdb e¨vL¨v: †h mKj mvBwK¬K †h․‡Mi MV‡bi g‡a¨ mvaviYZ †nUv‡iv †g․j (X, P, O, N, S) _v‡K Zviv †nUv‡ivmvBwK¬K †h․M nq| 03. †KvbwU A¨vwjmvBwK¬K †h․M? [JU-6.2017-18] A. wcwiwWb B. mvB‡K¬vweD‡Ub C. cvBij D. †ebwRb mwVK DËi: B. mvB‡K¬vweD‡Ub e¨vL¨v: A¨vwjmvBwK¬K †h․‡Mi mvaviY ms‡KZ: CnH2n, n = 3,4,6 -----| †hgbn = 3 n‡j mvB‡K¬v‡cÖv‡cb Ges n = 4 n‡j mvB‡K¬vweD‡Ub|

CHEMISTRY PLUS •Re imvqb 529 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. †KvbwU †nv‡gvmvBwK¬K A¨v‡iv‡gwUK †h․M? [JU-D1.2017-18] A. mvB‡K¬v‡n‡·b B. †ebwRb †n·v‡K¬vivBW C. †dbj D. _v‡qvwdb mwVK DËi: C. †dbj e¨vL¨v: †h mKj A¨v‡iv‡gwUK †h․‡Mi Pµ KvVv‡gv ïaygvÎ Kve©b cigvYyi Øviv MwVZ| Zv‡`i‡K mylg ev †nv‡gvmvBwK¬K A¨v‡iv‡gwUK †h․M e‡j| †hgb- †ebwRb, †dbj, UjyBb| 05. Am¤ú„³ nvB‡WªvKve©b- [JU-D: 2014-15, CU. 2019-20, 2003-04] A. AK‡Ub B. †cÖv‡cb C. †n‡Þb D. B_vBb mwVK DËi: D. B_vBb e¨vL¨v: -eÜb wewkó nvB‡WªvKve©bB nj Am¤ú„³ nvB‡WªvKve©b| B_vB‡bi g‡a¨ -eÜb we`¨gvb| 06. wb‡Pi †KvbwU †nUv‡ivmvBwK¬K A¨vwj‡dwUK †h․M? [JU-D. 2013-14] A. Bw_wjb A·vBW B. wdDivb C. _v‡qvwdb D. wcwiwWb mwVK DËi: A. Bw_wjb A·vBW 07. †KvbwU welg PvwµK/†nUv‡ivmvBwK¬K A¨v‡iv‡gwUK †h․M? [JU.2011-2012, JU. 2008-09, CU.2009-10; RU.2009-10; CU.2012- 13;RU.2012-13; MBSTU.2019-20; JUST.B-2016-17; MAT.2007-08] A. †ebwRb B. UjyBb C. wcwiwWb D. b¨vc_vwjb mwVK DËi: C. wcwiwWb e¨vL¨v: •Re †h․‡M C + (S/ O/ N/ P/ X) _vK‡j Zv welg PvwµK nq| †hgbt- wdDivb (C4H4O), _v‡qvwdb (C4H4S) cvBij (C4H5N), wcwiwWb (C5H5N) 08. †KvbwU Am¤ú„³ nvB‡WªvKve©b? [JU. 2011-2012] A. mvB‡K¬v‡cÖv‡cb B. mvB‡K¬v‡n‡·b C. b¨vc_vwjb D. †cÖv‡cb mwVK DËi: C. b¨vc_vwjb e¨vL¨v: •Re †h․‡M wØ ev wÎeÜb _vK‡j Zv Am¤ú„³ nq| 09. †Kvb weÁvbx 1773 mv‡j gvbe g~Î †_‡K BDwiqv bvgK GK SvuSv‡jv c`v_© AvniY K‡ib? [JU. 2009-2010] A. †d«WwiK †fvjvi B. ivDwj C. wb‡Kvjvm j¨v‡gix D. j¨vfqwm‡q mwVK DËi: B. ivDwj 10. wØeÜbhy³ Am¤ú„³ †h․‡Mi D`vniY- [JU. 2009-2010] A. C2H2 B. C2H4 C. C3H8 D. C4H10 mwVK DËi: B. C2H4 11. A¨vwj‡dwUK †h․‡Mi D`vniY- [JU. 2009-2010] A. CH3CH2OH B. C. D. H3C OH O N mwVK DËi: A. CH3CH2OH e¨vL¨v: B_vbj GKwU A¨vwj‡dwUK †h․M| evwK me¸‡jvB A¨v‡iv‡gwUK| KviY G‡Z ‡ebwRb‡qW KvVv‡gv we`¨gvb| 12. •Re imvq‡bi RbK- [JU. 2007-08] A. Dn&jvi B. ev‡R©wjqvm C. Gwgj wdkvi D. †KvbwUB bq mwVK DËi: A. Dn&jvi 13. GKB †g․‡ji cigvYymg~‡ni g‡a¨ eÜb m„wói gva¨‡g wewfbœ •`‡N©¨i wkKj MV‡bi ag©‡K wK e‡j? [JU. 2006-07, RU. 2006-07, MBSTU. 2014-15] A. A¨vbvqb B. K¨v‡U‡bkb C. †nv‡gvmvBwK¬K D. †nUv‡ivmvBwK¬K mwVK DËi: B. K¨v‡U‡bkb RU 01. mvaviYZt †Kvb ag©wU GKwU •Re †h․‡Mi •ewkó¨ wn‡m‡e aiv nq? [RU-Ka,Set-3: 2018-19, RU-2012-13] A. wb¤œ MjbvsK B. D”P MjbvsK C. †cvjvi `ªve‡K `ªve¨Zv D. A‡cvjvi `ªve‡K A`ªve¨Zv mwVK DËi: A. wb¤œ MjbvsK 02. Kve©b †h․‡Mi cwigvY AmsL¨ nIqvi KviY Kx? [RU,Set-3: 2018-19 ,BSMSTU-C. 2016-17] A. cwjgvivB‡Rkb B. K¨v‡U‡bkb C. AvB‡mvgvivB‡Rkb D. me¸‡jv mwVK DËi: D. me¸‡jv e¨vL¨v: Kve©‡bi †h․M ev •Re †h․‡Mi cÖvPz‡h©i KviY t i) K¨v‡U‡bkb ag© ii) mgvYyZv ag© iii) cwjgviKiY ag© iv) Kve©‡bi †hvRbx 4 03. dzjvwib †Kvb †g․‡ji iƒc‡f`? [RU-C, 2014-15, MBSTU- A. 2011-12] A. †d¬vwib B. dmdivm C. mvjdvi D. Kve©b mwVK DËi: D. Kve©b e¨vL¨v: Kve©‡bi iæc‡f` wZbwUÑ i) nxiK ii) MÖvdvBU iii) dzjvwib| 04. KwVb A¨v‡gvwbqvg mvqv‡bU •Zix Ki‡Z wM‡q AvKw¯§Kfv‡e BDwiqv Avwe®‥vi K‡ib †Kvb weÁvbx? [RU. 2012-2013] A. F. Wholer B. Emil Fischer C. Clemmensen D. Eric Huckel mwVK DËi: A. F. Wholer 05. †KvbwU Kv‡e©vmvBwK¬K †h․M? [RU.2006-2007] A. †ebwRb B. wcwiwWb C. wdDivb D. B_vbj mwVK DËi: A. †ebwRb e¨vL¨v: ms‡KZ- ïay gvÎ Kve©b I nvB‡Wªv‡Rb Øviv MwVZ PvwµK †h․MB n‡”Q Kv‡ev©mvBwK¬K †h․M| 06. Kve©b I nvB‡Wªv‡R‡bi mgš^‡q MwVZ †h․Mmg~‡ni wmwiR‡K wK e‡j? [RU. 2006-07, JU. 2006-07] A. Kv‡e©vnvB‡WªU B. wg‡_b C. nvB‡WªvKve©b D. Kve©b wkKj mwVK DËi: C. nvB‡WªvKve©b CU 01. †Kvb •Re †h․MwU m¤ú„³? [CU. 2019-20] A. B_vbj B. Bw_wjb C. GwmwUwjb D. †ebwRb mwVK DËi: A. B_vbj e¨vL¨v: mKj GKK eÜbhy³ •Re †h․M m¤ú„³ •Re †h․M | B_vbj Gi MvVwbK ms‡KZ †`L‡jB eySv hvq| 02. ‡KvbwU •Re †h․M bq? [CU-A.2017-18, RU. 2009-10] A. CS2 B. HCHO C. CaC2 D. HCO2H mwVK DËi: A. CS2 I C. CaC2 e¨vL¨v: Kve©‡bi mv‡_ H, N, S, O n¨v‡jv‡Rb cÖf…wZ cigvYy wb‡q •Re †h․M MwVZ nq| Z‡e wKQz msL¨K Kve©b NwUZ †h․M †hgb- Kve©‡bi A·vBW (CO, CO2), Kve©‡bU(CaCO3), Kve©vBW ev avZe Kve©vBW (CaC2), WvBmvjdvBW (CS2) Ges avZe mvqvbvBW (KCN), avZe Kv‡e©vwbj [Fe(CO)5, Ni(CO)4] cÖf…wZ †h․Mmg~n A‣Re †h․‡Mi m`„k nIqvq Zv‡`i‡K •Re †h․‡Mi AšÍf~©³ Kiv nq bv, Giv A‣Re †h․M| [Ref. ‡`‡jvqvi ‡nv‡mb I ¸n m¨vi] 03. •Re †h․‡Mi Dcv`vbÑ [CU-H. 2013-14] A. C, N, O B. N, Cl, O C. H, O, N D. C, H, O, N, P, S E. N, O, P, S, Fe mwVK DËi: D. C, H, O, N, P, S 04. †KvbwU A¨v‡iv‡gwUK †h․M bq? [CU-I, 2013-14] A. †ebwRb B. wcwiwWb C. WvB-A¨v‡Rv jeY D. mvB‡K¬v‡c›Uv‡bvb E. †eb‡RvwqK GwmW mwVK DËi: D. mvB‡K¬v‡c›Uv‡bvb 05. A‣Re †ebwRb ej‡Z †KvbwU‡K eySvq? [CU.2009-10, JU. 2011-12] A. C5H5N B. C6H6NH2 C. C6H12 D. C6H5OH E. B3N3H6 mwVK DËi: E. B3N3H6 e¨vL¨v: Kve©b nvB‡Wªv‡Rb Qvov Ab¨ g~jK _vK‡j Zv A‣Re †ebwRb bv‡g L¨vZ| †hgb- B3N3H6| N B B N B N H H H H H H Borazine

530 •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 KU 01. †Kvb †h․MwU m¨vPz‡i‡UW (saturated) nvB‡WªvKve©b? [KU-A. 2011-12] A. B‡_b B. Bw_b C. B_vBb D. B_vbj mwVK DËi: A. B‡_b e¨vL¨v: Kve©b Kve©b GKK eÜb hy³ mKj nvB‡WªvKve©b m¤ú„³ (saturated) †h․M| CoU 01. wb‡Pi †KvbwU •Re †h․M bq? [CoU-A. 2016-17] A. KCN B. CH3I C. CH3CN D. C6H6 mwVK DËi: A. KCN STEP 02 ANALYSIS OF SCIENCE & TECHNOLOGY QUESTION SUST 01. †KvbwU †nUv‡ivmvBwK¬K A¨v‡iv‡gwUK †h․M bq? [SUST-B.2016-17] A. cvBij B. wdDivb C. _v‡qvwdb D.UªvBbvB‡UªvUjyBb E. wcwiwWb mwVK DËi: D. UªvBbvB‡UªvUjyBb e¨vL¨v: †nUv‡ivmvBwK¬K †h․‡M †n‡U‡iv A¨vUg (S, O, N) P‡µi wfZ‡i _vK‡e| 02. †KvbwU A¨v‡iv‡gwUK †h․M? [SUST 2011-2012] A. mvB‡K¬v‡cÖvwcb B. RvBwjb C. mvB‡K¬v‡n‡·b D †cÖv‡cb mwVK DËi: B. RvBwjb e¨vL¨v: ms‡KZ- A¨v‡iv‡gwUK †h․M¸‡jv n‡”Q †ebwRb RvZ ‡h․M| 03. wb‡Pi †KvbwU •Re †h․‡Mi D`vniY bq? [SUST. 2006-2007] A. CH3Cl B. CH3OH C. H2NCONH2 D. ZnCO3 mwVK DËi: D. ZnCO3 JUST 01. cÖ_g †h •Re †h․M cix¶vMv‡i •Zix nq Zvi bvg wK? [JUST: 2018-19,11-12, JU. 2011-12, JnU. 2013-14, RU-F. 2011-12] A. wg‡_b B. B_vbj C. BDwiqv D. †ebwRb mwVK DËi: C. BDwiqv MBSTU 01. N †h․MwUi bvg wK? [MBSTU-B1.2017-18] A. _v‡qvwdb B. wcwiwWb C. wdDivb D. UjyBb mwVK DËi: B. wcwiwWb 02. †KvbwU BDwiqvi ms‡KZ? [MBSTU-C2.2017-18, RU. 2012-13, CU. 2009-10] A. NH – CO – CH B. NH2CONH2 C. NH2 – CO2 – NH2 D. NH2COCH3 mwVK DËi: B. NH2CONH2 BSMRSTU 01. †KvbwU cwjwbDwK¬qvi †h․MÑ [BSMRSTU-C. 2019-20] A. A¨vb_ªvwmb B. †ebRvBj †K¬vivBW C. cvBij D. wcKwiK GwmW mwVK DËi: A. A¨vb_ªvwmb STEP 04 ANALYSIS OF MEDICAL & HSC QUESTION MAT 01. •Re †h․M •Zix‡Z wb‡gœi †Kvb †g․wjK c`v_© jv‡M bv? [MAT. 11-12, 05-06] A. Kve©b B. mvjdvi C. dmdivm D. ‡K¬vwib mwVK DËi: bvB| e¨vL¨v: •Re †h․M •Zix‡Z Dc‡ii me¸‡jvB e¨envi Kiv nq| 02. •Re †h․M m¤ú‡K© wb‡Pi †KvbwU mwVK bq? [MAT 2011-12, 2008-09] A. K¨v‡U‡bkb B. PZz‡h©vR¨Zv C. mgvYyZv D. gš
i AvqwbK wewµqv mwVK DËi: D. gš
i AvqwbK wewµqv 03. †d«WwiK Dnjvi BDwiqv cÖ¯‧wZi mgq wb‡¤œi †Kvb `ªeY †hvM K‡ib? [MAT. 2009-10] A. CH2CH2Br B. nHCHO C. 2NH3 D. Pb(CNO)2 mwVK DËi: D. Pb(CNO)2 04. wb‡¤œi †KvbwU •Re †h․‡Mi Rb¨ mZ¨ bq? [MAT. 2007-08] A. cÖavbZ AvqwbK eÜb Øviv MwVZ nq B. B_vi I †ebwR‡b `ªeYxq C. `n‡bi ci †Kvb Ae‡kl _v‡K bv D. wewµqvi †K․kj RwUj I gš
i MwZi nq mwVK DËi: A. cÖavbZ AvqwbK eÜb Øviv MwVZ nq 05. weÁvbx †KKzj Gi Ae`vb †KvbwU? [MAT. 2003-04] A. †ebwR‡bi KvVv‡gv ZË¡ B. ivmvqwbK e܇b B‡jKUªbxq ZË¡ C. cÖvYkw³ gZev` D. Dc‡ii †Kv‡bvwUB bq mwVK DËi: A. †ebwR‡bi KvVv‡gv ZË¡ 06. K¨v‡U‡bkb g~jZ †`Lv hvq? [MAT 2003-04, 2004-05; h.†ev:2017] A. Aw·‡R‡b B. ‡mvwWqvg C. Kve©‡b D. ‡ewiqv‡g mwVK DËi: C. Kve©‡b e¨vL¨v: K¨v‡U‡bkb g~jZ Kve©‡b †`Lv hvq, wmwjK‡b wKQz wKQz †`Lv hvq| 07. ivmvqwbKfv‡e BDwiqv‡K ejv nq? [MAT. 2001-2002] A. A¨vwg‡bv Gwm‡Wi A¨vgvBW B. A¨v‡gvwbqvg Kve©‡bU C. Kve©wbK Gwm‡Wi WvB A¨vgvBW D. WvB A¨vwg‡bv Kve©b g‡bv·vBW mwVK DËi: C. Kve©wbK Gwm‡Wi WvB A¨vgvBW e¨vL¨v: BDwiqvi ivmvqwbK bvg- A¨v‡gvwbqvg Kve©v‡gU ev Kve©vgvBW ev Kve©wbK Gwm‡Wi WvB A¨vgvBW| hvi ms‡KZ H2N – CO – NH2. DAT 01. •Re I A‣Re †h․‡Mi bv‡gi cÖeZ©K n‡”Q- [DAT. 2004-05] A. †fvjvi B. ivBwj C. kx‡j D. ev‡R©wjqvm mwVK DËi: D. ev‡R©wjqvm e¨vL¨v: See Concept-01 CONCEPT 02 •Re †h․‡Mi msKiY, eÜb‡KvY I eÜb‣`N¨© mg‡hvRx eÜb e¨vL¨vi ZË¡: (i) mg‡hvRx e܇bi B‡jKUªbxq ZË¡ (weÁvbx jyBm, 1916) (ii) AvaywbK Awe©Uvj Awaµgb ZË¡ msKixKiY, eÜb •`N¨©, eÜb †KvY I R¨vwgwZK AvK…wZ: mg‡MvÎxq †kªYx msKiY msKwiZ AiweUvj PwiÎ (s) eÜb •`N¨© (nm) eÜb †KvY wPÎ AvK…wZ A¨vj‡Kb sp3 4wU 25% C–C : 0.154 C–H: 0.110 109.5 C H H H H PZz¯ÍjKxq A¨vjwKb sp2 3wU 33.3% C=C: 0.134 C–H: 0.109 120 C = C H H H H mgZjxq w·KvYvKvi A¨vjKvBb sp 2wU 50% CC: 0.120 C–H: 0.106 180 HC CH mij ‣iwLK †R‡b ivLv fv‡jv: †ebwR‡b wØeÜb _vK‡jI Gi eÜb •`N¨© 0.139nm

CHEMISTRY PLUS •Re imvqb 531 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 GK bR‡i A¨vwj‡dwUK gy³ wkKj nvB‡WªvKve©b bvg cÖPwjZ bvg cÖPwjZ A_© mvaviY ms‡KZ D`vnib Kve©b-Kve©b eÜb msKiY A¨vj‡Kb c¨vivwdb Kg mwµq/Avmw³nxb CnH2n+2 B‡_b (CH3 – CH3) C–C ( 0) sp3 A¨vjwKb A‡jwdbm †Zj Drcv`bKvix CnH2n Bw_b (CH2 = CH2) C = C ( 1) sp2 A¨vjKvBb A¨vwmwUwjbm A¤øxq CnH2n-2 B_vBb (CH CH) C C ( 2) sp REAL TEST ANALYSIS OF PREVIOUS YEAR QUESTIONS STEP 01 ANALYSIS OF GENERAL UNIVERSITY QUESTION DU 01. †Kvb †h․MwU‡Z G‡Ki AwaK ai‡bi msKwiZ Kve©b Av‡Q? [DU-Ka.2016-17] A. Cyclohexane B. Benzene C. Toluene D. n-butane mwVK DËi: C. Toluene e¨vL¨v: Toluene Gi ms‡KZ CH3sp3 sp2 †_‡K †`Lv hvq G‡Z CH3- g~j‡Ki Kve©bwU sp3 msKwiZ wKš‧ †ebwRb ej‡qi g~jKwU sp2 msKwiZ KviY ej‡qi Kve©b cigvYywU‡Z Kve©b -Kve©b wØeÜb Av‡Q| 02. wb‡Pi †Lvjv wkKj †h․M¸‡jvi †KvbwU‡Z me¸‡jv eÜb wmMgv? [DU. 06-07] A. C10H2O B. C10H22 C. C10H18 D. C10H20O mwVK DËi: B. C10H22 e¨vL¨v: A¨vj‡K‡bi mKj eÜbB wmMgv eÜb| ZvB C10H22 Gi me¸‡jv wmMgv eÜb| mvaviY ms‡KZ: CnH2n+2 JnU 01. A¨vjKvB‡bi mvaviY ms‡KZ †KvbwU? [JnU. 2015-16] A. CnH2n B. CnH2n+2 C. CnH2n–2 D. C2nHn–2 mwVK DËi: C. CnH2n–2 02. CH3OH †h․‡M O Gi nvBweªWvB‡Rkb mvaviYZ- [JnU. 2014-15] A. sp1 B. sp2 C. sp3 D. sp3 d mwVK DËi: C. sp3 e¨vL¨v: CH3– O –H Gi g‡a¨ 2wU eÜb I `yB †Rvov wbtm½ B‡jKUªb hyMj we`¨gvb| myZivs 2 + 2 lone pair = sp3 JU 01. CH4 Gi gv‡S wK ai‡bi eÜb †`Lv hvq? [JU-A, Set-D. 2019-20] A. AvqwbK B. mg‡hvRx C. nvB‡Wªv‡Rb D. avZe mwVK DËi: B. mg‡hvRx 02. wb‡Pi †Kvb †h․‡Mi C-cigvYy‡Z sp2 msKiY N‡U? [JU-A, Set-A. 2019-20] A. CH –CH3 B. CH3–CCH C. CH3CH2CH2OH D. CH2 = CH2 mwVK DËi: D. CH2 = CH2 03. †Kvb †h․‡M - eÜb †bB? [JU-D,Set-C: 2018-19] A.C2H6 B. HCHO C. C2H2 D. HCN mwVK DËi: A.C2H6 e¨vL¨v: A¨vj‡K‡b ïay wmMgv eÜb _v‡K| 04. CC eÜb `~iZ¡ †KvbwUi †ÿ‡Î me‡P‡q Kg? [JU-D7.2017-18, DU. 7clg,Unit-A:2018-19] A. ‡cÖv‡cb B. B‡_b C. Bw_b D. B_vBb mwVK DËi: D. B_vBb e¨vL¨v: eÜb •`‡N©¨i µg: A¨vjKvBb < ‡ebwRb < A¨vjwKb < A¨vj‡Kb| 05. B‡_‡b H-C-C ‡Kv‡Yi cwigvY : [JU. 2009-2010] A. 109.5 B. 120 C. 180 D. 90 mwVK DËi: A. 109.5 RU 01. 2-wg_vBj-2 weDUvbj AYy‡Z KZwU Kve©b-Kve©b eÜb _v‡K? [RU. 2019-20] A. 2 B. 3 C. 4 D. 5 mwVK DËi: C. 4 e¨vL¨v: H HCCC CH H OH H H H CH3 H 02. CH3CH = CH2 nvB‡WªvKve©‡bi evg w`K †_‡K cÖ_g I wØZxq Kve©‡b wK wK ai‡bi nvBweªWvB‡Rkb †`Lv hv‡e? [RU. 2019-20] A. sp3 , sp B. sp3 , sp2 C. sp2 , sp2 D. sp, sp2 mwVK DËi: B. sp3 , sp2 e¨vL¨v: sp3 sp2 sp 2 CH3CH = CH2 03. SN 1 wewµqvi †K․kj Kv‡e©vwbqvg Avqb ga¨Kvi Kve©b cigvYy‡Z Kx ai‡bi msKiY _v‡K? [RU-H.2016-17] A. sp2 B. sp3 C.sp D. †KvbwUB bq mwVK DËi: A. sp2 e¨vL¨v: SN 1 wewµqvq 3 Kv‡e©vwbqvg Avqb `ªæZ wewµqvq AskMÖnY K‡i| R3C + †_‡K †`Lv hvq G‡Z we`¨gvb msKi AiweUvj msL¨v x = 3 AZGes, msKiY cÖK…wZ n‡e sp2 | 04. A¨vjwK‡bi Kve©b-Kve©b •`N©¨ KZ? [RU. 11-12, JU. 11-12, HSTU. 11-12] A. 0.121nm B. 0.134 nm C. 0.154 nm D. 0.164 nm mwVK DËi: B. 0.134 nm CU 01. CH2 = HC – CH = CH – CH2– CHO †h․MwU‡Z †gvU - e܇bi msL¨v KZ? [CU. 2019-20] A. 4 B. 3 C. 2 D. 1 mwVK DËi: B. 3 02. †ebwRb AYyi C-cigvYy †Kvb& ai‡Yi? [CU. 11-12; RU. 12-13] A. sp msKwiZ B. sp2 msKwiZ C. sp3 msKwiZ D. AmsKwiZ E. me¸‡jv mwVK DËi: B. sp2 msKwiZ 03. wZbwU Kve©b cigvYyhy³ A¨vj‡K‡b nvB‡Wªv‡Rb cigvYyi msL¨v KZ?[CU. 2009-10] A. wZbwU B. PviwU C. QqwU D. bqwU E. AvUwU mwVK DËi: E. AvUwU e¨vL¨v: A¨vj‡K‡bi mvaviY ms‡KZ CnH2n+2 wZb Kve©b wewkó A¨vj‡K‡bi ms‡KZ C3H8 Ges Bnvi bvg †cÖv‡cb| KU 01. †ebwRb P‡µi Kve©b-Kve©b e܇bi •`N¨©- [KU. 2007-08; JUST.2015-16; BUTex.2012-13; RU.2009-10, 2012-13, SAU. 2014-15 wm.‡ev. 2017, Xv.‡ev. 2016] A. 0.129nm B. 0.139nm C. 0.159nm D. 0.169nm mwVK DËi: B. 0.139nm e¨vL¨v: ‡ebwR‡b Kve©b-Kve©b wØeÜb we`¨gvb Ges Gi eÜb •`N¨© = 0.139nm

532 •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 SUST 01. HCCCH=CH2 †h․MwUi C-C GKK eÜbwU‡Z Kve©‡bi †h msKiY N‡U Zv n‡jv- [SUST.2008-2009] A. sp-sp3 B. sp2 -sp3 C. sp-sp2 D. sp3 -sp3 mwVK DËi: C. sp-sp2 MBSTU 01. Kve©wbj g~j‡K C-cigvYy‡Z †Kvb cÖKv‡ii nvBweªWvB‡Rkb N‡U? [MBSTU-C,Set-2:2018-19] A. sp B. sp2 C. sp3 D. sp3 d mwVK DËi: B. sp2 e¨vL¨v: Kve©wbj (– O || C– ) g~j‡Ki Kve©b cigvYy‡Z wZbwU wmMgv eÜb _v‡K ZvB sp2 msKwiZ Ae¯
vq _v‡K| BSMRSTU 01. Kve©b-Kve©b wÎe܇bi •`N©¨- [BSMRSTU-C.17-18; JU.09-10; RU.07-08] A. 1.53Å B. 1.38 Å C. 1.2 Å D. 1.39 Å mwVK DËi: C. 1.2 Å DU-7Clg 01. C6H5CH3 AYy‡Z I -e܇bi msL¨v h_vµ‡gÑ [DU-7Clg. 2019-20] A. 15, 3 B. 12, 3 C. 9, 6 D. 6, 3 mwVK DËi: A. 15, 3 e¨vL¨v: UjyB‡bi -eÜY = †gvU cigvYy msL¨v = 6 + 5 + 1 + 3 = 15 Ges †gvU -eÜb msL¨v = 3 (†h‡nZz, 3wU wØ-eÜb Av‡Q) BUTex 01. wbgœwjwLZ †h․M¸wji †KvbwU‡Z Kve©b-Kve©b wÎeÜb Av‡Q? [BUTex 2013-14; DU. 2005-06] A. C2H4 B. C4H4 C. C4H8 D. C5H10 mwVK DËi: B.C4H4 STEP 03 ANALYSIS OF ENGINEERING & BUTex QUESTION BUET 01. digvjwWnvBW (CH2O) Gi Kve©b cigvYy‡Z wb‡gœi †Kvb msKi AiweUvjwU e¨envi n‡q‡Q? [BUET: 2005-2006] A. sp B. sp2 C. sp3 D. d2 sp3 mwVK DËi: B. sp2 e¨vL¨v: digvjwWnvB‡Wi MvVwbK ms‡KZ H– O || C–H GLv‡b Kve©‡bi mv‡_ †gvU wZbwU wmMgv eÜb Av‡Q| ZvB Kve©‡bi msKiY n‡e sp2 =1+2=3 KUET 01. †ebwR‡b eÜb mg~n n‡jv- [KUET 2018-19] A. 6 + 13 B. 6 + 6 C. 6 + 3 D. 12 + 3 mwVK DËi: D. 12 + 3 02. (i) C2H4 (ii) C2H2 (iii) C6H6 (iv) C2H6 (v) C6H5Cl Dc‡ii †h․Mmg~‡n CC eÜb •`‡N©¨i Aatµg avivwU njÑ [KUET: 2018-19] A. IV > V > III > I > II B. IV > III > V > I > II C. II > I > III > V > IV D. II > I > V > III > IV E. IV > I > II > V > III mwVK DËi: B. IV > III > V > I > II e¨vL¨v: CC eÜb •`N©¨ (nm) : C2H6 (0.154); C6H6 (0.139); C6H5Cl (0.6) CONCEPT 03 mg‡MvÎxq †kªYx I Kvh©Kixg~jK Item-01: mg‡MvÎxq †kªYxi •ewkó¨: mvaviY ms‡KZ wbw`©ó Kvh©Kix g~jK `ywU AvbweK ms‡K‡Z wgw_wjb g~j‡Ki cv_©K¨ GKB ivmvqwbK ag©| ms‡KZ †`‡L mg‡MvÎxq †kÖYx wPwýZKiY: ms‡KZ mg‡MvÎxq †kÖYx ms‡KZ mg‡MvÎxq †kÖYx CnH2n+2 A¨vj‡Kb CnH2nO A¨vjwWnvBW, wK‡Uvb CnH2n A¨vjwKb, mvB‡K¬v A¨vj‡Kb CnH2nO2 Kve©w·wjK GwmW, G÷vi CnH2n-2 A¨vjKvBb, mvB‡K¬v A¨vjwKb, WvB-Bb CnH2n+2N m¤ú„³ A¨vwj‡dwUK A¨vwgb CnH2n+2O A¨vj‡Kvnj, B_vi CnH2n+1 OH A¨vj‡Kvnj D`vniY: C3H8O GB †h․MwU †_‡K †Kvb Kvh©Kix g~jK cvIqv hvq| CnH2n+2O C3H8O A¨vj‡Kvnj (CH3CH2CH2OH) B_vi (CH3OCH2CH3) mg‡MvÎxq †kÖwYi mvaviY ms‡KZ †ei Kivi wbqg: A¨vj‡Kbmg~‡ni mvaviY ms‡KZ CnH2n+2 [n = 1, 2, 3, ...], A¨vjwKbmg~‡ni mvaiY ms‡KZ CnH2n [n = 2, 3, ...]| GLb cÖkœ n‡jv, Òm¤ú„³ A¨vj‡Kvnjmg~‡ni mvaviY ms‡KZ †KvbwU?Ó (i) CnH2n+2OH (ii) CnH2nO (iii) CnH2n+2O (iv) CnH2n+1O G‡ÿ‡Î gyL¯
 Kiv QvovB Avgiv mvaviY ms‡KZ †ei Ki‡Z cvwi1g K_v :wb‡R‡`i cwiwPZ GKwU D`vniY bvI CH3CH2CH2OH ev cÖcvbj| 2q K_v :ms‡KZ‡K `yB ev Z‡ZvwaK As‡k fvM K‡i bvI| R g~jK [CH3 (01) CH2CH2] [OH (02) ] 3q K_v :cÖ_g AskwU R g~jK, hvi mvaviY ms‡KZ CnH2n+1 hv Avgv‡`i Rvbv| 4_© K_v :mvaviY ms‡KZ wbY©q- CnH2n+1OH CnH2n+2O myZivs, cÖkœwUi DËi n‡jv Ackb (iii)| Gfv‡e gyL¯
 Kiv QvovI mvaviY ms‡KZ †ei Kiv m¤¢e| Note: cÖwZ P‡µi Rb¨ Ges cÖwZ cvB e܇bi Rb¨ H msL¨v `yB K‡i Kg‡e| d‡j, (i) GK PvwµK Alkane Gi mvaiY ms‡KZ: CnH2n+2H2 C6H12 CnH2n (ii) GKwU wØ-eÜbhy³ Alcohol Gi mvaviY ms‡KZ- CnH2n+2OH2 CnH2nO ; H2C = CHCH2OH [C3H6O]

CHEMISTRY PLUS •Re imvqb 533 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: Kvh©Kix g~jK ev wµqv`k©xg~jK ev †kÖYxwb‡`©kK (FUNCTIONAL GROUP): mg‡MvÎxq †kªwY Kvh©Kix g~j‡Ki bvg g~j‡Ki ms‡KZ AMÖMY¨ wb‡`©kK g~j‡Ki MvVwbK ms‡KZ †h mv‡j G‡m‡Q 1. Kve©w·wjK GwmW Kve©w·wjK GwmW ev d¨vwU GwmW g~jK –COOH COH O [MAT. 2011-12, 2007-08, BSMRSTU. 2011-12] 2. mvj‡dvwbK GwmW mvjdvwbwjK GwmW g~jK –SO3H SOH O O 3. GwmW n¨vjvBW GwmW n¨vjvBW g~jK –COX CX O 4. A¨vbnvBWªvBW A¨vbnvBWªvBW g~jK –COOCO– COC O O [CU. 2002-03, 2003-04, CUET. 2013-14, JU. 2009-10, RU. 2011-12, BSMRSTU. 2014-15, MBSTU. 2011-12, 2014-15] 5. G÷vi G÷vi g~jK –COOR COR O [CU. 2006-07, 2012-13, RU. 2008-09, BUTex. 2008-09] 6. GwmW A¨vgvBW A¨vgvB‡Wv g~jK –CONH2 CN O H H [JU. 2010-11, 2011-12, 2009-10, RU. 2008-09, CUET. 2009-10, BSMRSTU. 2012-13, 2015-16, gv`ªvmv †ev. 2017] 7. A¨vjwWnvBW A¨vjwWnvBW g~jK –CHO CH O [DU. 2003-04, JU. 2009-10, 2011-12, 2014-15, RU. 2008-09, HSTU. 2012-13, CU. 2006-07] 8. wK‡Uvb Kv‡ev©wbj ev wK‡Uv g~jK –CO– C O [MAT. 2018-19, 2008-09, BSMRSTU. 2014-15, HSTU. 2012-13] 9-1. mvqvbvBW mvqvbvBW ev bvBUªvBj g~jK –CN –CN 9-2. AvB‡mvmvqvbvBW AvB‡mvmvqvbvBW g~jK –NC –N=C= 9-3. AvB‡mv _v‡qvmvqv‡bU AvB‡mv _v‡qvmvqv‡bU g~jK –NCS –N=C=S– 10-1. A¨vj‡Kvnj 3 Uviwmqvwi A¨vj‡Kvnj g~jK COH COH [JU. 2010-11] 10-2. A¨vj‡Kvnj 2 †m‡KÛvwi A¨vj‡Kvnj g~jK =CHOH COH H [RU. 2007-08, JU. 2010-11, CUET. 2005-06, HSTU. 2012- 13] 10-3. A¨vj‡Kvnj 1 cÖvBgvwi A¨vj‡Kvnj g~jK –CH2OH COH H H [RU. 2007-2008; MAT. 2004- 05, DAT. 2004-05, HSTU. 2011-12, JnU. 2011-12, JU. 2007-08] 10-4. _v‡qvj _v‡qvjg~jK SH SH [BUET. 2019-20] 11. A¨vjKvBj A¨vwgb A¨vwg‡bv g~jK –NH2 N H H [MAT. 2004-05] 12. B_vi B_vi g~jK R–O–R [CU. 2008-09, CVASU. 2018- 19, JU. 2010-11, CUET. 2003- 04, HSTU. 2012-13, 2011-12] 13. A¨vjwKb A¨vjwKb ev A‡jwdb g~jK [JU. 2009-10, CUET. 2005-06] 14. A¨vjKvBb A¨vjKvBb ev A¨vwmwUwjb g~jK –CC– –CC– [HSTU. 2010-11, JU. 2010-11, CUET. 2005-06] 15. n¨v‡jv‡Rb n¨vjvBW X X 16. bvB‡Uªv †h․M bvB‡Uªv g~jK –NO2 17. A¨vjKvBj A¨vjKvBj g~jK –R R– [JU. 2010-11] g‡b ivLvi wUªKm : Dc‡ii QKwU‡K Lye mn‡RB wb‡Pi µg Abymv‡i GKUz wPšÍv Ki‡jB mgvavb n‡q hvq| GwmW (COOH, SO3H) > GwmW RvZK (COX, (CO)2O, COOR, CONH2) > Bond (CN, NC) > = Bond (CHO, > CO) > Bond (OH, SH, NH2)

534 •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 Short Ans Question SAQWRITTEN SUGGESTION BAQ Broad Ans Question cÖkœ-01: Kvh©Kix g~jK (Functional Group) Kx? [P.‡ev. 2015; iv.‡ev. 2019; Kz.‡ev. 2016, 2019; iv.‡ev. 2017] DËi : †Kvb •Re †h․‡Mi AYy‡Z Dcw¯
Z †h cigvYy ev cigvYy‡Mvôx A_ev wPý D³ †h․‡Mi mg‡MvÎxq †kÖwYi cwiPq enb K‡i Ges mKj ivmvqwbK ag© Kvh©Kifv‡e wbqš¿Y K‡i Zv‡K †h․MwUi Kvh©Kix g~jK ev wµqvkxj g~jK ev wµqv`k©x MÖæc e‡j| cÖkœ-02: wb¤œwjwLZ mg‡MvÎxq †kÖYx¸wji Kvh©Kix g~jK mg~‡ni MvVwbK ms‡KZ wjL| [CUET. 2005-09] (a) A¨vjwKb (b) A¨vjKvBb (c) A¨vj‡Kvnj (d) A¨vjwWnvBW (e) G÷vi (f) B_vi| DËi : Concept-03, Item-02 Gi PvU© jÿ¨ Ki| cÖkœ-03: wb‡¤œv³ †h․M¸wji Kvh©Kixg~jK wjL: [BUTex. 2007-08] (a) weDUvbj (b) †eb‡RvwqK GwmW (c) digvjwWnvBW DËi: (a) OH (b) COOH (c) CHO cÖkœ-04: wb¤œwjwLZ †h․M¸wji MvVwbK ms‡KZ wjL? [RUET. 2019-20] (a) _v‡qv A¨vwmUvgvBW (b) cUvwmqvg cvig¨v½v‡bU DËi : (a) CH3C || S NH2 ; (b) K +O – – Mn = O O O REAL TEST ANALYSIS OF PREVIOUS YEAR QUESTIONS STEP 01 ANALYSIS OF GENERAL UNIVERSITY QUESTION DU 01. GjvBj Av‡qvWvB‡Wi ms‡KZ wb‡`©k Ki- [DU.2009-2010] A. CH3-CH = CH2I B. CH2 = CH- CH2I C. CH2 CH- CH2I D. CH2I –CHI-CH3 mwVK DËi: B. CH2= CH- CH2I e¨vL¨v: GKwU Kve©b Kve©b wØeÜbhy³ wZb Kve©b wewkó g~jK †K A¨vjvBj g~jK e‡j| hvi ms‡KZ CH2=CH–CH2– A_v©r GjvBj Av‡qvWvB‡Wi ms‡KZ CH2=CH–CH2I JnU 01. wb‡Pi †Kvb Kvh©Kix g~jK Gi mwµqZv m‡e‡P‡q †ekx? [JnU-Ka. 2016-17] A. –SH B. C = O O C. –C N D. –COOH mwVK DËi: D. –COOH e¨vL¨v: Kvh©Kix g~j‡Ki mwµqZvµg: –COOH > –CN > –CO– > –SH JU 01. Uviwkqvix A¨vj‡Kvn‡ji Kvh©Kix g~jK n‡jv- [JU. 2010-11] A –CH2OH B. COH C. =CHOH D. ‡KvbwUB bq mwVK DËi- B. COH e¨vL¨v: g‡b ivL‡e, cÖvBgvwi A¨vj‡Kvn‡j 1wU, ‡m‡KÛvwi A¨vj‡Kvn‡j 2wU Ges Uviwkqvix A¨vj‡Kvn‡j 3wU GKK eÜb ev nvZ dvKv _v‡K| 02. wb‡gœi †KvbwU 2°-A¨vwgb? [JU.2009-2010] A. (CH3)2NH B. (CH3)2CHNH2 C. C6H5-NH2 D. CH3NH2 mwVK DËi: A. (CH3)2NH e¨vL¨v: HNR H (1) RNR H (2) RNR R (3) RN + R R R (†KvqvU©vibvix) 04. Kvh©Kvix g~j‡Ki AMÖvwaKvi µg Abymv‡i wb‡gœi †Kvb g~j‡Ki Ae¯
vb me©wb‡gœ? [JU. 09-2010] A. mvqv‡bv g~jK B. A¨vj‡Kvnj g~jK C. wK‡Uvb g~jK D. A¨vjwWnvBW g~jK mwVK DËi: B. A¨vj‡Kvnj g~jK e¨vL¨v: Kvh©Kix g~j‡Ki AMÖvwaKvi µgmvqv‡bv g~jK > A¨vjwWnvBW g~jK > wK‡Uvb g~jK > A¨vj‡Kvnj g~jK CU 01. RCH2OH †h․‡Mi Kvh©Kix g~j‡Ki bvg wK? [CU. 2019-20] A. 1 A¨vj‡Kvnj B. 2 A¨vj‡Kvnj C. B_vi D. A¨vjwWnvBW mwVK DËi: A. 1 A¨vj‡Kvnj KU 01. (CH3)3C-CH2-CH(CH3)2 AYy‡Z cÖvBgvwi (1°), †m‡KÛvwi (2°), Uviwkqvix (3°) I †KvqvUvibvix (4°) Kve©b cigvYyi msL¨v h_vµ‡g- [KU-A.2017-18] A. 1,1,2 I 5 B. 4,1,2 I 2 C. 5,1,1 I 1 D. 5,1,1 I 2 mwVK DËi: C. 5,1,1 I 1 e¨vL¨v: CH3CCH2CH CH3 CH3 CH3 CH3 Uviwmqvwi (3) Kve©b cÖvBgvwi (1) Kve©b †m‡KÛvix (2) Kve©b †KvqvUvibvwi (4) Kve©b 02. wb‡Pi †KvbwU A¨vbnvBWªvBW g~jK Gi MvVwbK ms‡KZ? [KU. 2015-16] A. -CO- B. C-O-O-H C. -C-O- R D. CO-O-CO mwVK DËi: D. CO-O-CO CVASU 01. COC MvVwbK ms‡KZ n‡”Q- [CVASU:2018-19] A. Góv‡ii Kvh©Kix g~j‡Ki B. GbnvBWªvB‡Wi Kvh©Kix g~j‡Ki C. B_v‡ii Kvh©Kix g~j‡Ki D. wK‡Uv‡bi Kvh©Kix g~j‡Ki mwVK DËi: C. B_v‡ii Kvh©Kix g~j‡Ki STEP 02 ANALYSIS OF SCIENCE & TECHNOLOGY QUESTION SUST 01. wb‡Pi †Kvb †h․MwU A¨vbnvBWªvBW? [SUST.2010-2011; h.†ev: 2017] A. H3C-CO-CC2H5 B. H3C -CO - O - CO - CH3 C. H3C - CO - C2H3 D. H3C - CH - CO - H mwVK DËi: B. H3C -CO - O - CO - CH3 e¨vL¨v: GwmW A¨vbnvBWªvB‡Wi mvaviY ms‡KZ: RCOOCOR

CHEMISTRY PLUS •Re imvqb 535 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 6C 5C 4C 3C C 2C 1C kvLvi bv¤^vi avc Ñ1 kvLvi bvg avc Ñ2 g~j wkK‡ji bvg avc Ñ3 5CH3 4CH2 3CH2 2CH 1CH3 CH3 kvLvi bv¤^vi avc Ñ1 kvLvi bvg avc Ñ3 g~j wkK‡ji bvg avc Ñ4 WvB/UªvB/†UUªv avc Ñ2 6CH3 5CH2 4CH2 3CH 2CH 1CH3 CH3 CH3 bvgt 2,3 WvB wg_vBj‡n‡·b kvLvi bv¤^vi-bvg avc Ñ1 kvLvi bv¤^vi-bvg avc Ñ2 g~j wkK‡ji bvg avc Ñ3 6CH3 5CH2 4CH2 3CH 2C 1CH3 bvgt 3- B_vBj -2- wg_vBj‡n‡·b C2H5 CH3 STEP 04 ANALYSIS OF MEDICAL & HSC QUESTION MAT 01. wb‡Pi †KvbwUi Kvh©Kix g~jK mwVK? [MAT. 2018-19] A. wK‡Uvb-CO- B. G÷vi-COOH C. •Re GwmW-COOR D. A¨vj‡Kb bvBUªvBj-CONH2 mwVK DËi: A. wK‡Uvb-CO 02. wb‡¤œi †KvbwU Kve©w·‡ji Kvh©Kix g~jK? [MAT. 2011-12, 2007-08] A. OH B. OR C. NH2 D. COOH mwVK DËi: D. COOH 03. A¨vj‡Kvn‡ji Kvh©Kix g~jK n‡”Q- [MAT. 2004-05, DAT. 2004-05] A. NH2 B. COOH C. OH D. OR mwVK DËi: C. OH CONCEPT 04 bvgKiY I MvVwbK ms‡KZ Item-01: bvgKi‡Yi c×wZmg~nc×wZ Aci bvg Z_¨/DcvË mvaviY c×wZ cÖPwjZ ev Trivial †gvU Kv©eb msL¨v‡K a‡i bvgKiY Kiv nq D™¢yZ c×wZ RvZK (Derived) G c×wZ cÖvq e¨envi nq bv e‡jB P‡j IUPAC ‡R‡bfv c×wZ mev©waK cÖPwjZ c×wZ Item-02: bvgKiY: †R‡bfv ev IUPAC c×wZt GB c×wZwU mev©waK cÖPwjZ| GB c×wZwU‡K Avgiv KZ¸‡jv av‡c AvqZ¡ Ki‡Z cvwi| A¨vj‡Kb Gi bvgKiY| A¨vj‡Kb Gi RvZK Gi bvgKiY| A¨vjwKb I A¨vjKvB‡bi bvgKiY| †ebwR‡bi RvZ‡Ki bvgKiY| A¨vj‡K‡bi bvgKiYt me©cÖ_g me‡P‡q j¤^v Kve©b wkKjwU‡K evQvB Ki‡Z n‡e| D`vniYt (D`vniYwU‡Z hw`I mivmwi †`L‡j 5wU Kve©b g‡b nq, wKš‧ me‡P‡q j¤^v wkKj wn‡me Ki‡j Zv 6 Kve©‡bi n‡e|) j¤^v wkK‡ji Kve©b¸‡jv‡K msL¨v Øviv Ggbfv‡e wPwýZ Ki‡Z n‡e †hb kvLvwU Kg b¤^i cvq (kvLv GKwU n‡j) A_ev, kvLv¸‡jvi bv¤^v‡ii †hvMdj Kg nq (GKvwaK kvLv n‡j)| D`vniYt 5 1 CH3– 4 2 CH2– 3 3 CH2– 2 4 CH– 1 5 CH3 (D`vniYwU‡Z bv¤^vi¸‡jv wb‡j kvLvwU 2 b¤^i cvq, Ges wb‡Pi bv¤^vi¸‡jv wb‡j kvLvwU 4 b¤^i cvq| ZvB 2bv¤^viwU wb‡Z n‡e)| CH3 D`vniYt (kvLv GKvwaK n‡j) 5 1 CH3– 4 2 CH2– 3 3 CH– 2 4 CH– 1 5 CH3 (D`vniYwU‡Z bv¤^vi¸‡jv wb‡j kvLv¸‡jvi bv¤^v‡ii †hvMdj 2+3 =5 nq wKš‧ wb‡Pi bv¤^vi¸‡jv wb‡j kvLv¸‡jvi bv¤^v‡ii †hvMdj 3+4= 7 nq| ZvB Dc‡ii bv¤^viwU wb‡Z n‡e|) CH3 CH3 GLb A¨vj‡K‡bi bvgKi‡Yi †kl avc| hw` GKwU g~jK _v‡K Z‡e, D`vniYt bvgt 2 wg_vBj †c‡›Ub hw` GKvwaK (GKB g~jK) _v‡K Z‡e, D`vniY 1t D`vniY 2t 6CH3 5CH2 4CH2 3CH2 2C 1CH3 bvgt 2,2 WvB wg_vBj‡n‡·b CH3 CH 3 3 3 hw` GKvwaK (wfbœ g~jK) _v‡K Z‡e, hZ ai‡bi kvLv _vK‡e, ZZevi kvLvi bv¤^vi-bvg w`‡Z n‡e| Avi G‡ÿ‡Î hvi bv¤^vi Kg Zv‡K bq eis Bs‡iRx eY©gvjv Abyhvqx †h eY©wU Av‡M Av‡m, †mB g~jK‡K Av‡M w`‡Z n‡e| D`vniY: (hw`I Methyle g~jK 2 bs Kve©‡b Ges Ethyle g~jK 3 bs Kve©‡b hy³, ZviciI Bs‡iRx eY©gvjv Abyhvqx E, M Gi c~‡e© _vKvi Kvi‡Y B_vBj‡K Av‡M ivLv n‡q‡Q|)

536 •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 bvgt 2,2 WvB‡K¬v‡ivB_vbj-1 Cl2CHCH2 OH (-OH>-Cl) 2 1 H3C CH CH2 CH2 COOH (-COOH)> -OH OH 5 4 3 2 1 4-Hydroxy Pentanoic Acid-1 H3C C CH2 CH2 Br (C=O> -Br) 1 2 3 4 O 4-Bromobutanone-2 H3C CH CH2 CH2 CH CH3 (-NH2>Cl) 4 3 2 1 2-Amino-5-Clorohexane Cl NH2 6 5 GKvwaK Kvh©Kix g~jKm¤^wjZ bvgKiYtÑ Kvh©Kix g~j‡Ki AMÖvwaKvi µ‡g bvgKiY Ki‡Z n‡e| GKvwaK Kvh©Kix g~jK hy³ _vK‡jt A¨v‡iv‡gwUK †h․‡Mi †ÿ‡Î †ebwRb ej‡q cÖwZ¯
vcK `yBwU wfbœ n‡j AwaK mwµq cÖwZ¯
vcKwU‡K †ebwRb ej‡qi RbK (Parent) wnmv‡e aiv nq Ges Zvi bvgB g~j bvg wnmv‡e e¨eüZ nq| wØZxq cÖwZ¯
vc‡Ki bvg g~j bv‡gi c‡i emv‡bv nq| †ebwRb ej‡qi mwµqZvi µ‡gi †ÿ‡Î COOH > SO3H > CONH2 > CHO > CN > =CO > CH2OH > CH3 > OH > NH2 > NO2 > –X cÖwZ¯
vcK `yBwUB n¨v‡jv‡Rb n‡j, †m‡ÿ‡Î cÖwZ¯
vc‡Ki Bs‡iwR bv‡gi eY©gvjvi µg Abymv‡i msL¨vwqZ n‡e| †h cÖwZ¯
vc‡Ki bv‡gi Av`¨ÿi Bs‡iwR eY©gvjvi Av‡M _v‡K †m cÖwZ¯
vcKwU †h Kve©‡bi mv‡_ mshy³ Zv‡K 1 msL¨v Øviv wPwýZ K‡i Aci cÖwZ¯
vcK‡K m¤¢ve¨ me©wb¤œ msL¨v Øviv wPwýZ Ki‡Z n‡e| Short Ans Question SAQWRITTEN SUGGESTION BAQ Broad Ans Question cÖkœ-01| wb¤œewY©Z †h․M¸wji c~Y© MvVwbK ms‡KZ wjL: [RUET. 2010-11] (i) mvB‡K¬v‡n·v‡bvb [JnU. 2018-19] (ii) 2-‡cw›Ub-3-Aj (iii) pent-3-en-1-yne [JnU. 2018-19] (iv) 3-methyl butanol-2 [JnU. 2018-19] DËi : (i) C O (ii) HCCC = CCH H H OH H H H H H (iii) HCC = CC CH H H H H H (iv) HCCCCH H H H CH3H OH H H cÖkœ-02| wb¤œwjwLZ AvYweK ms‡KZ¸‡jvi ivmvqwbK bvg wjL: [BUTex. 2003-04, 2000-01, RUET. 2005-06, CUET. 2007-08] (i) C 5 H3–C 4 H2–C 3 O–C 2 C 1 H (ii) (C 5 H3)2C 4 HC 3 H2C 2 HBrC 1 OOH (iii) H3CHC = HCH2CCH3 (iv) CH3CH = CHCH2CH3 1 2 3 4 5 CH3 (v) CH2 = CHCCH3 O (vi) CH3CHCOOH 4 3 2 1 3 2 1 NH2 (vii) CH3CHCH3 CH3 DËi : DËi : (i) †c›U-1-AvBb-3-Ib| (ii) 2-‡eªv‡gv-4-wg_vBj †c›Uv‡bvwqK GwmW (iii) 2-Pentene (iv) 2-wg_vBj †cw›Ub-2 (v) weDU-3-Bb-2-Ib (vi) 2-A¨vwg‡bv †cÖvcv‡bvwqK GwmW (vii) iso-butane cÖkœ-03| wb‡Pi Q‡Ki B_vimg~‡ni bvg IUPAC I wUªwfqvj c×wZ‡Z wjL: [RUET. 2005-06, 2003-04] CH3CCH3, CH3OC2H5, C2H5OC2H5, CH3OC3H7 DËi : B_vi IUPAC wUªwfqvj CH3OCH3 wg‡_vw· wg‡_b WvB wg_vBj B_vi CH3OC2H5 wg‡_vw· B‡_b B_vBj wg_vBj B_vi C2H5OC2H5 B‡_vw· B‡_b WvB B_vBj B_vi CH3OC3H7 wg‡_vw· †cÖv‡cb wg_vBj †cÖvcvBj B_vi REAL TEST ANALYSIS OF PREVIOUS YEAR QUESTIONS STEP 01 ANALYSIS OF GENERAL UNIVERSITY QUESTION [A¨vj‡Kb] DU 01. IUPAC c×wZ‡Z wb‡¤œi †h․MwUi bvg wK? [DU. 2013-14] (CH3)3CCH2CH(CH3)2 A. 2,2,4-Trimethylpentane B. 2,4,4-Trimethylpentane C. Isopentane D. Neooctane mwVK DËi: A. 2,2,4-Trimethylpentane e¨vL¨v: CH3CCH2CHCH3 2,2,4-UªvBwg_vBj‡c‡›Ub| CH3 CH3 CH3 1 2 3 4 5 02. IUPAC c×wZ Abyhvqx wb‡Pi †h․MwUi bvg- [DU. 2005-06] CH3 CH2 CH2 CH3 CH3 CH CH2 CH CH2 CH3 1 2 3 4 5 6 7 A. 2- Methyl-4- Propyle hexane B. 2-n-propyl-4-methyl hexane C. 4-Ethyl-6-methyl heptane D. 4-Ethyl-2-methyl heptane mwVK DËi: D. 4-Ethyl-2-methyl heptane e¨vL¨v: CH3 CH2 CH2 CH3 CH3 CH CH2 CH CH2 CH3 1 2 3 4 5 6 7 IUPAC Name: 4-Ethyl-2-methyl heptane

CHEMISTRY PLUS •Re imvqb 537 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 03. IUPAC cÖYvjx‡Z 4, 5-WvBwg_vBj‡n·vBb-2 Gi MvVwbK ms‡KZ wjLv nq- [DU. 1997-98] A. CH3CHCHCH2C = CH CH3 CH3 CH3 CH3 B. CH3CHCHC CCH3 CH3 CH3 C. CH3CHC CCH3 CH2CH3 D. CH2 = CHC CCH3 mwVK DËi: B e¨vL¨v: CH3CHCHC CCH3 4,5-WvBwg_vBj‡n·vBb-2 CH3 6 5 4 3 2 1 CH3 CU 01. CH3CHCH2C(CH3)3 †h․MwUi bvg wK? [CU. 2014-15; DU.2013-14, 2008-09] C2H5 A. 2, 2, 4-UªvBwg_vBj †n‡·b B. 2-wg_vBj-4-tert-weDUvBj †c‡›Ub C. 2-B_vBj-1, 4, 4-UªvBwg_vBj †c‡›Ub D. 1-tert-weDUvBj 2-wg_vBj weD‡Ub E. 1-UªvBwg_vBj-3-wg_vBj weD‡Ub mwVK DËi: A. 2, 2, 4-UªvBwg_vBj †n‡·b e¨vL¨v: CH3 -CH-CH2 -C-CH3 CH2 CH3 CH3 CH3 (2,2,4-UªvBwg_vBj †n‡·b) 5 6 4 3 2 1 2 3 02. (CH3)4C A_ev CH3C(CH3)2CH3 †h․MwU IUPAC bvg- [CU-A. 2013-14, JU-D. 2009-10] A. Tetramethylcarbon B. n-pentane C. iso-pentane D. 2,2-dimethylpropane E. neo-pentane mwVK DËi: D. 2,2-dimethylpropane e¨vL¨v: CH3CCH3 †h․MwUi bvg- 2,2-WvBwg_vBj †cÖv‡cb CH3 CH3 3 2 1 DU 01. CH3–CH(C2H5)–CH2–CHBr–CHCl–CH3 (†h․MwUi IUPAC bvg n‡jv [DU. 2019-20, 2012-13] A. 2-†K¬v‡iv-3-†eªv‡gv-5-B_vBj ‡n‡·b B. 2-†K¬v‡iv-3-†eªv‡gv-5-wg_vBj ‡nc‡Ub C. 3-†eªv‡gv-2-†K¬v‡iv-5-B_vBj ‡n‡·b D. 3-†eªv‡gv-2-†K¬v‡iv-5-wg_vBj ‡nc‡Ub mwVK DËi: D. 3-†eªv‡gv-2-†K¬v‡iv-5-wg_vBj ‡nc‡Ub e¨vL¨v: CH3CHCH2CHCHCH3 (3-Bromo-2-chloro-5-methylheptane .) 5 4 3 2 1 CH2 6 CH3 7 Br Cl `xN© wkKj wbe©vP‡b mvZ Kve©‡bi †h․M GwU| Bs‡iRx eY©gvjvi µgvbymv‡i †eªvwgb Av‡M weavq G‡K Av‡M wjL‡Z n‡e| ZvB mwVK bvgKiY n‡e- 3- bromo-2-chloro-5-methyl heptane 02. IUPAC c×wZ‡Z (CH3)2CHCH2CH2Br [DU. 2007-08] A. 2-methyl-3-bromopropane B. 1-bromopentane C. 2-methyl-4-bromobutane D. 1-bromo-3-methylbutane mwVK DËi: D. 1-bromo-3-methylbutane e¨vL¨v: CH3CHCH2CH2Br 1-†eªv‡gv-3-wg_vBjweD‡Ub| CH3 4 3 2 1 JU 01. CH3CH(CH3)CH2Cl †h․MwUi IUPAC c×wZ‡Z bvg nj-[JU-A.13-14] A. weDUvBj †K¬vivBW B. †K¬v‡iv weD‡Ub C. 2-wg_vBj-1-†K¬v‡iv‡cÖv‡cb D. 3-†K¬v‡iv-2-wg_vBj †cÖv‡cb mwVK DËi: C. 2-wg_vBj-1-†K¬v‡iv‡cÖv‡cb e¨vL¨v: CH3CHCH2Cl 1-†K¬v‡iv-2-wg_vBj‡cÖv‡cb| CH3 3 2 1 RU 01. IUPAC Abymv‡i CF3CHBrCl †h․‡Mi mwVK bvg †KvbwU?[RU-C. 14-15] A. 1,1,1-UªvB‡d¬v‡iv-2-†eªv‡gv-†K¬v‡iv B‡_b B. 1,1,1-UªvB‡d¬v‡iv-2-†K¬v‡iv-2-†eªv‡gv B‡_b C. 2-†eªv‡gv-2-†K¬v‡iv-1,1,1-UªvB‡d¬v‡iv B‡_b D. 2-†K¬v‡iv-2-†eªv‡gv-1,1,1-UªvB‡d¬v‡iv B‡_b mwVK DËi: C. 2-†eªv‡gv-2-†K¬v‡iv-1,1,1-UªvB‡d¬v‡iv B‡_b e¨vL¨v: FCCH 2-†eªv‡gv-2-†K¬v‡iv-1,1,1-UªvB‡d¬v‡ivB‡_b| F F 1 Cl Br 2 02. IUPAC c×wZ‡Z wb‡Pi †h․‡Mi bvg nj- [RU-C. 2005-06] CH3CH(Cl)CH2CH(C2H5)CH3 A. 2-Chloro-4-ethylpentane B. 2-Chloro-4-methylhexane C. 3-Methyl-5-chloro-pentane D. 3-Methyl-5-etholohexane mwVK DËi: B. 2-Chloro-4-methylhexane e¨vL¨v: CH3CHCH2CHCH3 2-†K¬v‡iv-4-wg_vBj‡n‡·b| Cl 1 2 3 4 CH2CH3 5 6 CU 01. IUPAC c×wZ‡Z (CH3)3CCl Gi bvg wK? [CU-Ka.2016-17] A. 2-‡K¬v‡iv-2-wg_vBj‡cÖv‡cb B. Uviwmqvix weDUvBj †K¬vivBW C. 2,2-WvBwg_vBj-2- †K¬v‡ivB‡_b D. 3- †K¬v‡ivweD‡bU E. 2,2,2- UªvBwg_vBj-2-‡K¬v‡ivwg‡_b mwVK DËi: A. 2-‡K¬v‡iv-2-wg_vBj‡cÖv‡cb e¨vL¨v: CH3CCl CH3 CH3 2-Chlro-2 Methyl Propane 02. wb‡Pi ‡h․‡Mi IUPAC bvg wK? [CU. 2010-2011] Cl CH2CH3 H3C I C=C A. UªvÝ-3-Av‡qv‡Wv-4-†K¬v‡iv-3-‡cw›Ub B. UªvÝ-2-‡K¬v‡iv-3-Av‡qv‡Wv-2-‡cw›Ub C. 1-‡K¬v‡iv-1-wg_vBj-2-Av‡qv‡Wv-2-weDwUb D. wmm-2-‡K¬v‡iv-3-Av‡qv‡Wv-2-‡cw›Ub E. wmm-3-Av‡qv‡Wv-4-‡K¬v‡iv-3-‡cw›Ub mwVKDËi: bvB

538 •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 e¨vL¨v: GwU GKwU gRvi I weåvwšÍg~jK cÖkœ| KviY cÖ‡kœ PvIqv Av‡Q IUPAC bvg A_P 5wU Ack‡bi 4wU‡ZB cÖPwjZ bvg †`Iqv| ZvB mn‡RB mwVK DËi †c‡q hv”Q| wKšÍy C GKgvÎ AckbwU‡Z †`Iqv DËi I fzj| ms‡KZ t IUPAC c×wZ‡Z bvgKi‡Y KL‡bvB wmm-UªvÝ D‡jøL nq bv| [A¨vjwKb] DU 01. IUPAC c×wZ‡Z †h․MwUi bvg- [DU. 2000-01] CH3 C=CH CH3 C2H5 A. 1-ethyl-2-butene B. 3-methyl-2-pentene C. 3-methyl-3-pentene D. 3-ethyl-2-butene mwVK DËi: B. 3-methyl-2-pentene e¨vL¨v: IUPAC c×wZ‡Z bvg-3-methyl-2-pentene JnU 01. CH3–CH = C = CH2 Gi bvg wK? [JnU. 2014-15, RU. 2011-12] A. Butane B. 1, 2-Butadiene C. Butene D. Dibutene mwVK DËi: B. 1, 2-Butadiene e¨vL¨v: CH3 4 –CH 3 = C 2 = CH2 1 (1, 2–Butadiene) 02. IUPAC c×wZ‡Z CH2 = CHCH(CH3)CH2CH3 Gi bvgKiY Ki| [JnU. 2013-14] A. 3-methyl-1-pentene B. 3-methyl-4-pentene C. 3-ethyl-1-butene D. 3-ethyl-3-butene mwVK DËi: A. 3-methyl-1-pentene e¨vL¨v: CH2 = CHCHCH2CH3 3-wg_vBj-1-†cw›Ub| 1 CH3 2 3 4 5 JU 01. †KvbwU †cÖvwcb 2-Aj [JU-D. 2014-15] A. CH3COH = CH2 B. CH3COCH3 C. CH3CHOHCH3 D. CH3CH2CH2OH mwVK DËi: A. CH3COH = CH2 e¨vL¨v: CH3C = CH2 †h․MwUi bvg- †cÖvwcb-2-Aj| 3 OH 2 1 RU 01. CH3-CH=CH-CH2CH3 ‡h․MwUi bvg wK? [RU-F3.2017-18, 2006-07] A. ‡c‡›Ub B. 2- †cw›Ub C. 3- ‡cw›Ub D. 2- †c›UvBb mwVK DËi: B. 2-‡cw›Ub e¨vL¨v: CH3CH = CHCH2CH3 1 2 3 4 5 2-‡cw›Ub SUST 01. IUPAC c×wZ‡Z wb‡Pi †h․MwUi bvg wK? [SUST-B. 2014-15] CH3CHCH2CH = CHCHCH3 CH2CH3 CH3 A. 2-B_vBj-6-wg_vBj-3-†nwÞb B. 3,7-WvBwg_vBj-5-Aw±b C. 2,6-WvBwg_vBj-4-Aw±b D. 2-6-WvBwg_vBj-4-†nwÞb E. 2,6-WvBwg_vBj-3-Aw±b mwVK DËi: E. 2,6-WvBwg_vBj-3-Aw±b e¨vL¨v: CH3CHCH2CH = CHCHCH3 CH2CH3 6 2,6-WvBwg_vBj-3-Aw±b| CH3 5 4 3 2 1 BUET 01. IUPAC c×wZ Abyhvqx bx‡Pi †h․MwUi bvg? [BUET: 2009-2010; BRU.D-2014-15] CH3 -CH2 -C-CH-CH2 -CH3 CH2 CH2 -CH3 A. 2,3- diethylpentene-1 B. 3,4- diethylpentene-4 C. 3,3- diethylpentene-1 D. 2- ethyl-methyl butene-1 mwVK DËi: A. 2,3- diethylpentene-1 e¨vL¨v: CH3 -CH2 -C-CH-CH2 -CH3 CH2 CH2 -CH3 2 3 4 5 1 IUPAC c×wZ‡Z bvg-2,3 Diethylpentene-1 [A¨vjKvBb] CU 01. CH3CH2CH(CH3)C CCH3 ‡h․‡Mi IUPAC bvgKiY njÑ [CU. 2004-05] A. 3-wg_vBj-4-‡n·vBj B. 1,3-WvBwg_vBj †c‡›Ub C. 4-wg_vBj-2-‡n·vBb D. 1-wg_vBj-1-B_vBj weDUvBb mwVK DËi: C. 4-wg_vBj-2-‡n·vBb e¨vL¨v: CH3CH2CHC CCH3 †h․MwUi bvg- 4-wg_vBj-2-‡n·vBb| CH3 6 5 4 3 2 1 JUST 01. CH3 – CH = C = CH2 Gi bvg wK? [JUST-B: 2019-20] A. weD‡Ub B. 1, 2-weDUvWvBb C. weDwUb D. WvBweDwUb mwVK DËi: B. 1, 2-weDUvWvBb HSTU 01. IUPAC c×wZ‡Z CH3-CH(CH3)-C CH †h․MwUi bvg wK? [HSTU-B.2016-17] A. weDUvBb - 1 B. 3- wg_vBj weDUvBb -1 C. weDwUb - 1 D. 3- wg_vBj ‡cÖvcvBb -1 mwVK DËi: B. 3- wg_vBj weDUvBb -1 e¨vL¨v: CH3 C 4 H–C 3 H–C 2 C 1 H3 3-wg_vBj weDUvBb -1 [A¨vj‡Kvnj] DU 01. IUPAC c×wZ‡Z CH3-CH(CH3)CH2-C(CH3)OH-CH2-CH3 Gi bvg n‡”Q- [DU-Ka.2017-18] A. 2,4-Dimethylhexanol-4 B. 3,5-Dimethylhexanol-3 C. 1-Ethyl-1,3-Dimethylhexanol-1 D. 1,3-Dimethyl-1-ethylbutanlol-1 mwVK DËi: B. 3,5-Dimethylhexanol-3 e¨vL¨v: CH3CCH2CCH2CH3 CH3 CH3 H OH 3,5-WvB wg_vBj †n·vbj-3 6 5 4 3 2 1 02. wb‡Pi †Kvb †h․MwUi bvg IUPAC c×wZ‡Z mwVKfv‡e †jLv nq wb? [DU. 2002-2003] A. CH3CHClCH2OH (2-chloro propane-1-ol) B. CH3CH2CHClCH2OH (3-chloro propane-1-ol) C. CH3-CH2-CH2-CH (CH3) – CH3 (2-methyl pentane) D. CH3-CH2-CH2-CH(CH3)-CH2 – CH3 (3-methyl hexane) mwVK DËi- B e¨vL¨v: B Gi mwVK bvg n‡e- CH3CH2CHCICH2OH (2-chloro butane-1-Ol)

CHEMISTRY PLUS •Re imvqb 539 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 RU 01. (CH3)2CHCH2OH GwU wK‡mi ms‡KZ? [RU. 2007-08] A. 2-wg_vBj †cÖvcvbj-2 B. 2-wg_vBj-2-weDUvbj C. 2-wg_vBj †cÖvcvbj-1 D. 2-B_vBj †cÖvcvbj-2 mwVK DËi: C. 2-wg_vBj †cÖvcvbj-1 e¨vL¨v: CH3CHCH2OH 2-wg_vBj †cÖvcvbj-1 CH3 3 2 1 CU 01. OH †hŠMwUi IUPAC bvg wK? [CU. 11-12] A. †c›U-2-Bb-1-Aj& B.1-nvBWªw· †c›U-2-Bb C. 4-nvBWªw· †cw›Ub-3 D. †c›U-1-Bb-1-Aj& E. 1-†cw›Ubj mwVK DËi: D. †c›U-1-Bb-1-Aj e¨vL¨v: CH3 CH2 CH OH CH2 CH 5 3 2 1 4 ‡c›U-1-Bb-1-Aj 02. IUPAC c×wZ‡Z CH3CCH2CHCH3 CH2CH3 Cl OH Gi bvgKiY n‡jvÑ [CU-A. 2003-04] A. 2-B_vBj-3-†K¬v‡iv-4-nvB‡Wªvw· †c‡›Ub B. 2-B_vBj-3-†K¬v‡iv-5-nvB‡Wªvw· †n‡·b C. 2-B_vBj-3-†K¬v‡iv-2-nvB‡Wªvw· †c‡›Ub D. 4-wg_vBj-4-†K¬v‡iv-2-†n·vbj mwVK DËi: D. 4-wg_vBj-4-†K¬v‡iv-2-†n·vbj e¨vL¨v: CH3CCH2CHCH3 4-†K¬v‡iv-4-wg_vBj-2-†n·vbj| CH2CH3 4 5 6 3 2 1 Cl OH 03. (CH3)2CHCH(OH)CH3 †h․MwUi IUPAC c×wZi bvgÑ [SylAU. 2012-13, 2013-14] A. 1,3-WvB wg_vBj-1-†cÖvcvbj B. 3-wg_vBj-2-weDUvbj C. 2,2-WvB wg_vBj-1-‡cÖvcvbj D. 3-wg_vBj-2-‡cÖvcvbj mwVK DËi: B. 3-wg_vBj-2-weDUvbj e¨vL¨v: CH3CHCHCH3 3-wg_vBj-2-weDUvbj| CH3 4 OH 3 2 1 [A¨vjwWnvBW] CU 01. IUPAC c×wZ‡Z CH3CHO †h․MwUi bvg- [CU.2009-2010] A. GwmUvBj A¨vj‡Kvnj B. GwmUvjwWnvBW C. GwmUvBj nvB‡WªvKmvBW D. Gwm‡Uvb E. B_vb¨vj mwVK DËi: E. B_vb¨vj IU 01. IUPAC c×wZ‡Z (CH3)2CHCH(CHO)CH2CH3 †h․MwUi bvg- [IU. 11-12] A. 2-B_vBj-3-wg_vBj weDUvb¨vj B. 1-wg_vBj-4-nvBWªw· †n‡·b C. 2-B_vBj-3-wg_vBj weDUvbj D. †KvbwUB bq mwVK DËi: A. 2-B_vBj-3-wg_vBj weDUvb¨vj e¨vL¨v: CH3CHCHCH2CH3 2-B_vBj-3-wg_vBj weDUvb¨vj| CH3 CHO 4 3 2 1 DU-7Clg 01. (CH3)3CCHO Gi IUPAC bvg wK? [DU-7Clg. 2019-20] A. UªvBwg_vBj A¨vwmUvjwWnvBW B. 2,2,2-UªvBwg_vBj B_vb¨vj C. neo-†c›Uvbj D. 2,2-WvBwg_vBj †cÖvcvb¨vj mwVK DËi: D. 2,2-WvBwg_vBj †cÖvcvb¨vj e¨vL¨v: CH3 | CH3 C CHO | CH3 3 2 1 [wK‡Uvb] RU 01. CH3COCH2CH2CH3 †h․MwUi bvg wK? [RU. 2007-08] A. †c›Uv‡bvb-3 B. †cÖvcvbj-2 C. †c›Uvbj-2 D. †c›Uv‡bvb-2 mwVK DËi: D. †c›Uv‡bvb-2 e¨vL¨v: CH3CCH2CH2CH3 †c›Uv‡bvb-2 O 1 2 3 4 5 KU 01. 1-nvB‡Wªvw·-4-wg_vBj-3-†c›Uv‡bvb Gi MvVwbK ms‡KZ †KvbwU? [KU. 2019-20] A. CH3CH2COCH(CH3)CH2OH B. CH3CH(CH3)COCH2CH2OH C. CH3C(CH3)2COCH2CH3 D. (CH3)2CHCH2COH2OH mwVK DËi: B. CH3CH(CH3)COCH2CH2OH MAT 01 . †KvbwU weDUv‡bv‡bi ivmvqwbK ms‡KZ? [MAT.2013-2014] A. H3C–CH2–CHO B. H3C–CO–CH3 C. H3C–CO–CH2–CH3 D. HCHO mwVK DËi: C. H3C–CO–CH2–CH3 [Kv‡e©vw·wjK GwmW] JU 01. CH3CH2CH2CH(Br)COOH Gi bvgÑ [JU-D. 2013-14] A. 4-†eªv‡gv †c›Uv‡bvwqK GwmW B. 2-†eªv‡gv †c›Uv‡bvwqK GwmW C. 2-†eªv‡gv weDUv‡bvwqK GwmW D. 4-†eªv‡gv weDUv‡bvwqK GwmW mwVK DËi: B. 2-†eªv‡gv †c›Uv‡bvwqK GwmW e¨vL¨v: CH3CH2CH2CHCOOH †h․MwUi bvg- 2-†eªv‡gv‡c›Uv‡bvwqK GwmW| 5 Br 4 3 2 1 02. CH3CH2CH(CH3)CH(Br)CH2COOH [JU-D. 2013-14] A. 3-‡eªv‡gv-4-wg_vBj †n·v‡bvwqK GwmW B. 3-‡eªv‡gv-4-‡eªv‡gv †n·v‡bvwqK GwmW C. 3-‡eªv‡gv-4-wg_vBj †c›Uv‡bvwqK GwmW D. 3-‡eªv‡gv-4-‡eªv‡gv †c›Uv‡bvwqK GwmW mwVK DËi: A. 3-‡eªv‡gv-4-wg_vBj †n·v‡bvwqK GwmW e¨vL¨v: CH3CH2CHCHCH2COOH †h․MwUi bvg- 3-†eªv‡gv-4-wg_vBj‡n·v‡bvwqK GwmW| 6 CH Br 3 5 4 3 2 1 03. IUPAC c×wZ‡Z H3C(CH2)3CHClCH2CH(NH2)COOH ‡h․MwUi bvgÑ [JU. 2010-11] A. 4-‡K¬v‡iv-2-A¨vwg‡bv-‡nÞv‡bvwqK GwmW B. 4-‡K¬v‡iv-4-A¨vwg‡bv-‡nÞv‡bvwqK GwmW C. 2-A¨vwg‡bv-3-‡K¬v‡iv A±v‡bvwqK GwmW D. 2-A¨vwg‡bv-4-‡K¬v‡iv A±v‡bvwqK GwmW

540 •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 mwVK DËi: D. 2-A¨vwg‡bv-4-‡K¬v‡iv A±v‡bvwqK GwmW e¨vL¨v: CH3CH2CH2CH2CHCH2CHCOOH †h․MwUi bvg- 2-A¨vwg‡bv-4-‡K¬v‡iv A±v‡bvwqK GwmW| 8 Cl NH2 7 6 5 4 3 2 1 04. CH2 = CHCOOH Gi AvšÍR©vwZK bvg wK? [JU. 2009-10] A. cÖwcj Kve©w·wjK GwmW B. 2-cÖwc‡bvwqK GwmW C. wfbvBj A¨v‡mwUK GwmW D. ‡cÖvcv‡bvwqK GwmW mwVK DËi: B. 2-cÖwc‡bvwqK GwmW e¨vL¨v: 3 CH2 = 2 CH 1 COOH 2-†cÖvwc‡bvwqK GwmW| MBSTU 01. A¨vwWwcK Gwm‡Wi IUPAC bvg n‡”QÑ [MBSTU-B. 2012-13] A. †n‡·b WvB AwqK GwmW B. †n‡Þb WvB AwqK GwmW C. A‡±b WvB AwqK GwmW D. †W‡Kb WvB AwqK GwmW mwVK DËi: A. †n‡·b WvB AwqK GwmW e¨vL¨v: A¨vwWwcK Gwm‡Wi IUPAC bvg n‡”Q- †n‡·b WvB AwqK GwmW [HOOC(CH2)4COOH] [A¨vwgb] JU 01. (CH3)2N-C(CH3)H-CH2-CH3 Gi bvg wK? [JU. 2011-12, RU. 2014-15, HSTU. 2012-13] A. 2-(N, N-WvBwg_vBjA¨vwg‡bv) weD‡Ub B. 2, 3-WvBwg_vBj weD‡Ub C. 1, 1-WvBwg_vBj weD‡Ub D. N, N (1-WvBwg_vBjA¨vwg‡bv) weD‡Ub mwVK DËi: A. 2-(N, N-WvBwg_vBjA¨vwg‡bv) weD‡Ub e¨vL¨v: CH3NCHCH2CH3 †h․MwUi bvg- 2-(N,N-WvBwg_vBj A¨vwg‡bv) weD‡Ub| CH3CH3 1 2 3 4 [GKvwaK Kvh©Kixg~jK wewkó †h․M] RU 01. IUPAC c×wZ‡Z CH2 = CHCH(OH)CH3 †h․MwUi mwVK bvgÑ [RU-C. 2014-15] A. 3-weDwUb-2-Aj B. weDwUb-13-Aj C. 4-weDwUb-2-Aj D. 3-weDwUb-3-Aj mwVK DËi: A. 3-weDwUb-2-Aj e¨vL¨v: CH2 = CHCHCH3 3-weDwUb-2-Aj| OH 4 3 2 1 CU 01. CH3(CH2)2CH = CHOH †h․MwUi IUPAC bvg wK? [CU. 10-11] A. †c›U-2-Bb-1-Aj B. 1-nvBWªw· †c›U-1-Bb C. 4-nvBWªw· †cw›Ub-3 D. †c›U-1-Bb-1-Aj E. 4-†cw›Ub-3-Aj mwVK DËi: D. ‡c›U-1-Bb-1-Aj e¨vL¨v: CH3CH2CH2CH = CHOH 5 †h․MwUi bvg-†c›U-1-Bb-1-Aj 4 3 2 1 02. IUPAC Abymv‡i CH3CHCH = CHCH2OH CH3 [CU-A. 2002-03] A. 2-wg_vBj-3-‡cw›Ub-5-Aj B. 1,1-WvBwg_vBj-2-‡cÖvwcb-4-Aj C. 3-AvB‡mv‡cÖvcvBj-2-‡cÖvwcb-1-Aj D. 4-wg_vBj-2-‡cw›Ub-1-Aj mwVK DËi: D. 4-wg_vBj-2-‡cw›Ub-1-Aj e¨vL¨v: CH3CHCH = CHCH2OH 5 CH3 †h․MwUi bvg- 4-wg_vBj-2-‡cw›Ub-1-Aj| 4 3 2 1 SUST 01. IUPAC c×wZ‡Z CH3–CH(Cl)CH2–CH(OH)CH2–CHO Gi mwVK bvgKiY n‡jv- [SUST-B. 2019-20] A. 2-Chloro-5-aldehydo-hexanol-4 B. 2-Hydroxi-4-chlorohexanal C. 2-Chloro-4-hydroxyhexanal D. 5-Choloro-3-hydroxyhexanal E. 5-Aldehyde-2-chlorohexane-4-ol mwVK DËi: D. 5-Choloro-3-hydroxyhexanal e¨vL¨v: CH3–CH(Cl)CH2–CH(OH)CH2–CHO †h․MwU‡K Numbering Kwi6 CH3– 5 CH(Cl) 4 CH2– 3 CH(OH) 2 CH2– 1 CHO 5-Chloro-3-hydroxyhexanal 02. CH3-CH(OH)-CH(CH3)-CH2-CO-CH2CH3 Gi IUPAC bvg wK? [SUST-B93.2017-18] A. 6- nvBWªw·-5-wg_vBj-3-‡nÞv‡bvb B. 1,4- WvBwg_vBj-5- nvBWªw·-2-‡n·v‡bvb C. 5-nvBWªw·-4-wg_vBj-2-‡n·‡bvb D. 6-nvBWªw·-4-wg_vBj-2- †nÞv‡bvb E. 5-nvBWªw·-4-wg_vBj-3-†n·v‡bvb mwVK DËi: A. 6- nvBWªw·-5-wg_vBj-3-‡nÞv‡bvb e¨vL¨v: CH3CHCHCH2COCH2CH3 OH CH3 7 6 5 4 3 2 1 6-nvBWªw·-5-wg_vBj-3-†nÞv‡bvb 03. IUPAC c×wZ‡Z H3C – CH(OH) – CH(Br)-CH2Br ‡h․MwUi mwVK bvgKiY Kx? [SUST-B.2016-17, BSMRSTU. 2016-17] A. wg_vBj WvB‡eªvB_vBj weDUvbj B. 3,4 WvB‡eªvgv -2-weDUvbj C. 1-wg_vBj - 2, 3-WvB‡eªv‡gvweDUvbj D. 3-wg_vBj -1, 2- WvB‡eªv‡gvweDUvbj E. 3-nvBWªw·-3-wg_vBj 2, 3- WvB‡eªv‡gvweD‡Ub mwVK DËi: B. 3, 4 WvB‡eªv‡gv -2-weDUvbj e¨vL¨v: H C C CH CH Br 2 Br H OH 3 3, 4 WvB‡eªv‡gv -2-weDUvbj 04. CH2 = CHCOCH2CH3 †h․MwUi IUPAC bvgKiY n‡”QÑ [SUST-D. 2004-05] A. 1-‡cw›Ub-3-Ib B. 2-‡c›UvBb wK‡Uvb C. 4-‡c›UvBb-3-Ib D. ‡KvbwUB bq mwVK DËi: A. 1-‡cw›Ub-3-Ib e¨vL¨v: CH2 = CHCCH2CH3 1-‡cw›Ub-3-Ib| 1 O 2 3 4 5 BSMRSTU 01. CH3CH2C CCH2CH2OH †h․MwUi IUPAC c×wZ‡Z bvgKiY n‡eÑ [BSMRSTU-A. 2014-15] A. 3-†n·vBb-1-Aj B. †n·vbj-3 C. 1,2-wg_vBj †n·vbj-2 D. 2-wg_vBj †cÖvcvbj mwVK DËi: A. 3-†n·vBb-1-Aj e¨vL¨v: CH3CH2C CCH2CH2OH 3-‡n·vBb-1-Aj| 6 5 4 3 2 1

CHEMISTRY PLUS •Re imvqb 541 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 DU Technology 01. IUPAC c×wZ‡Z (CH3)2CH–CH2–CH2–Br Gi bvg n‡jv- [DU-Projukti. 2019-20] A. 1-†eªv‡gv‡c‡›Ub B. 2-wg_vBj-4- †eªv‡gvweD‡Ub C. 1-†eªv‡gv-3-wg_vBjweD‡Ub D. 2-wg_vBj-3-†eªv‡gv‡cÖv‡cb mwVK DËi: C. 1-†eªv‡gv-3-wg_vBjweD‡Ub [A¨v‡iv‡gwUK †h․M] DU 01. CH3 CH3 CH2CH2CH2CH3 ‡h․MwUi IUPAC bvg n‡jv- [DU. 2015-16] A. 1, 2 – methyl – 4 butyl benzene B. Methyl butyl benzene C. 1,2,4-dimethyl butyl benzene D. 1-butyl-3,4-dimethyl benzene mwVK DËi: D. 1-butyl-3,4-dimethyl benzene e¨vL¨v: (1–weDUvBj–3,4–WvBwg_vBj †ebwRb) CH3 CH3 CH2CH2CH2CH3 1 2 3 4 5 6 02. IUPAC c×wZ Abyhvqx wb‡Pi †h․MwUi bvg- [DU. 2004-05, 1997-98] Br NO2 Cl A. 1-bromo-4-chloro -2- nitro benzene B. 1- chloro-3-nitro-4-bromo benzene C. 1- nitro -2- bromo -5- chloro benzene D. 1- chloro -2- bromo -4- nitro benzene mwVK DËi: A. 1-bromo-4-chloro -2- nitro benzene e¨vL¨v: Kvh©Kixg~j‡Ki AMÖvwaKvi µ‡g cvB-X2>NO2 Bs‡iRx eY©gvjvi µgvbymv‡i, †eªvwgb Av‡M weavq G‡K Av‡M wjL‡Z n‡e| ZvB Dc‡iv³ †h․‡Mi bvg n‡e- 1-bromo-4-chloro-2- nitro benzene [Ref: byiæj Bmjvg m¨vi/ B›Uvi‡bU) KU 01. wb‡Pi †h․MwUi mwVK bvgKiY †KvbwU? [KU-A. 2010-11] OH Cl NO2 A. 1-nvB‡Wªv·vBW-2-‡K¬v‡iv-4-bvB‡Uªv †ebwRb B. 1-‡K¬v‡iv-3-bvB‡Uªv †dbj C. 2-‡K¬v‡iv-4-bvB‡Uªv †dbj D. 1-nvB‡Wªv·vBW-2-‡K¬v‡iv bvB‡Uªv †ebwRb mwVK DËi: C. 2-‡K¬v‡iv-4-bvB‡Uªv †dbj e¨vL¨v: OH Cl NO2 1 2 3 4 5 6 †h․MwUi bvg- 2-‡K¬v‡iv-4-bvB‡Uªv‡dbj| [mvaviY ev cÖPwjZ c×wZ] JU 01. †KvbwU †gUv-RvBwjb? [JU-D. 2016-17] A. CH3 CH3 B. CH3 C2H6 C. CH3 COOH D. CH3 CH3 mwVK DËi: D. 02. AvB‡mvweDUvBj A¨vj‡Kvn‡ji MvVwbK ms‡KZ n‡jvÑ [JU. 2010-11, 09-10] A. CH3CH2CH2CH2OH B. CH3CH(CH3)CH2OH C. CH3CHCH2CH3 D. CH3COH mwVK DËi: B. CH3CH(CH3)CH2OH e¨vL¨v: AvB‡mvweDUvBj A¨vj‡Kvn‡ji MvVwbK ms‡KZ n‡jv CH3CH(CH3)CH2OH 03. H3C–CH2–(CH3)CH2–A¨vjKvBj g~jKwUi bvg wK? [JU. 2009-2010] A. n-weDUvBj B. Bj C. sec-weDUvBj D. tert-weDUvBj mwVK DËi: B. iso-weDUvBj RU 01. CH3SH †h․MwUi bvg njÑ [RU-H. 2016-17] A. wg‡_b mvjdvBW B. wg‡_b _vqj C. wg_vBj nvB‡Wªv‡Rb mvjdvBW D. _v‡qvwg_vbj mwVK DËi: B. wg‡_b _vqj e¨vL¨v: CH3SH †h․MwUi bvg _vqj| STEP 03 ANALYSIS OF ENGINEERING & BUTex QUESTION Tex.Eng.Clg. 01. The name of the following compound according to the IUPAC system is CH3–C–CH2–COOH O [Tex.Eng.Clg. 2019-20] A. 3 – Oxobutanoic acid B. butanoic acid C. 2 times butanoic acid D. 1 – carboxilic – Oxobuten mwVK DËi: A. 3 – Oxobutanoic acid e¨vL¨v: According to IUPAC system, the most prominent functional group gives the compound its name. The carboxyl group dominates over the keto group and thus, the numbering starts from the carboxyl side. ‘Oxo’ is the ketone group’s substitute form. †Zvgvi covi †Uwe‡j cÖ‡qvRb GKRb Av`k© M„nwkÿK hvi Kv‡Q Zzwg me mgm¨vi mgvavb cv‡e| Avi me mgm¨vi mgvavb Ki‡ZB Avgv‡`i we‡kl Av‡qvRbASPECT SERIES cvV¨eB‡K mnR Kivi cÖqvm fvwm©wU, †gwW‡Kj, BwÄwbqvwis I GKv‡WwgK cÖ¯‧wZi M„nwkÿ‡Ki weKí

542 •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 CONCEPT 05 mgvYyZv m¤úwK©Z Z_¨vewj mgvYyZv †_‡K wZb fv‡e cÖkœ Av‡m: (i) †kÖYxweb¨vm †_‡K D`vniY (ii) R¨vwgwZK I Av‡jvK mwµq mgvYyZvi kZ© (iii) mgvYyZvi msL¨v wbY©q| Item-01: mgvYyZvi †kªYxweb¨vm: mgvby MvVwbK mgvYy/2D †÷wiI/3D GKwUi cvk¦© wkKj Kvh©Kix g~jK wfbœ Av‡Q AciwUi bvB cvk¦© wkK‡ji Ae¯
vb wfbœ Kvh©Kix g~j‡Ki `yB cv‡k¦© Kve©b msL¨v wfbœ Kvh©Kix g~jK AbeiZ cwieZ©bkxj wkKj mgvYy Ae¯
vb mgvYy Kvh©Kix g~jK mgvYy †gUvgvwiRg U‡UvgvwiRg Av‡jvK mwµq mgvYyZv R¨vwgwZK mgvYyZv mgvYyZv g~jZ `yB cÖKvi| h_v- A. MvVwbK mgvYyZv B. †÷wiI ev wÎ-gvwÎK mgvYyZv| A. MvVwbK mgvYyZv g‡b ivLvi mnR Dcvq : wkZ‡ji Kvh©Kjv‡c †gvUv wUUz AmnvqMvVwbK mgvYyZv 5 cÖKvi wkZ‡ji wkKj ev †PBb mgvYyZv Kvh©Kjv‡c Kvh©Kixg~jK mgvYyZv Amnvq Ae¯
vb mgvYyZv wUUz U‡UvgvwiRg †gvUv †gUvgvwiRg †h Kvi‡Y nq Kve©b wkK‡ji wfbœZvi Kvi‡Y nq Kvh©Kix g~jK wfbœZvi Kvi‡Y Kvh©Kix g~j‡Ki Ae¯
vb wfbœZvi Kvi‡Y Kvh©Kix g~jK cwieZ©bkxjZvi Kvi‡Y Kve©b msL¨vi AmvgÄm¨Zvi Kvi‡Y D`vniY CH3CH2CH2CH3 Ges CH3CHCH3 CH3 CH3CH2OH Ges CH3OCH3 CH3CH2CH2OH Ges CH3CHCH3 OH CH3CCH3 O Ges CH3C = CH2 OH †gUvgvwiR‡g Kve©b msL¨v b~¨bZg 4 n‡eCH3OC3H7 Ges C2H5OC2H5 U‡UvgvwiR‡gi kZ©vejx: †h․‡Mi AYy‡Z Kvh©Kix MÖæ‡ci mv‡c‡ÿ Kgc‡ÿ 1wU -H cigvYy Dcw¯
Z _vK‡e| †h․MwU‡Z Aek¨B GKwU Zwor FYvZ¥K cigvYy wØ-eÜb ev wÎ-eÜb Øviv hy³ _vK‡e| †hgb: >C = O, N = O, >C = NH †gUvgvwiRg Kviv †`q: Enrique knows 3A‟s House- [mn‡R g‡b ivL‡e w؇hvRx Kvh©Kix g~jK] wØ-eÜbhy³ †h․M Enrique Ether knows Ketone 3A’s A A A Acetone 2 Amine Acid anhydride B. ‡÷wiI mgvYyZv: †÷wiI mgvYyZv `yB cÖKvi| h_v- (i) R¨vwgwZK mgvYyZv I (ii) Av‡jvK mwµq mgvYyZv| Type-01: R¨vwgwZK ev Cis-trans mgvYyZv †Pbvi DcvqtÑ Q‡›` Q‡›` R¨vwgwZK mgvYyZv ev‡K¨ ev‡K¨ R¨vwgwZK mgvYyZv mn‡R †Pbvi Dcvq `yB eÜz gy³ bq PµKv‡i P‡j wmm-UªvÝ nIqvi Rb¨ wZbwU kZ© e‡j GKB g~jK _vK‡e bv same Kve©‡bi mv‡_ wØ-eÜb hy³ n‡jB wmm-UªvÝ nq Zv‡Z| (i) wØ-eÜb hy³ ev PvwµK †h․M (ii) gy³ AveZ©b n‡e bv (iii) wZbwU mgxKiY- Cab=Cab, Cab = Cad ev Cab = Cde Kve©b-Kve©b wØeÜb _vK‡Z n‡e A_ev e× wkKj †h․M n‡Z n‡e| wØ-eÜbhy³ Kve©‡bi Kvh©Kix g~jK KLbI GKB n‡Z cvi‡e bv, A_©vr wØ-eÜbhy³ Kve©‡bi mv‡_ GKB RvZxq g~j‡Ki c~btive„wË n‡e bv| ïaygvÎ wØ-eÜb hy³ Kve©‡bi mv‡_ wfbœ g~jK _vK‡jB R¨vwgwZK mgvYyZv w`‡e `ywU g~jK GKB n‡j mgvYyZv MVb Ki‡e bv

CHEMISTRY PLUS •Re imvqb 543 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 C CH2CH3 OH Cl Chiral Carbon K‡qKwU cÖPwjZ R¨vwgwZK mgvYyZvi D`vniY: D`vniY R¨vwgwZK mgvYyZv KviY †h mv‡j G‡m‡Q CH2 = CHCH2CH3 w`‡e bv wØ-eÜbhy³ Kve©‡bi mv‡_ nvB‡Wªv‡Rb Wvej ev wiwcU [JU-D,Set-C: 2018-19] CH3CH = CHCH3 w`‡e wØ-eÜbhy³ Kve©‡bi mv‡_ ‡Kvb (GKB iKg) wiwcU bvB (CH3)2C = CHCH3 w`‡e bv wØ-eÜbhy³ Kve©‡bi mv‡_ wg_vBj Wvej ev wiwcU (CH3)2C = CH2 w`‡e bv wØ-eÜbhy³ nvB‡Wªv‡Rb I wg_vBjg~jK Wvej ev wiwcU CH3CH = C(Cl)Br w`‡e wØ-eÜbhy³ Kve©‡bi mv‡_ ‡Kv‡bv wiwcU bvB [DU. 11-12; JU.2011-12; [DU. 2008- 09; DU.2001-02; CU.2006-07] CH3C(Cl) = CBr2 w`‡e bv wØ-eÜbhy³ Kve©‡bi mv‡_ ‡eªvwgb Wvej ev wiwcU CH3 – CH = CH – C2H5 w`‡e wØ-eÜbhy³ Kve©‡bi mv‡_ ‡Kv‡bv wiwcU bvB [DU. 2010-11, JnU. 2014-15] C6H5 – CH = CHCHOHCOOH w`‡e wØ-eÜbhy³ Kve©‡bi mv‡_ ‡Kv‡bv wiwcU bvB H3CCH=CHCl w`‡e wØ-eÜbhy³ Kve©‡bi mv‡_ ‡Kv‡bv wiwcU bvB [JU. 2009-2010] ClCH=CHBr w`‡e wØ-eÜbhy³ Kve©‡bi mv‡_ ‡Kv‡bv wiwcU bvB CH2 = CH2 w`‡e bv wØ-eÜbhy³ Kve©‡bi mv‡_ nvB‡Wªv‡Rb Wvej ev wiwcU [IU-A.2017-18; JU.A.2017-18; JU.A.2017-18/; HSTU.2017-18] ClCH = CHCl w`‡e wØ-eÜbhy³ Kve©‡bi mv‡_ ‡Kv‡bv wiwcU bvB wmm-UªvÝ cÖm½: Case-01: m`„k cigvYy ev g~jK wØ-eÜbhy³ Kve©b؇qi GKB w`‡K _vK‡j wmm Ges wecixZ w`‡K _vK‡j UªvÝ mgvYy nq| Case-02: hw` m`„k cigvYy ev g~jK bv _v‡K †m †ÿ‡Î cvigvYweK fi ev AvYweK f‡ii Dci wfwË K‡i †ewk cvigvYweK ev AvYweK fiØq (High) GKB cv‡k _vK‡j wmm Ges wfbœ cv‡k _vK‡j UªvÝ mgvYy nq| G‡K EZ mgvYy ejv hvq| C = C CH3 C2H5 H cis Cl C = C CH3 C2H5 Cl trans H wb‡Pi †Kvb †h․MwU Cis-mgvYy Avi †KvbwU trans- mgvby H CH3 CH3 (a) H H CH3 CH3 (b) H g‡b n‡Z cv‡i (a) †h․MwU Cis-mgvYy †h‡nZz CH3 MÖæc KvQvKvwQ Ae¯
vb Ki‡Q| PvwµK †h․‡Mi †ÿ‡Î Giƒc weåvwšÍ `~i Kivi Rb¨ eÜbhy³ cigvYy ev MÖæc ¸‡jv‡K Upper Bond (U.B) I Lower Bond (L.B) wnmv‡e wPwýZ Kiv †h‡Z cv‡i| H CH3 CH3 H (a) H CH3 CH3 H (b) (L.B) (U.B) (U.B) (U.B) hw` GKB MÖæc `yBwU U.B wnmv‡e ev L.B wnmv‡e _v‡K, Z‡e †mwU Cis-mgvYy| Ab¨_vq †mwU trans-mgvYy| (b) †h․MwU‡Z `yBwU-CH3 MÖæc U.B Ae¯
vb i‡q‡Q †mwU Cis-mgvYy| (a) †h․M GKwU CH3 MÖæc U.B Ae¯
v‡b I Av‡iKwU L.B Ae¯
v‡b i‡q‡Q †mwU trans-mgvYy| Cis-Trans Gi cv_©K¨: kkx Gi †P‡q Uªwmi Mjv my›`i †ekxkkx Cis-mgvYy Gi †P‡q Uªwmi Trans-mgvYy Mjv Mjbv¼ my›`i myw¯
wZ †ekx †ekx Type 02: Av‡jvK ev cÖwZwe¤^ mgvYyZv (Optical Isomerism): Av‡jvK mwµq mgvYyZv wPwbevi Dcvq- AcÖwZmg Kve©b cigvYy ev KvBivj Kve©b _vK‡Z n‡e| †h Kve©‡bi Pvi nv‡Z PviwU wfbœ wfbœ cigvYy ev Kvh©Kix g~jK hy³ _v‡K Zv‡K KvBivj Kve©b e‡j|

544 •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 K‡qKwU cÖPwjZ KvBivj Kve©‡bi D`vniY : Av‡jvK mgvYyZvi wewfbœ Z_¨tÑ GbvbwkIgvi (Enantiomers): GKB †h․‡Mi Av‡jvK mwµq `yB mgvYy‡K ci¯ú‡ii GbvbwmIgid ev GbvbwmIgvi ejv nq| ci¯ú‡ii `c©Y cÖwZwe¤^ wKš‧ mgvYycvwZK bq| G‡`i‡K A¨vw›Ugvi ev A¨vw›UcW e‡j| `ywU GbvbwmIgvi mgvYyi ‡f․Z I ivmvqwbK ag© GK n‡jI G‡`i AveZ©‡bi w`K wfbœ nq| 25C ZvcgvÎvq Wvb N~Y©x (d) j¨vKwUK Gwm‡Wi AveZ©‡bi gvb +2.24 nq| HCOH COOH CH3 d-j¨vKwUK GwmW (AveZ©b gvÎv + 2.24) OHCH COOH CH3 l-j¨vKwUK GwmW (AveZ©b gvÎv 2.24) `c©Y Wvqv‡÷wiIgvi-hLb `yB ev `yB Gi AwaK wÎgvwÎK mgeqe G‡K Ac‡ii mv‡_ `c©Y-cÖwZwe¤^ nq bv ZLb Zv‡`i ejv nq Wvqv‡÷wiIgvi| CH3 1 HCBr 2 HCCl 3 CH3 4 (i) d-mgvYy CH3 1 BrCH r 2 ClCH 3 CH3 4 (ii) l-mgvYy CH3 1 BrCH r 2 HCCl 3 CH3 4 (iii) d-mgvYy CH3 HCBr ClCH CH3 (iv) l-mgvYy Wvqv‡÷vwiIgvi Wvqv‡÷vwiIgvi GbvbwkIgvi GbvbwkIgvi Wvqv‡÷vwiIgvi (i) (ii) (iii) (iv) †iwmwgK wgkªYÑ d I l mgvYyi mgAvYweK wgkªY Av‡jvK wbw®…q nq, `ywU GbvbwmIgv‡ii Giƒc mgAvYweK wgkªY‡K †iwmwgK wgkªY ev dl wgkªY ev () wgkªY e‡j Ges cÖwµqvwU‡K †iwmwgKiY e‡j| †iwmwgK wgkÖY Av‡jvK wbw®…q| †g‡mv †h․Mt Wvqv‡÷wiIgv‡i GKvwaK AcÖwZmg ev KvBivj Kve©b cigvYy_vKv m‡Ë¡I hw` Av‡jvK wbw®…q nq Z‡e Zv‡K †g‡mv †h․M e‡j| G‡`i ivmvqwbK Ges ‡f․Z ag© GbvbwmIgvi †_‡K wfbœ| GB RvZxq †h․‡M GKwU †g․wjK cÖwZmvg¨ Dcv`vb _vK‡eB|

CHEMISTRY PLUS •Re imvqb 545 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: mgvYyZvi msL¨v wbY©q : mg‡MvÎxq †kªwY mvaviY ms‡KZ n ms‡KZ mgvYy i msL¨v A¨vj‡Kb (CnH2n+2) 4 C4H10 2 5 C5H12 3 6 C6H14 5 7 C7H16 9 A¨vjwKb (CnH2n) 3 C3H6 2 4 C4H8 3 5 C5H10 6 A¨vjKvBb (CnH2n–2) 4 C4H6 2 5 C5H8 3 A¨vj‡Kvnj I B_vi (CnH2n+2O) 2 C2H6O 2 3 C3H8O 3 4 C4H10O 7 (4Alc.+3 Either) A¨vjwWnvBW, wK‡Uvb I A¨vjwK‡bi A¨vj‡Kvnj (CnH2nO) 2 C2H4O 2 3 C3H6O 4 4 C4H8O 8(3) 5 C5H10O 11(7) 6 C6H12O 12 ‣Re GwmW I G÷vi (CnH2nO2) 3 C3H6O2 2 4 C4H8O2 4 A¨vgvBW (CnH2n+1ON) 4 C4H9ON 5 A¨vwgb (CnH2n+3N) 3 C3H9N 4 4 C4H11N 9 Aromatic C7H9N 5 n¨v‡jv‡Rb RvZK (CnH2n+1X) 4 C4H9X 4 (CnH2nX2) 4 C4H8X2 10 wmm&UªvÝ ev R¨vwgwZK mgvYyZv (CnHnX2) 2 C2H2X2 2 Møy‡KvR 2 n 4 C6H12O6 16 gRvi wUªKm †PBb web¨v‡mi msL¨v ev A¨vj‡K‡bi mgvYy wbY©q: †PBb web¨vm wbY©‡qi m~Î : †PBb web¨vm = 2n4 + 1 (GLv‡b, n = C Gi msL¨v 1 †_‡K 7 ch©šÍ) Ex-01: weD‡U‡bi mgvYyi msL¨v KZ: weD‡U‡b n = 4 n‡j, †PBb web¨vm = 244 + 1 = 20 + 1 = 1 + 1 = 2 Ex-02: †n‡·‡b mgvYyi msL¨v KZ: †n‡·‡b n = 6 , †PBb web¨vm = 264 + 1 = 22 + 1 = 5 mveavb: Kve©b msL¨v 8 Gi Dc‡i †M‡j m~Î cÖ‡hvR¨ n‡e bv| Avm‡j, Kve©b msL¨v 8 Gi †ewk w`‡q cÖkœ KL‡bv Avm‡e bv| A¨v‡iv‡gwUK †h․‡Mi mgvYyZv: A¨v‡iv‡gwUK mgvYyZv g‡bvRvZK (C6H5X) [†ebwRb g‡bvRvZ‡Ki mgvYy nq bv] WvBRvZK (C6H4X2) [†ebwRb WvBRvZ‡Ki mgvYy 3wU] cwjRvZK (C6H3X3) [†ebwRb UªvBRvZ‡Ki mgvYy 3,6,10wU] 3wU cÖwZ¯
vcKB GKB n‡j mgvby n‡e 3wU [D`v: C6H3(CH3)3] 2wU cÖwZ¯
vcK GKB n‡j mgvby n‡e 6wU [D`v: C6H3(CH3)2(Cl)] 3wU cÖwZ¯
vcKB wfbœ n‡j mgvby n‡e 10wU [D`v: C6H3(CH3)(Cl)(NO2)] Item- 03: mgvYyZvi mZ¨Zv hvPvBt Ex. wb‡Pi †h․M¸‡jvi †KvbwU †n‡·‡bi mgvYy bq? [DU. 2003-2004] A. 2, 3- dimethyle butane B. 2, 2- dimethyle butane C. 2- methyle pentane D. 2, 2-dimethyle propane. mwVK DËi: D. 2, 2-dimethyle propane. e¨vL¨v: Gai‡Yi cÖ‡kœi DËi GKwU gRvi †UKwb‡Ki gva¨‡g †`Iqv hvq| †n‡·‡bi mgvYy ‡Z Kve©b msL¨vi †Kvb cwieZ©b nq bv| ZvB †n‡·‡bi mgvYy †mUvB bq hv‡Z Kve©b msL¨v 6 Gi Kg ev †ewk Av‡Q| Gevi jÿ¨ KiA. 2, 3- dimethyle butane = 1 + 1 + 4 = 6 C B. 2, 2- dimetthyle butane = 1 + 1 + 4 = 6 C C. 2- methyle pentane = 1 + 5 = 6 C D. 2, 2-dimethyle propane. = 1+ 1 + 3 = 5 C GLv‡b D ‡Z Kve©b msL¨v 5 wU nq Avm‡j †n‡·‡b Kve©b msL¨v 6wU| ZvB mwVK DËi- D

546 •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 -t Z_¨ KwYKv: (HOT NEWS GALLERY) t- U‡UvgvwiRg‡K MwZkxj Kvh©Kix g~jK mgvYyZv ev wK‡UvB‡bvj mgvYyZv e‡j| Kÿ ZvcgvÎvq wPwbi (C12H22O11) Av‡cwÿK AveZ©b +66.5| GK eY©x Av‡jvi GKwU D`vniY n‡jv †mvwWqvg Av‡jv (Sodium Lamp) Ges Gi Zi½‣`N©¨ n‡jv 5,893Å| -D I -D Møy‡Kv‡Ri wgkÖ‡Yi mvg¨e¯
vq Av‡cwÿK AveZ©‡bi gvb w¯
i nq +53 †Z| hv‡K Møy‡Kv‡Ri wgDUv N~Y©b e‡j| Av‡jvK mwµqZvi Rb¨ AcÖwZmg Kve©b cigvYy Avewk¨K bq| †Kvb †h․‡Mi Av‡jvK mwµqZv †h h‡š¿i mvnv‡h¨ kbv³KiY I cwigvc Kiv nq, H hš¿‡K Ô†cvjvwiwgUviÕ e‡j| †cvjvivBRW Av‡jvK iwk¥ (Polarised light rays)t †h Av‡jvK iwk¥i Zi‡½i Av‡›`vjb GKwU gvÎ Z‡jB N‡U, †mB RvZxq Av‡jvK iwk¥ ¸wj‡K †cvjvivBRW Av‡jvK iwk¥ ejv nq| CaCO3 Gi GKwU we‡kl iƒc‡K K¨vjmvBU ejv nq| wb‡Kj wcÖRg nj K¨vjmvBU wbwg©Z wcÖRg| Short Ans Question SAQWRITTEN SUGGESTION BAQ Broad Ans Question cÖkœ-01| wb‡Pi †h․Mmg~‡ni MvVwbK ms‡KZ wjL Ges Av‡jvK mgvYy †h․M/ †h․Mmg~n mbv³ Ki| [BUET. 2019-20] (a) UviUvwiK GwmW (b) j¨vKwUK GwmW (c) cis-1,2-dimethyl cyclopropane [JnU. 2018-19] DËi: (a) UviUvwiK GwmW COOH HCOH HCOH COOH * * (†g‡mv †h․M) ; (b) j¨vKwUK GwmW H3CCCOOH H | | OH * ; Av‡jvK mwµq †h․M (c) CC CH2 CH3 CH3 H H cis-1,2-WvBwg_vBj mvB‡K¬v‡cÖv‡cb cÖkœ-02| wb‡Pi †KvbwU mgvYy bq? [BUET. 2002-03] (i) H2CCH2 H2CCH2 (ii) CH3CH = CHCH3 (iii) CH2 = CHCH2CH3 (iv) CH3CH2CHO DËi: (i), (ii), (iii) G‡`i GKB AvYweK ms‡K‡Zi wfbœiƒc myZivs (iv) CH3CH2CHO mgvYy bq| cÖkœ-03| wb‡¤œv³ ivmvqwbK c`v_©mg~‡ni g‡a¨ MV‡bi g~jK cv_©K¨ D‡jøL Ki: Ôn-†cÖvcvbj I AvB‡mv †cÖvcvbjÕ| [BUTex. 2004-05] DËi: n-†cÖvcvb‡j Kve©b KvVv‡gv kvLvwenxb I AvB‡mv †cÖvcvb‡j kvLvhy³ Kve©b KvVv‡gv we`¨gvb| cÖkœ-04| weDU-2 Bb I 2-nvB‡Wªvw· †cÖvcvbwqK GwmW Df‡qiB †÷wiI mgvYyZv m¤¢e -e¨vL¨v Ki| [BUTex 2018-19] DËi: weDU-2 Bb (CH3 – CH = CH – CH3) C = C CH3 H CH3 H C = C CH3 H CH3 H Cis-mgvYy trans-mgvYy CH3CCOOH H OH 2-hydroxy propanioc acid (j¨vKwUK GwmW) H C OH COOH CH3 d j¨vKwUK GwmW OH C H COOH CH3 llj¨vKwUK GwmW j¨vKwUK GwmW †h‡nZy cis-trans mgvYyZv I Av‡jvK mgvYyZv DfqB †÷wiI mgvYyZvi AšÍfz©³, ZvB Df‡qB †÷wiI mgvYyZv we`¨gvb| cÖkœ-05| U‡UvgvwiRg ev, U‡UvgvwiZv Kx? †cÖvcv‡bvb U‡UvgvwiZv cÖ`k©b K‡i; e¨vL¨v Ki| [Kz.‡ev. 2019; w`.‡ev. 2019; Awfbœ cÖkœ 2018] DËi: Concept-05, Type-01(A) cÖkœ-06| R¨vwgwZK mgvYyZv Kx? [gv`ªvmv †ev. 2019; P.‡ev. 2015] DËi: Concept-05, Type-01(B) cÖkœ-07| KvBivj †K›`ª ev, KvBivj Kve©b Kx? j¨vKwUK GwmW Av‡jvK mgvYyZv cÖ`k©b K‡i †Kb? [iv.‡ev. 2015, 2016; w`.‡ev. 2016; P.‡ev. 2017; Kz.‡ev. 2019; Awfbœ cÖkœ 2018; h.‡ev; wm.‡ev. 2017; e.‡ev. 2017; gv`ªvmv †evW©. 2019] DËi: Concept-05, Type-02(B) cÖkœ-08| A¨vw›UcW, GbvbwmIgvi Kx? [h.‡ev. 2019; gv`ªvmv †ev. 2018; P.‡ev. 2017; Xv.‡ev. 2015] DËi: Concept-05, Type-02(B) cÖkœ-09| †iwmwgK wgkÖY Kx? †iwmwgK wgkÖY Av‡jvK mwµq Kxbv, e¨vL¨v Ki| [Xv.‡ev. 2019, 2017; h.‡ev. 2017; Kz.‡ev.; e.‡ev. 15; P.‡ev. 16, 2019; h.‡ev. 2016, 2019] DËi: Concept-05, Type-02(B) cÖkœ-10| †h․‡Mi GbvbwmIgvi wjL: [BUET. 2019-20] CHO HO H CH2OH DËi: CHO H OH CH2OH cÖkœ-11| Møy‡KvR AYy‡Z KqwU KvBivj Kve©b Av‡Q? [BUET. 2019-20] DËi: 4wU

CHEMISTRY PLUS •Re imvqb 547 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. wb‡¤œi †Kvb †h․MwU R¨vwgwZK mgvYyZv cÖ`k©b K‡i?[DU. 19-20; JU-D.18-19] A. (CH3)3N B. CH3CH = CH2 C. (CH3)2NH D. CH3CH = CHCH3 mwVK DËi: D. CH3CH = CHCH3 e¨vL¨v: R¨vwgwZK ev wmm-UªvÝ mgvYyZv †Pbvi Dcvqt Kve©b-Kve©b wØ-eÜb hy³ ‡h․M n‡e| wØ-eÜb hy³ †h․‡M Kve©‡bi Dfq cv‡k wfbœ Kvh©Kix g~jK n‡e| CH3CH = CHCH3 †h․MwUi 2wU wÎgvwÎK mgvYy Av‡Q: CH3 CH3 C = C H H sis mgvYy CH3 H C = C H CH3 cis mgvYy Trans mgvYy Trans mgvYy 02. wb‡gœi †Kvb †h․MwU Optical isomerism ‡`Lvq? [DU-Ka.2017-18; JU.D-2018-19] A. CH2(NH2)COOH B. CH3CH(NH2)COOH C.(CH3)2CHCOOH D. CH3CH2COOH mwVK DËi: B. CH3CH(NH2)COOH e¨vL¨v: CH3CCOOH H NH2 ‡h․‡M KBivj Kve©b we`¨gvb e‡j †h․MwU optical isomerism ev Av‡jvK mgvYyZv cÖ`k©b K‡i| 03. CH3CH=CHCH3 ‡h․MwUi KqwU †÷wiImgvYy i‡q‡Q? [DU. 2014-15; BSMRSTU:2019-20; JUST:2019-20] A. 2 B. 3 C. 4 D. None mwVK DËi: A. 2 e¨vL¨v: CH3CH=CHCH3 †h․MwU‡Z cis I trans GB `yB ai‡bi †÷wiI mgvYy i‡q‡Q| C = C H CH3 H CH3 sis C = C H H CH3 CH3 trans 04. wb‡gœi †h․M¸‡jvi g‡a¨ †KvbwU R¨vwgwZK mgvYyZv cÖ`k©b K‡i? [DU. 11-12; JU.2011-12; [DU. 2008-09; DU. 01-02; CU. 06-07; RUET. 13-14] A. CH3CH2CH = CH2 B. (CH3)2C = CHCH3 C. CH3CH = C(Cl)Br D. CH3C(Cl) = CBr2 mwVK DËi: C. CH3CH = C(Cl)Br 05. wb‡gœi †KvbwU AcwUK¨vj AvB‡mvgvi †`‡e bv? [DU. 2010-11, JnU. 2014-15] A. CH3 – CH = CH – C2H5 B. CH3CHOHCOOH C. C6H5 – CH = CHCHOHCOOH D. C6H5CHBrCH3 mwVK DËi: A. CH3 – CH = CH – C2H5 e¨vL¨v: AcwUK¨vj AvB‡mvgvi ev Av‡jvK mgvYyZvi kZ© n‡”Q KvBivj Kveb© _vKv| Dc‡ii B, C, D ‡h․MwUB cÖ‡Z¨KwU‡Z KvBivj Kveb© we`¨gvb| ZvB Giv optical isomer cÖ`kb© Ki‡e wKš‧ A Ack‡b †Kvb KvBivj Kve©b bv _vKvq Zv optical mgvYyZv cÖ`k©b Ki‡e bv| 06. wb‡Pi †h․M¸wji †KvbwUi wmm-UªvÝ mgvYy m¤¢e? [IU:2017-18; NSTU. 19-20; JU.A-2017-18; HSTU.2017-18; DU. 02-03] A. CH3 – CH = CH2 B. CH3 – CH = CH-CH3 C. CH3 – CH3 D. CH3 CH3 mwVK DËi: B. CH3 – CH = CH-CH3 07. wb‡Pi †KvbwU †n‡Þ‡bi mgvYy bq? [DU. 2002-03] A. 2-methyl hexane. B. 2, 2- dimethyl pentane C. 2, 3- dimethyl butane D. 2, 3- dimethyl pentane mwVK DËi: C. 2, 3- dimethyl butane e¨vL¨v: Avgiv Rvwb mgvby n‡Z n‡j AvYweK ms‡KZ wVK _vK‡e wKš‧ MvVwbK ms‡K‡Zi cwieZ©b n‡e| GLv‡b †n‡Þ‡b Kve©b Av‡Q 7 wU Ges 2, 3- dimethyl butane †h․‡M Kve©b Av‡Q 6 wU ZvB Giv ci¯úi mgvby bq| 08. mwVK DËiwU wPwüZ Ki- [DU.1999-2000] A. wPwb Av‡jvK mwµq I WvbN~Yx© B. Møy‡KvR Av‡jvK mwµq I evgN~Yx© C. d«z‡±vR Av‡jvK mwµq I WvbN~Yx© D. mgcwigvY Møy‡KvR I d«z‡±v‡Ri wgkªY evgN~Yx© mwVK DËi: D. mgcwigvY Møy‡KvR I d«z‡±v‡Ri wgkªY evgN~Y©x e¨vL¨v: cvwbi we‡køl‡Yi d‡j my‡µvR mgcwigvY Møy‡KvR I dªy‡±v‡Ri wgkªY evgN~Yx©| evg N~Y©x wPwb Wvb N~Y©x wPwb Giv Av‡jv‡K evg w`‡K evuKvq| Giv Av‡jv‡K Wvb w`‡K euvKvq| D`vniY t BbfvU© wPwb, d«z‡±vR D`vniY t Møy‡KvR, my‡µvR| JnU 01. C4H10O AvYweK ms‡KZ wewkó †h․‡Mi KZwU mgvYy m„wó m¤¢e? [JnU-A.2017-18, DU. 2013-2014] A. 7wU B. 4wU C. 5wU D. 3wU mwVK DËi: A. 7wU 02. `yBwU GbvbwmIgv‡ii mgZzj wgkªY‡K Kx e‡j? [JnU. 2015-16] A. ‡iwmwgK wgkªY B. ‡g‡mv‡h․M C. KvBivj wgkªY D. None mwVK DËi: A. ‡iwmwgK wgkªY e¨vL¨v: cÖwZwU GbvbwmIgvi GK mgZjxq Av‡jvi Zj‡K mgvb †Kv‡Y wecixZ w`‡K †Nvivq e‡j †iwmwgK wgkªY Av‡jvK wbw®…q mgvYy nq, Z‡e cÖwZwU GbvbwmIgvi Av‡jvK mwµq ‡h․M n‡q _v‡K| 03. C5H12 Gi †gvU isomers Gi msL¨v KZ? [JnU. 2014-15; BSMSTU-C. 2016-17; DU-7Clg. 2019-20] A. 1 B. 2 C. 3 D. 5 mwVK DËi: C. 3 e¨vL¨v: C5H12 Gi †PBb web¨vm = 2n4 + 1 = 254 + 1 = 3 04. Av‡jvK mwµqZv cwigvcK h‡š¿i bvg wK? [JnU.2010-11, 2007-08] A. †cvjvwiwgUvi B. e¨v‡ivwgUvi C. g¨v‡bvwgUvi D. U¨v‡KvwgUvi mwVK DËi: A. †cvjvwiwgUvi JU 01. ‡KvbwU R¨vwgwZK mgvYyZv cÖ`k©b K‡i? [JU-A4.2017-18; JU.A2.2017-18, JU.A3,2017-18, h.‡ev. 2016] A. Ph2C=CPh2 B. Ph2C = O C. Ph2C=CH2 D. CICH=CHBr mwVK DËi: D. CICH=CHBr 02. WvB bvB‡Uªv UjyBb Gi KZ¸‡jv mgvYy m¤¢e? [JU-A13.2017-18] A. 4 B. 5 C. 6 D. 7 mwVK DËi: C. 6 03. †KvbwU A¨vjwWnvBW I wK‡Uv‡bi mgvYy •Zwi K‡i? (JU-D7.2017-18] A. C3H6O B. C3H8O C. C2H6O D. C4H10O mwVK DËi: A. C3H6O e¨vL¨v: CnH2nO ms‡KZ wewkó †h․M A¨vjwWnvBW, wK‡Uvb I Bb-Aj mgvYy cÖ`k©b K‡i| 04. †KvbwU Av‡jvK mwµq mgvYy †`Lvq? [JU-A. 2016-17; RU.F.2015-16; BUET.2005-06] A. CH3CH(NH2)-COOH B. (CH3)3-COOH C. CH3-CH=CH-CH3 D. NH2CH2CH2NH2 mwVK DËi: A. CH3CH(NH2)-COOH e¨vL¨v: HCCH3 NH2 COOH ‡h‡nZz A Ackb Gi Kve©b Gi Pvicv‡ki PviwU g~jK Avjv`v ZvB GwU Av‡jvK mwµq mgvYy w`‡e|

548 •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 05. 2-A¨vwg‡bv weD‡Ub I 2-wg_vBj-2-A¨vwg‡bv †cÖv‡cb †h․M `ywU †Kvb mgvYy Zv cÖ`k©b K‡i? [JU. 2012-2013] A. wkKj mgvYyZv B. Kvh©Kix g~jK mgvYyZv C. Ae¯
vb mgvYyZv D. †KvbwUB bq mwVK DËi: A. wkKj mgvYyZv 06. †KvbwU R¨vwgwZK mgvYyZv cÖ`k©b K‡i bv? [JnU.2015-16; JU. 2011-12; KU.2017-18; BSMRSTU.2013-14; CU. 2007-08] A. 1-†cw›Ub B. 2-†cw›Ub C. 3-†nw·b D. 2-weDwUb mwVK DËi: A. 1-†cw›Ub 07. C4H9I †h․‡Mi mgvYy msL¨v KqwU? [JU. 2012-2013] A. 1 wU B. 2 wU C. 3 wU D. 4 wU mwVK DËi: D. 4 wU e¨vL¨v: C4H9I = 4, C4H8I2 = 10 08. C6H14 †h․‡Mi KqwU mgvYy Av‡Q? [JU. 2010-11, RU. 2011-12; 2010-11] A. 3 wU B. 4 wU C. 5 wU D. 6 wU mwVK DËi: C. 5 wU 09. wb‡gœi †h․M¸‡jvi g‡a¨ †KvbwU R¨vwgwZK mgvYyZv cÖ`k©b K‡i bv? [JU. 2009-2010] A. H3CCH=CHCl B. CH3CH=CHC2H5 C. CH3CH=CH2 D. ClCH=CHBr mwVK DËi: C. CH3CH=CH2 10. †nÞv‡bvb-2 I †nÞv‡bvb-3 ci¯ú‡ii- [JU. 2009-2010] A. wkKj mgvYy B. Ae¯
vb mgvYy C. U‡Uvgvi D. ‡gUvgvi mwVK DËi: D. ‡gUvgvi e¨vL¨v: Avm‡j †gUvgvi Ges Ae¯
vb mgvYyZv GKB iKg| Z‡e w؇hvRx Kvh©Kix g~jK Ae¯
vb cwieZ©‡K Avgiv †gUvgvi ewj| RU 01. †h †h․‡M `yÕwU KvBivj Kve©b cigvYy Av‡Q- [RU. 2019-20; Xv.†ev: 2016] A. 2-nvBWªw· †cÖvcvbwqK GwmW B. 2-wg_vBj †cÖvcvbj-2 C. weDUvb-2,3-WvBIj D. weDUvbj-2 mwVK DËi: C. weDUvb-2,3-WvBIj e¨vL¨v:Kve©‡bi Pvi cv‡ki PviUv g~jK hw` Avjv`v nq Z‡e gvSLv‡bi Kve©b‡K ejv nq KvBivj Kve©b| `ywU KvBivj Kve©b _vKv m‡Ë¡I GwU KL‡bv Av‡jvK mwµq n‡Z cv‡i bv| KviY GB †h․‡M cÖwZmg Zj we`¨gvb| CH3 H C * OH H C * OH CH3 02. wb‡Pi †Kvb †h․MwUi R¨vwgwZK mgvYyZv i‡q‡Q? [RU-Ka,Set-3: 2018-19] A. 1, 1-WvB‡K¬v‡ivB‡_b B. 1,1-WvB‡K¬v‡ivBw_b C. 1, 2-WvB‡K¬v‡ivB‡_b D. 1, 2-WvB‡K¬v‡ivBw_b mwVK DËi: D. 1, 2-WvB‡K¬v‡ivBw_b e¨vL¨v: 1, 2-WvB‡K¬v‡ivBw_b Gi ivmvqwbK ms‡KZ- ClCH = CHCl GLv‡b, wØ-eÜbhy³ Kve©‡bi mv‡_ GKB RvZxq †Kv‡bv cigvYy ev g~jK †bB ZvB Bnv R¨vwgwZK mgvYyZv w`‡e| 03. C5H10O †h․MwUi m¤¢ve¨ mgvYy KZwU? [RU-F3.2017-18, JnU. 2011-12] A. 5 B. 6 C. 7 D. 4 mwVK DËi: C. 7 e¨vL¨v: CnH2nO Gi †ÿ‡Î- n = 5 n‡j mgvYy msL¨v –11 (7) 04. †ebwRb ej‡q `yBwU cÖwZ¯
vcK hy³ _vK‡j, †h․MwUi KqwU mgvYy m¤¢e? [RU-H3.2017-18;BAU-kha-2018-19] A. 1 B. 2 C. 3 D. 4 mwVK DËi: C. 3 e¨vL¨v: ‡ebwR‡bi g‡bv cÖwZ¯
vc‡Ki †Kvb mgvYy †bB| wKš‧ WvB cÖwZ¯
vc‡Ki 3wU mgvYy m¤¢e| 05. wb‡Pi †Kvb †h․MwUi †g‡mv-dig Av‡Q? [RU-H2.2017-18; h. †ev:2016] A. CH3–CH2–CH2–CH3 B.CH3–CH(OH) –CHCl–CH3 C. CH3–CH(OH)–CH(OH) – CH3 D. CH3–CH2–CH(OH)–CH3 mwVK DËi: C. CH3–CH(OH)–CH(OH)–CH3 e¨vL¨v: `yBwU m`„k KvBivj Kve©b hy³ †h․‡Mi GK Aa©vsk Aci Aa©vs‡ki `c©b cÖwZwe¤^ n‡j Zv‡`i †g‡mv †h․M e‡j| CH3 CH H C H C C H OH CH H C C C OH CH CH3 06. C3H8O AvYweK ms‡KZ †_‡K cÖvß mgvYyi msL¨v KqwU? [RU-C. 16-17; BUTex-16-17, 14-15; BUET. 07-08; RU. 16-17; h:†ev:- 15] A. 2 B. 4 C. 1 D. 3 mwVK DËi: D. 3 e¨vL¨v:A¨vj‡Kvnj I B_vi CnH2n+2O 07. WvB‡K¬v‡iv‡cÖv‡cb (C3H6Cl2) Gi KqwU MvVwbK mgvYyZv Av‡Q? [RU-H.2016-17] A. 4 B. 6 C. 8 D. 10 mwVK DËi: A. 4 08. C6H5–CH3(Cl) †h․MwUi KqwU mgvYy? [RU. 2012-2013, wm.‡ev. 2015] A. 2 B. 4 C. 5 D. 3 mwVK DËi: D. 3 09. d-j¨vKwUK Gwm‡Wi Av‡cwÿK AveZ©b KZ? [RU. 2008-2009] A. +2.24 B. -2.24 C. +4.48 D. -4.28 mwVK DËi: A. +2.24 e¨vL¨v: d-j¨vKwUK Gwm‡Wi Av‡cwÿK AveZ©b = +2.24° Ges l-j¨vKwUK Gwm‡Wi Av‡cwÿK AveZ©b = -2.24° 10. Rjxq `ªe‡Y 20°C ZvcgvÎvq wPwbi Av‡cwÿK AveZ©b- [RU. 2007-08, JU. 2007-08, 2009-10] A. +66.5° B. +65.5° C. -66.5° D. -65.5° mwVK DËi: A. +66.5° e¨vL¨v: Rjxq `ªe‡Y, 20°C ZvcgvÎvq wPwbi Av‡cwÿK AveZ©b + 66.5° Zv wbgœ iƒ‡c cÖKvk Kiv nq| 20 o D 66.5 11. MwZkxj Kvh©Kix g~jK mgvYy Zv ej‡Z eySvq- [RU. 2007-2008] A. †gUvgvwiRg B. U‡UvgvwiRg C. †÷wiI mgvYy Zv D. Kvh©Kix mgvYyZv mwVK DËi: B. U‡UvgvwiRg e¨vL¨v: wK‡Uv dig Bbj dig G `ywUi g‡a¨ Avf¨šÍwib cwieZ©b N‡U ZvB U‡UvgvwiRg N‡U| CU 01. CH3COCH3, CH3CH2CHO Ges CH2 = CH – CH2OH ci¯úi | [CU. 2015-16] A. †PBb mgvYy B. Ae¯
vb mgvYy C. Kvh©Kix g~jK mgvYy D. MwZkxj Kvh©Kix g~jK mgvYy E. wmm&-UªvÝ mgvYy mwVK DËi: C. Kvh©Kix g~jK mgvYy 02. CH3-O-CH3 Ges CH3CH2OH Gi g‡a¨ we`¨gvb mgvYyZv- [CU.2011-2012, 2005-2006, JU. 12-2013, MBSTU-.2017-18] A. Ae¯
vb mgvYyZv B. †÷wiI mgvYyZv C. Kvh©Kvixg~jK mgvYyZv D. MwZkxj Kvh©Kvixg~jK mgvYyZv mwVK DËi: C. Kvh©Kvixg~jK mgvYyZv e¨vL¨v: Kvh©Kix g~jK mgvYyZvt Kvh©Kix g~j‡Ki wfbœZvi Kvi‡Y m„wó nq| †hgbt C2H6O Gi `ywU mgvYyZv i‡q‡Q| h_vt B_vbj (C2H5OH) I WvBwg_vBj B_vi (CH3OCH3)

CHEMISTRY PLUS •Re imvqb 549 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. Møy‡Kv‡Ri KZ¸‡jv †÷wiI mgvYy m¤¢e? [KU-A,Set-Kha:2018-19] A. B. 14 C. 15 D. 16 mwVK DËi: D. 16 e¨vL¨v: Møy‡KvR G 4wU KvBivj Kve©b we`¨gvb ZvB †÷wiI mgvYy 2 n = 24 =16 wU| 02. U‡UvgvwiRg cÖ`k©b K‡i †Kvb †h․MwU? [KU-A,Set-Kha:2018-19, JUST. 2015-16, iv.‡ev.; w`.‡ev. 2016] A. †cÖvcv‡bvb B. †cÖvwcb C. †cÖvcvbj D. †cÖvcvbwqK GwmW mwVK DËi: A. †cÖvcv‡bvb e¨vL¨v: †cÖvcv‡bvb ¯^Ztõ~Z©fv‡e †cÖvwcb-2 Aj m„wó K‡i| †cÖvcv‡bvb I †cÖvwcb2 Aj ci¯ú‡ii U‡Uvgvi mgvYy| CH3CCH3 O ⇌ CH3C = CH2 OH 03. wb‡Pi MvVwbK ms‡KZwU nj- [KU. 2006-2007] C H H C C H H H CH3 3C A. UªvÝ-1, 2-WvB wg_vBj mvB‡K¬v‡cÖv‡cb B. wmm-1, 2-WvB wg_vBj mvB‡K¬v‡cÖv‡cb C. 1,2-WvB wg_vBj mvB‡K¬v‡cÖv‡cb D. WvB wg_vBj mvB‡K¬v‡cÖv‡cb| mwVK DËi: B. wmm-1, 2-WvB wg_vBj mvB‡K¬v‡cÖv‡cb IU 01. C6H4(CH3)(Cl) †h․MwUi KZwU mgvYy m¤¢e? [IU. 2019-20; wm.†ev: 2015] A. 2 B. 3 C. 4 D. 6 mwVK DËi: B. 3 02. †Kvb ms‡K‡Z †gUvgvi mgvYy j¶¨ Kiv hvq- [IU-F,Set-B:2018-19] A. C3H7O B. C4H10O C. C4H8O D. C4H8O2 mwVK DËi: B. C4H10O e¨vL¨v: C4H10O Gi wZbwU B_vi †gUvgvi mgvYy Av‡Q| CH3-O-CH2CH2CH3, CH3CH2-O-CH2CH3, CH3-OCH(CH3)2 BRU 01. 3˚-Kv‡e©vwbqvg Avq‡bi KqwU nvBcviKbRy‡Mkb MVb m¤¢e? [BRU. 2012-13] A. 9 B. 12 C. 6 D. 15 mwVK DËi: A. 9 e¨vL¨v: 3 Kve©wbqvg Avq‡b 3wU -Kve©b I 9wU -nvB‡Wªv‡Rb _v‡K Zvn‡j - C I -H Gi †gvU eÜb msL¨v nq 9wU ZvB 3 Kve©wbqv‡g 9wU nvBcvi KbRy‡Mkb m¤¢e| BU 01. CH3CH2OH Gi mgvYy †Kvb&wU? [B.U. 2012-2013] A. C2H5OH B. CH3OCH3 C. C2H5O D. CH3COOH mwVK DËi: B. CH3OCH3 STEP 02 ANALYSIS OF SCIENCE & TECHNOLOGY QUESTION SUST 01. †KvbwU Av‡jvK mwµq A¨vj‡Kvnj? [SUST-B. 2019-20] A. CH3–CH(OH)–CH2–CH3 B. CH3–CH(OH)–CH3 C. CH3–C(OH)2CH2CH3 D. HO–CH2–CH2–CH2–OH E. HOCH2–CH(OH)–CH2OH mwVK DËi: A. CH3–CH(OH)–CH2–CH3 e¨vL¨v: CH3–CH(OH)–CH2–CH3 GwU Av‡jvK mwµq KviY Av‡jvK mwµq n‡Z n‡j KvBivj Kve©b _vK‡Z nq| HCOH CH3 CH2–CH3 02. Rjxq `ªe‡Y Møy‡KvR `ªexf~Z n‡j Zv‡Z KqwU AcÖwZmg Kve©b _v‡K? [SUST-B,18-19, h.‡ev. 2016] A. 2 B. 3 C. 5 D. 4 E. 6 mwVK DËi: D. 4 e¨vL¨v: Rjxq `ªe‡Y Møy‡KvR‡K `ªexf~Z Kiv n‡j Zv‡Z 4wU AcÖwZmg ev KvBivj Kve©b _v‡K| JUST 01. CH3CH2CH2CH3 AlCl3 HCl 300C –––––––––––––– CH3CH(CH3)CH3 GwU Kx ai‡Yi wewµqv? [JUST-B.2017-18] A. Substitution reaction B. Elimination reaction C. Isomerization reaction D. Addition reaction mwVK DËi: C. Isomerization reaction e¨vL¨v: CH3CH2CH2CH3 AlCl3 HCl 300C –––––––––––––– CH3CHCH3 CH3 wewµqvwU‡Z MVb cwieZ©b n‡q‡Q| ZvB wewµqvwU mgvYyKiY wewµqv| MBSTU 01. wb‡Pi †KvbwU R¨vwgwZK mgvYyZv cÖ`k©b K‡i?[MBSTU-B. 2019-20; h.†ev: 2016] A. ClCH=CHClB. CH2=CHCl C. CH2=CH2 D. Cl2C=CH2 mwVK DËi: A. ClCH=CHCl 02. CHOCH(OH)CH(OH)CHO †h․MwUi †ÿ‡Î †KvbwU mwVK? [MBSTU-C. 2019-20] A. WvbN~Y©x B. evgN~Y©x C. †i‡mwgK wgkÖY D. Av‡jvK wbw®…q mwVK DËi: D. Av‡jvK wbw®…q e¨vL¨v: CHOCH(OH)CH(OH)CHO GwU GKwU n‡jv †g‡mv †h․M †g‡mv †h․Mmg~n Av‡jvK wbw®…q 03. †Kvb ai‡Yi †h․‡Mi `ªe‡Yi †fZi w`‡q GK mgZjxq Av‡jv Pjvi mgq Zv AvewZ©Z nq? [MBSTU-A1.2017-18] A. B_vi B. KvBivj †h․M C. ‡iwmwgK wgkÖY D. †g‡mv †h․M mwVK DËi: B. KvBivj †h․M e¨vL¨v: KvBivj Kve©b wewkó †h․Mmg~n Av‡jvK mwµq| †iwmwgK wgkÖY 50% d I 50% l mgvYyi mgwgkÖY nIqvi d‡j Zv AvcwZZ Av‡jv‡K †Kvb w`‡KB AveZ©b Ki‡Z cv‡i bv| 04. UviUvwiK GwmW Gi †÷wiI mgvYy? [MBSTU-A.2016-17, HSTU. 2011-12] A. 3 B. 2 C. 4 D. ‡Kvb mgvYy †bB mwVK DËi: C. 4 e¨vL¨v: UviUvwiK Gwm‡Wi ms‡KZ HOCHCOOH HOCHCOOH D³ Gwm‡W KvBivj Kve©‡bi msL¨v = 2 ‡÷wiI mgvYy msL¨v = 2 n =22 = 4wU 05. wb‡Pi †Kvb †h․MwU Av‡jvK mgvYyK? [MBSTU-C. 2018-19, 2016-17] A C2H5CHOHC2H5 B. CH3CHOHBr C. BrCH2CH2OH D. CH3CHOHCH3 mwVK DËi: B.CH3CHOHBr e¨vL¨v: CH3 OH | C– | H Br, 1-‡eªv‡gv B_vbj †h․‡M 1bs Kve©bwU KvBivj Kve©b ZvB D³ †h․MwU Av‡jvK mgvYy|

550 •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 BSMRSTU 01. C4H8F2 †h․‡Mi mgvYyi msL¨v KqwU? [BSMRSTU-A.2017-18] A. 10 wU B. 8 wU C. 6 wU D. 4 wU mwVK DËi: A. 10 wU PUST 01. C2H3Cl3 ms‡KZ Øviv KZwU †h․M MVb m¤¢e? [PUST. 2019-20] A. 2 B. 3 C. 4 D. 5 mwVK DËi: A. 2 e¨vL¨v: wb‡¤œv³ `ywU Ae¯
vb mgvYy cvIqv hvqÑ H– C | H | H – C – | Cl | Cl Cl I H– C – | H | Cl – C – | H | Cl Cl 02. wb‡Pi †KvbwU Av‡jvK mgvYyZv cÖ`k©b K‡i? [PUST-B.2017-18; CU.F.2015-16; JU.2011-12; CU.2011-12, 2015-16] A. CH3CH2CH2OH B. CH3CHOHCOOH C. CH3CH2CHO D. CH3CH2COOH mwVK DËi: B. CH3CHOHCOOH e¨vL¨v: j¨vKwUK Gwm‡W KvBivj Kve©b _vKvq GwU Av‡jvK mgvYyZv cÖ`k©b K‡i| CVASU 01. ‣Re †h․‡Mi AYy‡Z `ywU wfbœ cÖKvi AcÖwZmg Kve©b cigvYy _vK‡j H †h․‡Mi KqwU Av‡jvK mwµq mgvYy m¤¢e? [CVASU:2018-19] A. 1 B. 2 C. 3 D. 4 mwVK DËi: D. 4 e¨vL¨v: Av‡jvK mwµq mgvYy = 2 n (n KvBivj Kve©b) 2wU KvBivj ev AcÖwZmg Kve©b _vK‡j Av‡jvK mwµq; mgvYy = 2 2 = 4wU DU Technology 01. weDwUb-1 Ges weDwUb-2 †Kvb ai‡bi mgvYy? [DU-Projukti. 2019-20] A. †PBb mgvYy B. Ae¯
vb mgvYy C. †gUvgvi D. U‡Uvgvi mwVK DËi: B. Ae¯
vb mgvYy STEP 03 ANALYSIS OF ENGINEERING & BUTex QUESTION BUET 01. wb‡Pi †Kvb †h․MwUi R¨vwgwZK mgvYyZv i‡q‡Q? [BUET: 2011-2012] A. 1, 1-WvB‡K¬v‡iv‡B‡_b B. 1, 1-WvB‡K¬v‡ivBw_b C. 1, 2-WvB‡K¬v‡ivB‡_b D. 1, 2-WvB‡K¬v‡ivBw_b mwVK DËi: D.1, 2-WvB‡K¬v‡ivBw_b 02. WvB‡eªv‡gv‡ebwRb (C6H4Br2) Gi mgvYy KqwU? [BUET: 2011-2012] A. GKwU B. `ywU C. wZbwU D. PviwU mwVK DËi: C. wZbwU e¨vL¨v: †ebwRb ej‡q `ywU cÖwZ¯
vcK _vK‡j mgvYy nq 3 wU| 03. wb‡Pi †Kvb †h․‡M AcÖwZmg Kve©b Av‡Q? [BUET. 2002-03] A. bCb a a B. bCc a a C. bCd a c D. bCd a a DËi: C. KUET 01. C2IBrClF AvYweK ms‡KZ wewkó †h․‡Mi mgvYyi msL¨v n‡jvÑ [KUET. 2015-16] A. 2 B. 3 C. 4 D. 5 E. 6 mwVK DËi: E. 6 e¨vL¨v: EZ mgvYyZv: High priority atom ¸‡jv Restricted carbon Gi GK cv‡k _vK‡j Syn Ges AvovAvwofv‡e _vK‡j Anti mgvYy nq| High priority atom ej‡Z GKB Kve©‡b `ywU Avjv`v cigvYy Gi g‡a¨ hvi cvigvYweK msL¨v †ewk Zv‡K †evSvq| 02. bx‡Pi †KvbwU Av‡jvK mgvbyZv kZ© bq? [KUET. 2008-09] A. c`v_©‡K Av‡jv‡K mwµq n‡Z nq B. Cis I Trans GB iK‡gi mgvby m„wó K‡i C. KvBivj Kve©b _vK‡ZB nq D. Zj mgvewZ©Z Av‡jvi Zj‡K wfbœ wfbœ w`‡K AveZ©b K‡i E. wfbœ KbwdMv‡ik‡bi `y‡Uv Av‡jvK mgvby m„wó K‡i| DËi: B. Cis I Trans GB iK‡gi mgvby m„wó K‡i| CUET 01. wb‡Pi cÖkœ¸‡jv †_‡K mwVK DËi †e‡Q bvI| [CUET. 2014-15] i) bx‡Pi †KvbwU wmm-UªvÝ mgvYy Gi D`vniY ii) bx‡Pi †KvbwU †c‡Uªvj Gi Kve©b wkK‡ji ‣`N©¨? A. Maleic acid; C5 – C12 B. Lactic acid; C13 – C18 C. Butane; C15 – C18 D. Dimethyl Either; C12 to C15 mwVK DËi: A. Maleic acid; C5 – C12 e¨vL¨v: †c‡Uªv‡j nvB‡WªvKve©‡bi †iÄ (C5–C12) BUTex 01. wb‡¤œi †KvbwU U‡UvgvwiRg †`Lvq? [BUTex. 2015-16, HSTU. 2011-12] A. C2H6O B. C2H4O C. C4H8 D. C3H6O mwVK DËi: D. C3H6O e¨vL¨v: H3C – CO – CH3 ⇌ H2C = C(OH) – CH3 wK‡Uv MVb Bbj MVb [mvaviYZ ‡cÖvcv‡bvb I A¨vwm‡Uv-A¨vwmwUK G÷vi G `ywU †h․‡Mi g‡a¨ U‡UvgvwiRg †`Lv hvq] 02. H3C-CH=CH-CH3 (Butene-2) ‡h․MwU †Kvb ai‡bi mgvYyZv cÖ`k©b K‡i? [BUTex. 2011-12, w`.‡ev. 2016] A. Av‡jvK mgvYyZv B. wkKj mgvYyZv C. wmm-UªvÝ mgvYyZv D. Ae¯
vb mgvYyZv mwVK DËi: C. wmm-UªvÝ mgvYyZv STEP 04 ANALYSIS OF MEDICAL & HSC QUESTION MAT 01. wb‡¤œi †KvbwU Kve©bvBj †h․‡Mi mgvYyZvi mwVK D`vniY bq? [MAT. 07-08] A. wK‡Uv-Bbj U‡UvgvwiRg : †cÖvcvb¨vj B. †PBb mgvYyZv : 2-wg_vBj †cÖvcvb¨vj C. Ae¯
vb mgvYyZv : 3-†c›Uv‡bvb D. Kvh©Kix g~jK mgvYyZv : A¨vivBj A¨vj‡Kvnj mwVK DËi: A. wK‡Uv-Bbj U‡UvgvwiRg : †cÖvcvb¨vj 02. †KvbwU A¨vj‡Kvn‡ji mgvYyZv bq? [MAT. 2005-06] A. Kvh©Kix g~jK B. Ae¯
vb C. †PBb D. Uviwmqvwi mwVK DËi: D. Uviwmqvwi 03. ‡KvbwU KvVv‡gvMZ mgvYyZvi cÖKvi‡f` bq? [MAT. 2003-04, 2014-15] A. Ae¯
vb mgvYyZ B. U‡UvgvwiZv C. ‡gUvgvwiZv D. ‡÷wiI mgvYyZv mwVK DËi: D. ‡÷wiI mgvYyZv DAT 01. C6H4Cl2 Gi KqwU mgvYy m¤¢e? [DAT. 2004-05] A. 4 B. 2 C. 3 D. 1 mwVK DËi: C. 3 Board Ques. 01. KvBivj †K›`ªwewkó A¨vj‡Kvnj †KvbwU? [MAT;2014-15 ; JU–D. 2016-17; RU. 2009-2010, Xv.‡ev. 2016] A. 2-wg_vBj-2 weDUvbj B. 2-wg_vBj-1 weDUvbj C. weDUvbj-2 D. 3-wg_vBj weDUvbj-1 mwVK DËi: B. 2-wg_vBj-1 weDUvbj Ges C. weDUvbj-2 e¨vL¨v: H3CCH2CCH3 OH H weDUvbj-2 CH3–CH2 H | – C – | CH3 CH2–OH 2wg_vBj-1-weDUvbj

CHEMISTRY PLUS •Re imvqb 551 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 CONCEPT 06 A¨v‡iv‡gwUK nvB‡WªvKve©b Item- 01: Aromatic kãwU MÖxK kã Aroma ‡_‡K G‡m‡Q hvi A_© myMwÜ| †ebwRb ev †ebwRb m`„k †h․MB A¨v‡iv‡gwUK nvB‡WªvKve©b| A¨v‡iv‡gwUK nvB‡WªvKve©b †K A¨vwib e‡j| jmwg_ Gi g‡Z (1861), cÖwZwU A¨v‡iv‡gwUK †h․‡M †ebwR‡bi KvVv‡gv _v‡K| †ebwRb‡K `n‡bi mgq Kv‡jv e‡Y©i ‡avuqv •Zix nq| Item- 02: A¨v‡iv‡gwUK nvB‡WªvKve©‡bi Drmt †ebwRb (C6H6) ‡K A¨v‡iv‡gwUK †kªwYi g~j †h․M aiv nq| G‡`i MV‡b †ebwRb‡qW ejq _v‡K| †hgbt †ebwRb, †ebwR‡bi RvZK, b¨vd_¨vwjb, A¨vb_ªvwmb| †Kvj M¨vm I †c‡Uªvwjqvg n‡jv A¨v‡iv‡gwUK †h․‡Mi cÖavb Drm| Item- 03: A¨v‡iv‡gwUK †h․‡Mi •ewkó¨ ev A¨v‡iv‡gwUwmwUtÑ wek¦v‡mi Amg iv‡R¨i cÖwZI Av¯
v cvBwek¦v‡mi Amg we‡kl ai‡bi Am¤ú„³Zv iv‡R¨i ‡i‡Rvb¨vÝ KvVv‡gv cÖwZI cÖwZ¯
vcb wewµqv Av¯
v ¯
vwqZ¡ cvB mÂviYkxj -B‡jKUªb we‡kl ai‡bi Am¤ú„³Zv Ñ A¨v‡iv‡gwUK Am¤ú„³Zv A¨vjwK‡bi gZ bq| we‡kl k‡Z© A¨v‡iv‡gwUK nvB‡WªvKve©b H2, X2 ev O3 Gi mv‡_ ms‡hvRb wewµqv Ki‡jI A¨vjwKb ev A¨vjKvB‡bi gZ HX, HOX ev H2SO4 Gi mv‡_ ms‡hvRb wewµqv †`Lvq bv| †ebwRb Br2 + CCl4 KMnO4 + KOH HBr H + /H2O No Reaction nv‡Kj ZË¡Ñ nv‡Kj bxwZt GB bxwZi gva¨‡g †KvbwU A¨v‡iv‡gwUK †h․M Zv Rvbv hvq| G‡Z (4n+2) msL¨K mÂviYkxj B‡jKUªb _v‡K| †hLv‡b n GKwU c~Y© msL¨v| GB bxwZ Abymv‡i mvB‡K¬v‡cÖvwcÖb Avqb, †ebwRb, wdDivb, b¨vc_vwjb A¨v‡iv‡gwUK †h․M wKš‧ 1, 3-mvB‡K¬vweDUvWvBb A¨vv‡iv‡gwUK †h․M bq| †UKwbKt Gevi nv‡Kj wbq‡gi cwie‡Z© Avgvi wbqg wkL Ges †`L †KvbwU †Zvgvi Kv‡Q mnR jv‡M? m~Ît n = 2 x 1 GLv‡b, x = cvBeÜb msL¨v ev wØ eÜb msL¨v| n Gi gvb = c~Y© msL¨v n‡j, A¨v‡iv‡gwUK †h․M; n Gi gvb = fMœvsk n‡j, A¨v‡iv‡gwUK †h․M bq| Gevi we‡kølYx `„wó wb‡q D`vniY jÿ¨ Kii) †ebwR‡b cvB eÜb wZbwU n = 1 2 3 1 2 1 x (x = 3= eÜb msL¨v) n Gi gvb GKwU c~Y© msL¨v ZvB †ebwRb A¨v‡iv‡gwUK †h․M| ii) 2 1 2 1 2 2 1 2 1 n x n myZivs 1, 3 mvB‡K¬vweDUvWvBb A¨v‡iv‡gwUK bq KviY n Gi gvb c~Y© msL¨v bq| Gevi †`L‡j‡Zv, †Zvgvi mgm¨vi RvqMvq Avi mgm¨v bvB| Gevi P‡jv GhveZKv‡j BwÄwbqvwis, wek¦we`¨vjq I †gwW‡K‡j Avmv A¨v‡iv‡gwUwmwU¸‡jv we‡kølY Kwi: bvg MVb B‡jKUª‡bi msL¨v 4n + 2 = B‡jKUªb msL¨v Aromaticity 1. †ebwRb 6 4n + 2 = 6 n = 1 Aromatic 2. A¨vb_ªvwmb 14 4n + 2 = 14 n = 3 Aromatic 3.b¨vc_vwjb 10 4n + 2 = 10 n = 2 Aromatic 4._v‡qvwdb .. S.. lone pair electron †i‡Rvb¨v‡Ý Ask †bq 6 4n + 2 = 6 n = 1 Aromatic

552 •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 bvg MVb B‡jKUª‡bi msL¨v 4n + 2 = B‡jKUªb msL¨v Aromaticity 5. wdDivb .. O.. lone pair electron †i‡Rvb¨v‡Ý Ask †bq 6 4n + 2 = 6 n = 1 Aromatic 6. wcwiwWb N.. lone pair electron †i‡Rvb¨v‡Ý Ask †bq bv 6 4n + 2 = 6 n = 1 Aromatic 7. cvB‡ivj N .. H lone pair electron †i‡Rvb¨v‡Ý Ask †bq 6 4n + 2 = 6 n = 1 Aromatic 8. mvB‡K¬vweDUvWvBBb 4 4n + 2 = 4 n = 1 2 Anti-aromatic 9. mvB‡K¬v‡c›UvWvBBb 4 4n + 2 = 4 4n = 4 – 2 4n = 2 n = 2 4 = 1 2 non Aromatic 10. mvB‡K¬v‡cÖvwcbvBj K¨vUvqb + ev 2 4n + 2 = 2 n = 0 11. mvB‡K¬v‡cÖvwcbvBj A¨vbvqb ev ⊝ – 2 4n + 2 = 4 n = 1 2 Anti-aromatic 12. mvB‡K¬v‡c›UvWvBbvBj A¨vbvqb .. 6 4n + 2 = 6 4n = 6 2 = 4 n = 1 Aromatic 13. mvB‡K¬v‡c›UvWvBbvBj K¨vUvqb + 5 4n + 2 = 4 4n = 4 2 = 2 n = 1 2 Anti-aromatic -B‡jKUªb msL¨v wbY©q: wØ e܇bi msL¨v‡K `yB Øviv ¸Y Ki‡j cvB B‡jKUªbmsL¨v cvIqv hvq| A_©vr cvB B‡jKUªbmsL¨v =2x[x = eÜb msL¨v ] D`vniYt †ebwR‡bi wZbwU wØ eÜb Av‡Q| ZvB cvB B‡jKUªb msL¨v = 2x = 23 = 6 Short Ans Question SAQWRITTEN SUGGESTION BAQ Broad Ans Question cÖkœ-01. wKfv‡e cvIqv hvq, mgxKiYmn wjL? (i) †ebwRb †_‡K bvB‡Uªv‡ebwRb- [RUET. 2019-20] DËi: †ebwR‡bi bvB‡Uªkb wewµqvq bvB‡Uªv‡ebwRb •Zwi nq| + HNO3 H2SO4 60C NO2 (bvB‡Uªv‡ebwRb) + H2O cÖkœ-02. M¨vgvw·b cvDWv‡ii MVb ms‡KZ †jL| [BUET. 2018-19; gv`ªvmv †ev. 2018] DËi: Concept-06, Item-05 cÖkœ-03. †ebwRb ev b¨vc_vwjb ev wdDivb GKwU A¨v‡iv‡gwUK †h․M; e¨vL¨v Ki| [Awfbœ cÖkœ 2018; P.‡ev.; h.‡ev. 2016; e.‡ev.; w`.‡ev. 2015, 2019; Xv.‡ev.; h.‡ev. 2019] DËi: Concept-06, Item-03 (nv‡Kj ZË¡) cÖkœ-04. wb‡¤œi wewµqvwUi g~j Drcv` wjL| [BUET. 2018-19] DËi: + CH3 – CH = CH2 250C H3PO4 –––––––– 30 atm mgvavb:

CHEMISTRY PLUS •Re imvqb 553 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: †ebwRb cÖ¯‧wZ I ‡ebwR‡bi ¸iæZ¡c~Y© wewµqv : †ebwR‡bi e¨envi: (i) AK‡Ub bv¤^vi e„w× (ii) we‡ùviK cÖ¯‧wZ (iii) †ikg I ck‡gi WªvB Iqvwks Ki‡Z (iv) weKviK wn‡m‡e †ebwR‡bi cÖ¯‧wZg~jK wewµqv [cvZb] 3O3 9O2

554 •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 COOH COOH REAL TEST ANALYSIS OF PREVIOUS YEAR QUESTIONS STEP 01 ANALYSIS OF GENERAL UNIVERSITY QUESTION DU 01. `¯Ívi ¸ovi mv‡_ †dbj‡K DËß Ki‡j cvIqv hvq- [DU.2001-02;RU.2017-18,2008-09; KUET.2013-14; CU.2010-11] A. C6H6 B. C12H7 C. C12H8Cl3 D. C14H7Cl2 mwVK DËi: A. C6H6 e¨vL¨v: ‡dbj‡K `¯Ív P~‡Y©i Dcw¯
wZ‡Z 40C ZvcgvÎvi DËß Ki‡j †ebwRb Drcbœ nq| OH Zn ‡dbj ‡ebwRb JnU 01. †ebwR‡bi GKwU mg‡Mv·Ki bvg- [JnU. 2010-2011] A. Chlorobenzene B. Aniline C. Xylene D. Paraffin mwVK DËi: C. Xylene JU 01. + Na + CH3Cl ï®‥ B_vi ? NaCl [JU-D9.2017-18] A. B. C. D. †KvbwUB bq mwVK DËi: A e¨vL¨v: ï®‥ B_v‡i †K¬v‡iv‡ebwRb I wg_vBj †K¬vivB‡Wi mv‡_ avZe †mvwWqv‡gi wewµqvi d‡j UjyBb Drcbœ nq| Cl + Na + CH3Cl + NaCl wewµqvwU DU©R-wdwUM wewµqv bv‡g cwiwPZ| CH3 ï®‥ B_vi/ 02. ¸qvwbb G AvYweK AiweUv‡j mÂvjbÿg B‡jKUª‡bi msL¨v KZwU? [JU. 09-10] A. 6 B. 8 C. 10 D. 14 mwVK DËi: C. 10 e¨vL¨v: mÂvjbÿg B‡jKUª‡bi msL¨v = 4n + 2, ¸qvwb‡bi †ÿ‡Î 2wU ‡ebwRb Pµ Av‡Q| ZvB mÂvjbÿg B‡jKUª‡bi msL¨v = 4 2 + 2 = 10 03. †mvwWqvg †eb‡Rv‡qU I †mvWv jvB‡gi wgkÖY‡K Zxeªfv‡e DËß Ki‡j •Re †h․M A I Na2CO3 Drcbœ nq| ï®‥ AlCl3 Gi Dcw¯
wZ‡Z A †h․M I ï®‥ wg_vBj †K¬vivB‡Wi wgkÖY‡K DËß Ki‡j B •Re †h․M I cvwb Drcbœ nq| B †h․MwUi bvg wK? [JU. 2012-2013] A. †ebwRb B. UjyBb C. RvBwjb D. A¨vwbwjb mwVK DËi: B. UjyBb e¨vL¨v: C6H5COONa+NaOH CaO ––– C6H6+CH3Cl AlCl3 ––– C6H5CH3+HCl RU 01. wb‡¤œi †Kvb †h․MwU A¨v‡iv‡gwUK ag© cÖ`k©b K‡i bv? [RU-C.2016-17, BSMRSTU. 2011-12] A. B. C. D. mwVK DËi: B + D. e¨vL¨v: mvB‡K¬v‡cÖvwc‡b 4n+2 msL¨K B‡jKUªb †bB| Ges me Kve©bB sp3 02. A¨v‡iv‡gwUK †h․‡Mi AYy‡Z mÂviYkxj KZ¸‡jv B‡jKUªb _v‡K? [RU. 2009-10, CU. 2003-04] A. n+2 B. n+4 C. 2n+4 D. 4n+2 mwVK DËi: D. 4n+2 03. 450°C ZvcgvÎv HCCH ‡K DËß Ki‡j wK •Zix nq? [RU.2007-08] A. C6H6 B. C2H4 C. C2H6 D. C3H8 mwVK DËi: A. C6H6 04. C6H6 ev®ú‡K 600-800°C ZvcgvÎvq DËß avZe b‡ji wfZi Pvjbv Ki‡j wK Drcbœ nq? [RU.2007-2008] A. WvB wdbvBj B. UjyBb C. A¨vwm‡Uv‡dv‡bvb D. RvBwjb mwVK DËi: A. WvB wdbvBj e¨vL¨v: 700 – 800°C ZvcgvÎvq DËß b‡ji ga¨ w`‡q †ebwRb ev®ú Pvjbv Ki‡j WvB-wdbvBj Drcbœ nq| 2C6H6 700-800C ––––––– C6H5–C6H5+H2 ‡ebwRb WvBwdbvBj \ CU 01. †ebRvjwWnvB‡W (C6H5 –CHO) “π-electron” KqwU? [CU-A.2019-20; MBSTU. 2019-20] A. 7 B. 8 C. 6 D. 10 mwVK DËi: B. 8 e¨vL¨v: wKš‧ n¨v‡Kj bxwZ Abymv‡i, GLv‡b π B‡jKUªb 6wU| g‡b ivL‡e C = 0 Gi π B‡jKUªb †ebwRb P‡µi †i‡RvbvÝ KvVv‡gv‡Z AskMÖnY K‡i bv| C – H O G †gvU cvB eÜb n‡jv 4wU| ZvB B‡jKUªb 8wU| 02. dzUšÍ UjyB‡bi g‡a¨ †K¬vwib M¨vm Pvjbv Ki‡j wK Drcbœ nq| [CU. 2008-09] A. ‡K¬v‡iv‡ebwRb B. 0-‡K¬v‡ivUjyBb C. P ‡K¬v‡ivUjyBb D. ‡eb‡Rv‡K¬vivBW E. ‡ebRvjwWnvBW mwVK DËi: D. ‡eb‡Rv‡K¬vivBW [Hints: av‡c av‡c N‡U] 03. C2H2 AYy‡Z `y‡Uv Kve©b cigvYyi g‡a¨ B‡jKUª‡bi msL¨v- [CU. 2006-07, RU. 2016-17] A. 2 B.3 C.4 D. 6 E. 8 mwVK DËi: D. 6 e¨vL¨v: HC CH AYy‡Z `ywU Kve©b cigvYyi g‡a¨ GKwU wmMgv eÜb I `ywU cvB eÜb Av‡Q| ZvB B‡jKUªb msL¨v n‡e = 3 2 = 6| KU 01. wdDiv‡b KZ¸‡jv wW‡jvKvBjvBRW B‡jKUªb i‡q‡Q? [IU-D.2019-20] A. 2 B. 4 C. 6 D. 8 mwVK DËi: C. 6 02. †Kvb Gwm‡W †ebwRb wis we`¨gvb? [KU.2012-2013] A. _¨vwjK GwmW B. j¨vKwUK GwmW C. mvw·wbK GwmW D. UviUvwiK GwmW mwVK DËi: A. _¨vwjK GwmW e¨vL¨v: _¨vwjK GwmW: (A¨v‡iv‡gwUK WvBKve©w·wjK GwmW) IU 01. M¨vgvw·b wK? [IU. 2015-16, RU. 2014-15] A. C6H6Cl6 B. CF2Cl2 C. COCl2 D. C4H10O mwVK DËi: A. C6H6Cl6 e¨vL¨v: C6H6 + 3Cl2 m~h©v‡jvK C6H6Cl6 [†ebwRb †n·v †K¬vivBW ev BHC] M¨vgvw·b GKwU kw³kvjx RxevYy bvkK| Cl CH3 CH3 Cl Cl CH3

CHEMISTRY PLUS •Re imvqb 555 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 DU Technology 01. Huckel rule Abymv‡i †ebwRb 4n + 2 bxwZ AbymiY K‡i| (4n + 2) Kx wb‡`©k K‡i? [DU-Projukti. 2019-20] A. -B‡jKUªb B. -B‡jKUªb C. +-B‡jKUªb D. mKj B‡jKUªb mwVK DËi: A. -B‡jKUªb STEP 02 ANALYSIS OF SCIENCE & TECHNOLOGY QUESTION JUST 01. m~h©v‡j‡Ki Abycw¯
wZ‡Z †ebwRb I ïé AlCl3 Gi wgkÖY Drcbœ K‡i- [JUST-B.2017-18, SUST. 2011-12] A. WvB‡K¬v‡iv‡ebwRb B. ‡K¬v‡iv‡ebwRb I HCl M¨vm C. ‡K¬v‡iv‡ebwRb D. ‡UUªv‡K¬v‡iv‡ebwRb mwVK DËi: B. ‡K¬v‡iv‡ebwRb I HCl M¨vm MBSTU 01. n¨v‡Kj iæj †g‡b P‡j bv †Kvb †h․M? [MBSTU-A. 2019-20; C,Set-2:2018-19] A. B. C. OH D. mwVK DËi: D. 02. †ebwRb wK ai‡bi cÖwZ¯
vcb wewµqv †`q? [MBSTU-B1.2017-18] A. B‡jK‡UªvwdwjK B. wbDwK¬IwdwjK C. ‡iwWK¨vj D. ms‡hvRb mwVK DËi: A. B‡jK‡UªvwdwjK e¨vL¨v: A¨v‡iv‡gwUK †h․‡M B‡jK‡UªvwdwjK cÖwZ¯
vcb wewµqv msMwVZ nq| 03. wb‡Pi ‡Kvb •Re †h․‡M GKvwaK †ebwRb ejq we`¨gvb? [MBSTU-A.2016-17; MBSTU-B1.17-18] A. cvBA¨vwib B. A¨vivBj C. A¨vgvBj D. A¨vj‡Kb mwVK DËi: A. cvBA¨vwib e¨vL¨v: cvBA¨vwib •Re †h․‡M 4wU †ebwRb ejq we`¨gvb| Pyrene Gi ivmvqwbK ms‡KZ C16H10 PUST 01. C6H6 Gi ùzUbv¼Ñ [PUST-A1/A2.2016-17] A. 38C B. 56C C. 58C D. 80C mwVK DËi: D. 80C HSTU 01. D¾¡j m~h©v‡jv‡K †ebwRb I †K¬vwi‡bi wgkÖ‡Y Drcbœ nq- [HSTU-B.17-18, CU.2011-2012; CoU.A:2019-20] A. ‡K¬v‡iv‡ebwRb I HCl M¨vm B. M¨vgvw·b C. ‡K¬v‡iv‡ebwRb I cvwb D. UjyBb I HCl M¨vm mwVK DËi: B. M¨vgvw·b e¨vL¨v: D¾j m~h©v‡jv‡K A_ev AwZ‡e¸wb iwk¥i Dcw¯
wZ‡Z †ebwRb wZb AYy †K¬vwi‡bi mv‡_ ms‡hvwRZ n‡q †ebwRb †n·v‡K¬vivBW (C6H6Cl6) Drcbœ K‡i| †ebwRb †n·v‡K¬vivB‡Wi Mvgv () mgvYy‡Ki evwYwR¨K bvg M¨vgvw·b| GwU GKwU Zxeª RxevYybvkK c`v_©| STEP 03 ANALYSIS OF ENGINEERING & BUTex QUESTION BUET 01. wb‡gœi †Kvb Dw³wU †ebwR‡bi (C6H6) Rb¨ cÖ‡hvR¨ bq? [BUET: 2013-14] A. Bnv GKwU A¨v‡iv‡gwUK nvB‡WªvKve©b B. Bnv `ywU mgvYy iƒ‡c we`¨gvb C. Bnv cÖwZ¯
vcb wewµqvq Ask MÖnY K‡i D. Bnv wewµqv K‡i C6H4Cl2 ms‡K‡Zi wZbwU wfbœ †h․M MVb K‡i mwVK DËi: B. Bnv `ywU mgvYy iƒ‡c we`¨gvb e¨vL¨v: Gi ‡Kvb mgvYy m¤¢e bq| KUET 01. †ebRvBj i¨vwWK¨vj, CH2– A¨v‡ivg¨vwUK KviY G‡Z Av‡Q- [KUET-2016-17] A. 6 wU P AiweUvj I 6wU we‡Rvo B‡jKUªb B. 6 wU P AiweUvj I 7wU we‡Rvo B‡jKUªb C. 7 wU P AiweUvj I 6wU we‡Rvo B‡jKUªb D. 7 wU P AiweUvj I 7wU we‡Rvo B‡jKUªb E. 1 wU ‡ebwRb wis I 1wU we‡Rvo B‡jKUªb mwVK DËi: E. 1 wU ‡ebwRb wis I 1wU we‡Rvo B‡jKUªb RUET 01. b¨vd_vwj‡b B‡jKUªb msL¨v KqwU? [JU. 19-20; RUET. 12-13;RU-16-17;KU-Rx:A: 16-17, 14-15 Kz.‡ev. 2016] A. 2 B. 6 C. 10 D. 14 mwVK DËi: C.10 e¨vL¨v: b¨vd_vwj‡bi ms‡KZ G‡Z B‡jKUªb msL¨v 4n + 2 4.2 + 2 = 10wU(n = wis msL¨v] 02. †ebwRb‡K Mvp bvBwUªK GwmW I Mvp mvjwdDwiK Gwm‡Wi mv‡_ wewµqv Kiv‡j †ebwR‡bi- [RUET. 2007-08, CVASU:2018-19] A. mvj‡dv‡bkb N‡U B. bvB‡Uªkb N‡U C. mvj‡dv‡bkb I bvB‡Uªkb DfqB N‡U D. ‡Kvb cwieZ©b N‡U bv mwVK DËi: B. bvB‡Uªkb N‡U e¨vL¨v: wjwLZ cÖkœ-01 Gi e¨vL¨v `ªóe¨| CUET 01. + HNO3 Conc. H2SO4 600C + H2O wewµqvwU‡Z HNO3 Gi f‚wgKv wK? [CUET. 2015-16] A. Base B. Catalyst C. Acid D. Indecator mwVK DËi: A. Base e¨vL¨v: O4SH–H +HO–NO2 NO2 + + HSO4 – + H2O ‡h‡nZz HNO3 wewµqvq OH– †`q ZvB GwU ÿvi wn‡m‡e AvPiY K‡i| [Avi‡nwbqv‡mi gZev` Abymv‡i] Tex.Eng.Clg. 01. Which one rubbing alcohol? [Tex.Eng.Clg. 2019-20] A. methanol B. Ethyl alcohol C. Isopropyl alcohol D. Propanol mwVK DËi: C. Isopropyl alcohol e¨vL¨v: Generally, 70% Rubbing alcohol or iso- propyle alcohol is used as disinfectant STEP 04 ANALYSIS OF MEDICAL & HSC QUESTION MAT 01. cvBb I‡q‡j wb‡Pi †Kvb Dcv`vbwU _v‡K? [MAT- 2018-19] A. B_vbj B. -Uviwcbj C. wg_vbj D. Kve©wjK GwmW mwVK DËi: B. -Uviwcbj 02. e¨env‡ii w`K w`‡q wb‡Pi †KvbwU KxUbvkK? [MAT. 2013-14] A. †ebwRb †n·v‡K¬vivBW B. †UUªv‡K¬v‡ivwg‡_b C. †mvwWqvg nvB‡cv‡K¬vivBU D. wg_vBj †K¬vivBW mwVK DËi: A. †ebwRb †n·v‡K¬vivBW e¨vL¨v: †ebwRb †n·v‡K¬vivBW Gi Aci bvg M¨vgvw·b| BK‡UªvdvBj wbDwK¬IdvBj NO2

556 •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 03. †ebwRb mvj‡dv‡bk‡bi Rb¨ wb‡¤œi KZ C ZvcgvÎvi cÖ‡qvRb nq? [MAT. 2009-10] A. 110 B. 80 C. 100 D. 90 mwVK DËi: C. 100 04. ‡Uwiwjb Drcv`‡bi Rb¨ WvBwg_vBj †Uwi_¨v‡jU Gi mv‡_ wb‡gœi †KvbwU cÖ‡qvRb nq? [MAT 2009-2010] A. †cÖvwcwjb MøvBKj B. Bw_wjb A·vBW C. Bw_wjb nvB‡WªvA·vBW D. Bw_wjb MøvBKj mwVK DËi: D. Bw_wjb MøvBKj e¨vL¨v: †Uwiwjb Drcv`‡bi Rb¨ WvBwg_vBj †Uwi_¨v‡j‡Ui mv‡_ Bw_wjb MøvBKj cÖ‡qvRb nq| 05. b¨vc_vi ùzUbvsK KZ? [MAT 2003-2004] A. 100 – 3000C B. 200 – 4000C C. 100 – 2000CD. 120 – 1800C mwVK DËi: D. 120 – 1800C 06. †KvbwU jNy †Zj wn‡m‡e cwiwPZ? [MAT. 2003-04] A. RvBwjb B. A¨vb_ªvwmb C. †dbj D. wµ‡mvj mwVK DËi: A. RvBwjb I C. †dbj 07. jNy •Z‡ji Dcv`vb bq †KvbwU? [MAT. 2002-03] A. †ebwRb B. UjyBb C. RvBwjb D. KzB‡bvwjb mwVK DËi: D. KzB‡bvwjb 08. A¨v‡iv‡gwUK nvB‡WªvKve©b †ebwR‡bi cÖavb Dr‡mi g‡a¨ †hwU co‡e bvÑ [MAT. 2000-01] A. B_vB‡bi cwjgviKiY B. cÖvK…wZK M¨vm C. AvjKvZiv D. †c‡Uªvwjqvg †Zj mwVK DËi: B. cÖvK…wZK M¨vm DAT 01. wb‡Pi †KvbwU jNy †Z‡ji Dcv`vb bq? [DAT- 2018-19] A. A¨vwbwjb B. wcwiwWb C. wµmj D. †ebwRb mwVK DËi: C. wµmj e¨vL¨v: jNy ‣Zj- †ebwRb, UjyBb, RvBwjb, †dbj, wcwiwWb, _v‡qvwdb, A¨vwbwjb ga¨g ‣Zj- †dbj, wµmj, b¨vc_vwjb, fvix ‣Zj- wµmj, b¨vc_vwjb, KzB‡bvwjb CONCEPT 07 †ebwR‡bi eû cÖwZ¯
vcb wewµqv I A‡_©v-c¨viv wb‡`©kK A‡_v©-c¨viv I †gUv wb‡`©kKÑ A‡_v©-c¨viv wb‡`©kK g~jK (abvZ¥K Av‡ekxq dj) ‡gUv wb‡`©kK g~jK (FYvZ¥K Av‡ekxq dj) bvg ms‡KZ bvg ms‡KZ n¨v‡jv‡Rb –X(–F,–Cl, –Br, –I) bvB‡Uªv g~jK –NO2 nvBWªw·j g~jK –OH mvj‡dvwbK GwmW g~jK –SO3H A¨vjKw· g~jK –OR, -OCH3 mvqv‡bv g~jK –CN A¨vwg‡bv g~jK –NH2 Kve©w·wjK g~jK –COOH A¨vjKvBj cÖwZ¯
vwcZ A¨vwg‡bv g~jK –NHR, –NR2 A¨vjwWnvBW g~jK –CHO A¨vjKvBj cÖwZ¯
vwcZ A¨vwg‡bv g~jK †hgbtÑ wg_vBj g~jK –R ‡hgb:, –CH3 wK‡Uv g~jK >CO mKj A‡_v©-c¨viv wb‡`©kK g~jK mwµqKvix MÖæc wKš‧ n¨v‡jv‡Rb (–X) A‡_v©-c¨viv wb‡`©kK Z_vwcI wbw®…qKvix MÖæc A¨vwbwjwbqvg Avqb g~jK – +NH3 A¨vgvB‡Wv g~jK –CONH2 A‡_v©-c¨viv I ‡gUv wb‡`©k‡Ki kw³gvÎvtÑ mwµq ev wbw®…qZvi µg mwµqKvix MÖæc ev nvi cÖea©K (A‡_v©-c¨viv wb‡`©kK) wbw®…qKvix MÖæc ev nvi wbw®…qK (†gUv wb‡`©kK) kw³kvjx –NH2, –NHR, –NR2, –OH –NO2, – + NR3 , –CF3, –CCl3 mvaviY –OCH3, –OC2H5, –NHCOCH3 –COOH, –COOR, –SO3H, –CHO, –COR `~e©j CH3, –C2H5, R– –F, –Cl, –Br, –I (A‡_©v-c¨viv) g‡b ivLvi hZ †UKwbKt ‡UKwbK-01: hv‡`i gv‡S GKK eÜb Av‡Q Zviv A‡_v©-c¨viv wb‡`©kK Ges hv‡`i gv‡S wØ ev wÎ eÜb Av‡Q Zviv †gUv wb‡`©kK ‡UKwbK-02: (i) C, O, N, S, GB PviwUi †h †Kvb `ywU GK‡Î _vK‡j Zv‡K †gUv wb‡`©kK [FYvZ¥K Av‡ekag©x dj (I)] Ges bv _vK‡j Zv‡K A‡_©v-c¨viv wb‡`©kK [abvZ¥K Av‡ekag©x dj (+I)] e‡j| (ii) A_ev abvZ¥K †g‡mvgvwiK dj wewkó mg~j ¸‡jv A‡_©v-c¨viv wb‡`©kK n‡q _v‡K| †hgb- –CH3, –NH2, –OH, – Cl etc. ‡UKwbK-03: X Gi Zwor FYZ¥KZv Y †_‡K †ewk A‡_©v-c¨vivwb‡`©kK| Avevi Y Gi Zwor FYZ¥KZv X †_‡K †ewk †gUv-wb‡`©kK| XY X > Y A‡_©v-c¨vivwb‡`©kK Ges X < Y †gUv-wb‡`©kK| NC X(N) = 3.0 > Y(C) = 2.5 A‡_©v-c¨vivwb‡`©kK| CN X(C) = 2.5 < Y(N) = 3.0 †gUv-wb‡`©kK| Aek¨B g‡b ivL‡et A‡_v©-c¨viv wb‡`©kK MÖæc¸‡jvi †ebwRb ej‡q n«v‡mi mwµqZvi µgt – O – > – NH2 > – OH > – OCH3 > – NHCOCH3 > R– > – OCOR >Ar – > – X ‡gUv wb‡`©kK MÖæc¸‡jvi †ebwRb ej‡qi mwµqZvi n«v‡mi µg : – + NR3 > – NO2 > – CN > – SO3H > = CO> – COCH3 > – COOH

CHEMISTRY PLUS •Re imvqb 557 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 Short Ans Question SAQWRITTEN SUGGESTION BAQ Broad Ans Question cÖkœ-01 : Av‡ekxq I †g‡mvgvwiK cÖfve D`vniYmn e¨vL¨v Ki| [JnU. 2019-20] DËi : Av‡ekxq dj ev ag©: Kve©b cigvYy I AwaK Zwor FYvZ¥K †g․‡ji (X) cigvYyi g¨eZ©x wmMgv (σ) e܇bi B‡jKUªb `ywU D³ AwaK ZworFYvZ¥K cigvYyi w`‡K AwaK AvK…ó n‡q c‡o| ZLb wmM&gv eÜb AvswkK †cvjvwiZ n‡q _v‡K| Giƒ‡c X cigvYy Øviv wmM&gv e܇bi †cvjvwiKiY‡K X Gi Av‡ekxq dj ev ag© e‡j| C X C R FYvZ¥K Av‡ekxq abvZ¥K Av‡ekxq (–1) dj (+1) dj †g‡mvgvwiK dj: Kve©b cigvYy I AwaK ZworFYvZ¥K †g․‡ji (O) cigvYyi ga¨eZ©x cvB (π) e܇bi B‡jKUª‡bi NbZ¡ AwaK ZworFYvZ¥K cigvYyi w`‡K †ewk cwigv‡Y AvK…ó nq| ZLb cvB (π) eÜb †cvjvwiZ n‡q c‡o| AwaK ZworFYvZ¥K cigvYyi w`‡K cvB (π) e܇bi B‡jKUªb ¯
vbvšÍiY‡K †g‡mvgvwiK (M) dj e‡j| Kve©wbj g~j‡K cvB (π) B‡jKUª‡bi web¨vm wb¤œwjwLZ `yB MV‡bi gvSvgvwS _v‡K †hgb, > C = O Ges > + C = – O Kve©wbj g~j‡Ki cÖK…Z MvVwbK Ae¯
v wb¤œiƒ‡c †jLv nq: > C = O Ges > + C = – OC cÖkœ-02| †ebwRb ejq mwµqKvix g~jK Kx? [Kz.‡ev. 2017] DËi: wb‡R †Póv Ki| cÖkœ-03| NO2 g~jK GKwU †ebwRb ejq wbw®…qKvix I †gUv-wb‡`©kK g~jK, Zv e¨vL¨v Ki| [e.‡ev. 2019] DËi: wb‡R †Póv Ki| REAL TEST ANALYSIS OF PREVIOUS YEAR QUESTIONS STEP 01 ANALYSIS OF GENERAL UNIVERSITY QUESTION DU 01. wb‡Pi †Kvb g~jKwU †ebwRb P‡µ cÖwZ¯
vcb wewµqvq †gUv wb‡`©kK? [DU.04-05; MAT 13-14; 11-12;04-05; DAT. 04-05; CU. 07-08; PUST-A.17-18] A. –OH B. – NH2 C. –NO2 D. –CH3 mwVK DËi: C. –NO2 e¨vL¨v: hv‡`i gv‡S GKK eÜb Av‡Q Zviv A‡_v©-c¨viv wb‡`©kK Ges hv‡`i gv‡S wØ ev wÎ eÜb Av‡Q Zviv †gUv wb‡`©kK FYvZ¥K Av‡ekxq dj (-1) wewkó g~jK †gUv wb‡`©kK| G‡Z wØeÜb ev wÎeÜb _vK‡e †hgbt -NO2,-CHO,-SO3H, -CN, –CO2H JnU 01. wb‡Pi ‡KvbwU A‡_©v-c¨viv wb‡`©kK? [DU-Tech. 2019-20; JnU. 2015-16, BSMRSTU. 2016-17] A. –NH2 B. –NO2 C. –SO3H D. –COOH mwVK DËi: A. –NH2 02. †gUv wb‡`©kK g~jK †KvbwU? [JnU. 2014-15; JnU.2008-09] A. –OH B. –CN C. –NHR D. –NR2 mwVK DËi: B. –CN 03. wb‡Pi †Kvb cÖwZ¯
vcKwU †ebwRb P‡µ A‡_©v I c¨viv wb‡`©kK? [JnU. 2011-12, RU. 2010-11] A. NR3 + B. CONH2 C. CN D. –Cl mwVK DËi: D. –Cl JU 01. wb‡Pi †KvbwU †ebwRb ej‡qi mwµqZv n«vm K‡i? [JU-A3.2017-18; RU-H. 2015-16; DU.2008-09; BRU.2012-13] A. –OH B. –NH2 C. –CHO D. –CH3 mwVK DËi: C. CHO 02. wb‡gœi †KvbwU †ebwRb P‡µ cÖwZ¯
vcb wewµqvq mwµqZv n«vmKvix MÖæc? [JU. 09-10] A. –CN B. –R C. –NHR D. –OR mwVK DËi: A. –CN RU 01. wb‡Pi †Kvb †h․MwU mwµqZv me©vwaK? [RU. 2019-20] A. NO2 B. OCH3 C. D. Cl mwVK DËi: B. e¨vL¨v: †ebwRb P‡µ mwµqZve„w×Kvix A‡_©vc¨viv wb‡`©kK MÖæc hy³ _vK‡j †ebwRb P‡µi mwµqZv e„w× cvq| STEP 02 ANALYSIS OF SCIENCE & TECHNOLOGY QUESTION SUST 01. †ebwRb RvZ‡Ki P‡µ †Kvb MÖæc Dcw¯
Z _vK‡j †ebwRb P‡µi B‡jKUªb NbZ¡ n«vm cvq? [SUST-A.2016-17; JU-A13.2017-18; RU.H3.2017-18; JUST.2016-17; MBSTU.H.2016-17] A. –CH3 B. –NHCOCH3 C. –OH D. –NH2 E. –NO2 mwVK DËi: E. –NO2 e¨vL¨v: NO2 †ebwRb ej‡qi wbw®…qKvix g~jK ev ‡gUv wb‡`©kK e‡j †ebwRb ej‡qi B‡jKUªb NbZ¡ n«vm cvq| 02. wb‡gœi †Kvb g~jK †ebwRb ej‡q B‡jKUªb NbZ¡ me‡P‡q †ekx K‡i I Dnv‡K wewµqvi Rb¨ mwµq K‡i| [SUST 2009-10] A. –NO2 B. –NH2 C. –CH3 D. –OH mwVK DËi: B. –NH2 e¨vL¨v: – O – > – NH2 > – OH > – OCH3 > – NHCOCH3 > R– > – OCOR >Ar – > – X JUST 01. wb‡Pi †Kvb MÖæcwU A¨v‡ivg¨vwUK cÖwZ¯
vcb wewµqvq A‡_©v-c¨viv wb‡`k©K? [JUST-A,Set-Kha 2018-19; DU. 2015-16] A. –COOH B. –OH C. –NO2 D. –CHO mwVK DËi: B. –OH MBSTU 01. †KvbwU ejq mwµqKvix? [MBSTU-C:2018-19,2019-20, PSTU. 2014-15] A. CN B. Cl C. CHO D. –CH3 mwVK DËi: D. –CH3

558 •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 02. †Kvb †h․MwU B‡j‡±ªvwdwjK cÖwZ¯
vcb wewµqvi †ÿ‡Î AwaK mwµq? [MBSTU-C2.2017-18] A. B. C. D. mwVK DËi: A. e¨vL¨v: wg_vBj (– CH3) g~j‡Ki cÖfv‡e †ebwRb ej‡q AYyiYb N‡U| ZLb A‡_©v I c¨viv Ae¯
v‡b B‡jKUªb NbZ¡ e„w× ‡c‡q †ebwRb ejqwU AwaK mwµq nq| G‡ÿ‡Î -CH3 g~j‡K wbtm½ B‡jKUªb hyMj bv _vKv m‡Ë¡I †ebwR‡bi KbRy‡M‡UW wØe܇bi mv‡_ hy³ - CH3 g~j‡Ki C-H e܇bi B‡jKUªbØq †ebwRb ej‡q nvBcvi Kb&Ry‡MwUf ev eÜbwenxb AYyibb bv‡g we‡kl AYy iY‡b AskMÖnY K‡i| wb‡P B‡jK‡UªvwdwjK cÖwZ¯
vcb wewµqvi †ÿ‡Î mwµqZvi µg †`qv njBSMRSTU 01. †ebwRb ej‡q wbw¯…qKvix g~jK †KvbwU? [BSMSTU.Ka.2016-17, RU. 2014-15] A. SO3H B. OH C. NH2 D. CH3 mwVK DËi: A. SO3H STEP 03 ANALYSIS OF ENGINEERING & BUTex QUESTION BUET 01. bx‡Pi †KvbwU †gUv-wb‡`©kK bq hLb †mUv †ebwRb P‡µi mv‡_ _v‡K? [BUET: 2012-2013] A. –C6H5 B. –NO2 C. -CN D. –CO2H mwVK DËi: A. –C6H5 e¨vL¨v: wdbvBj g~jK A‡_©v I c¨viv ev †gUv-wb‡`©kK bq| CUET 01. bx‡Pi cÖkœ¸‡jv †_‡K mwVK DËi †e‡Q bvI| [CUET. 2014-15] i) ‡gUv wb‡`©kK g~jK †KvbwU? ii) wcÖwgqvi M¨v‡mvwj‡bi A‡±b msL¨v †KvbwU? A. SO3H;81 B. – NH2; 100 C. – x; 74 D. – CH3 mwVK DËi: A. SO3H;81 BUTex 01. wb‡gœi Kvh©Kix g~jKmg~‡ni g‡a¨ †KvbwU †gUv-wb‡`©kK? [BUTex. 2014-15] A. –NH2 B. –OH C. –COOH D. –CH3 mwVK DËi: C. –COOH STEP 04 ANALYSIS OF MEDICAL & HSC QUESTION MAT 01. A¨v‡iv‡gwUK ejq mwµqKvix g~jK †KvbwU? [MAT. 2016-17, JU-A4.2017-18; 7clg. 2018-19, Ky.‡ev. 2015) A. CHO B. COOH C. NO2 D. –NH2 mwVK DËi: D. –NH2 CONCEPT 08 UjyBb CH3 cvk¦© wkKj (A¨vwjd¨vwUK Ask) †ebwRb Pµ ev (A¨v‡ivg¨vwUK wbDwK¬qvm ev †K›`ªvsk) (†eb‡Rv UªvB †K¬vivBW) CCl3 Cl2/Br2 30C dzUšÍ jNy HNO3 , GwmwWK K2Cr2O7 ev GwmwWK KMnO4 , O2 , V2O5 /300C CH3 NO2 O – bvB‡UªvUjyBb + CH3 NO2 + H2O p-bvB‡UªvUjyBb CH3 Cl O-†K¬v‡ivUjyBb + CH3 Cl + HCl p-†K¬v‡ivUjyBb n¨v‡jv‡Rb evnK (Fe, I ev jvj P), 20C (‡ebRvBj †K¬vivBW) CH2Cl (‡ebRvBj †K¬vivBW) CHCl2 CS2G `ªexf~Z †µvwgj †K¬vivBW (CrO2Cl2 ), 65% H2SO4 I MnO2 Gi wgkªb Ges V2O5 , 500C Abv`ª© AlCl3 CH3Cl †ebwRb wg_vBj †ebwRb (UjyBb) CH3 [wd«‡Wj µvdU] Cl2 AwZ‡e¸wb iwk¥ Cl2, 111C HNO3 + H2SO4 HNO3 + H2SO4 HNO3 H2SO4 + 20C CH3 NO2 + CH3 NO2 60C CH3 NO2 NO2 60C CH3 NO2 NO2 NO2 g„`y RviY [O] BUvW© wewµqv uRviY wewµqv CHO ‡ebRvjwWnvBW Zxeª RviY [O] COOH ‡eb‡RvwqK GwmW +HCl +HCl +HCl AwZ‡e¸wb iwk¥ AwZ‡e¸wb iwk¥ UjyB‡bi †f․Z ag©: UjyBb GKwU eY©nxb Zij c`v_© Gi Mjbv¼ I ùzUbv¼ h_vµ‡g 198C I 111C UjyBb cvwb A‡cÿv nvjKv (Av‡cwÿK ¸iæZ¡ 0.866) GwU cvwb‡Z A`ªeYxq, wKš‧ A¨vj‡Kvnj I B_v‡i †ek `ªeYxq UjyB‡bi ivmvqwbK ag© CH3Br + Na WªvB B_vi DU©R-wdwUM wewµqv Br UjyB‡bi e¨envi: †iwRb, evwY©m, is, cøvw÷K Gi DËg `ªveK †c‡Uªvj Gi Gw›UbK wn‡m‡e ckg e¯¿vw`i WªvB wK¬wbs `ªveK wn‡m‡e TNT bvgK we‡ùviK Drcv`‡b †ebRvjwWnvBW, †eb‡RvwqK Gwm‡Wi KuvPvgvj wn‡m‡e TNT Cl2, 111C Cl2, 111C Nitration Nitration CH3 F NO2 OH CH3 CH3 Cl OH NH2 ‡ebwRb †_‡K AwaK mwµq NO2 CHO COOH ‡ebwRb †_‡K Kg mwµq

CHEMISTRY PLUS •Re imvqb 559 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 COOC2H5 + KMnO4 KOH COOH [A] + C2H5OH [B] + H2O HCl Short Ans Question SAQWRITTEN SUGGESTION BAQ Broad Ans Question cÖkœ-01: ivmvqwbK wewµqv¸‡jv m¤ú~Y© Ki: C6H4(CH3)2 + H2 Pt/Al2O3 600C –––––––––––– ? [KUET. 2019-20] DËi: C6H4(CH3)2 + H2 Pt/Al2O3 ––––– 600C C6H6 + C2H6 cÖkœ-02: wb‡¤œi wewµqvi g~j Drcv`Kmg~n wjL| [BUET. 2018-19] DËi: + CH3 – Cl Anhydrous AlCl3 ––––––––––––– ? mgvavb: CH3 REAL TEST ANALYSIS OF PREVIOUS YEAR QUESTIONS STEP 01 ANALYSIS OF GENERAL UNIVERSITY QUESTION DU 01. †Kvb †h․MwU A¨vwj‡dwUKI Av‡iv‡gwUK Dfq ag© cÖ`k©b K‡i? [DU-Ka.14-15] A. Benzene B. Cyclohexane C. Toluene D. Chlorobenzene mwVK DËi: C. Toluene e¨vL¨v: CH3 A¨vwjd¨vwUK Ask A¨v‡ivg¨vwUK wbDwK¬qvm UjyB‡b wg_vBj MÖæcwU A¨vwj‡dwUK ag© Ges wdbvBj MÖæcwU A¨v‡iv‡gwUK ag© cÖ`k©b K‡i| RU 01. UjyBb I H2 Gi wgkªY‡K 200o †m. ZvcgvÎvq I cÖfve‡Ki Dci w`‡q Pvjbv Ki‡j cvIqv hvq- [RU.2006-2007] A. M¨vgvw·b B. ‡K¬vivj C. ‡n·v-nvB‡Wªv UjyBb D. A¨vwbwjb mwVK DËi: C. ‡n·v-nvB‡Wªv UjyBb e¨vL¨v: wg_vBj‡ebwRb I nvB‡Wªv‡R‡bi wgkªY‡K 200°C ZvcgvÎvq wb‡K‡ji Dci w`‡q cÖevwnZ Ki‡j wg_vBjmvB‡K¬v‡n‡·b Drcbœ nq| hv ‡n·vnvB‡Wªv UjyBb bv‡g cwiwPZ| 02. 45°C ZvcgvÎvq DËß 65% H2SO4 I MnO2 Gi wgkªY Øviv UjyBb‡K RvwiZ Ki‡j Drcbœ nq- [RU. 2006-07, 2009-10] A. ‡n·vnvB‡Wªv UjyBb B. ‡eb‡RvwqK GwmW C. ‡ebRvjwWnvBW D. RvBwjb mwVK DËi: C. ‡ebRvjwWnvBW e¨vL¨v: UjyB‡bi RviY wewµqvA. g„`y RviK Øviv UjyBb RvwiZ n‡j †ebRvjwWnvBW Drcbœ nq| g„`y RviK wn‡m‡e CrO2Cl2 A_ev 45°C ZvcgvÎvq DËß 65%H2SO4 I MnO2 Gi wgkªY e¨eüZ nq| B. Zxeª RviK Øviv UjyBb RvwiZ n‡j •Re GwmW Drcbœ nq| Zxeª RviK wn‡m‡e GwmWxq K2Cr2O7 e¨eüZ nq| Ges †ebRwqK GwmW Drcbœ K‡i| we‡kl ¯§iYxq- RvBwjb Zxeª RviK Øviv RvwiZ n‡q †_wjK GwmW [C6H4-(COOH)2 Drcbœ K‡i| 03. V2O5 Gi Dcw¯
wZ‡Z 300°C ZvcgvÎvq UjyBb‡K evqyi mvnv‡h¨ RvwiZ Ki‡j cvIqv hvq- [RU. 2007-08] A. ‡ebRwqK GwmW B. ‡dbj C. A¨vj‡Kvnj D. wg_vbj mwVK DËi: A. ‡ebRwqK GwmW e¨vL¨v: f¨vbvwWqvg †c›Uv·vB‡Wi Dcw¯
wZ‡Z, 300°C ZvcgvÎvq UjyBb‡K evqyi mvnv‡h¨ RvwiZ Ki‡j †eb‡RvwqK GwmW cvIqv hvq| 2C6H5–CH3+3O2 V2O5, 300C 2C6H5– COOH+2H2O V2O5 Gi cwie‡Z© Co–Mn A¨vwm‡UU cÖfveK e¨envi Ki‡j 170°C G RviY wµqv m¤úbœ nq| JU 01. UjyBb‡K jNy KMnO4 I KOH Øviv RvwiZ Ki‡j GKwU †h․M A Drcbœ nq| Drcbœ A †h․M jNy HCl Gi Dcw¯
wZ‡Z B_vBj A¨vj‡Kvn‡ji mv‡_ wewµqv K‡i B †h․M I cvwb Drcbœ K‡i| B †h․MwUi bvg wK? [JU.12-13] A. †eb‡RvwqK GwmW B. B_vBj †eb‡Rv‡qU C. wdbvBj A¨vwgb D. RvBwjb mwVK DËi: B. B_vBj †eb‡Rv‡qU e¨vL¨v: 02. jyBm AbyNU‡Ki (FeCl3) Dcw¯
wZ‡Z UjyB‡bi m‡½ †K¬vwi‡bi wewµqvq wb‡gœi †Kvb †h․MwU Drcbœ nq? [JU. 2009-10] A. B. C. D. mwVK DËi: D STEP 02 ANALYSIS OF SCIENCE & TECHNOLOGY QUESTION SUST 01. UjyBb †_‡K †ebRvjwWnvBW •Zwi‡Z e¨eüZ nq- [SUST.2012-13, BSRMSTU. 2016-17] A. A¤øxq KMnO4 B. A¤øxq K2Cr2O7 C. Mvp H2SO4 D. Mvp HNO3 E. MnO2 mwVK DËi: E. MnO2 JUST 01. jNy bvBwUªK GwmW †hv‡M UjyBb‡K RvwiZ Ki‡j wK Drcbœ nq? [JUST-A,Set-Kha 2018-19; BUTex.2014-15] A. †eÄvwgb GwmW B. †eb‡RvwqK GwmW C. UjyBb GwmW D. †ebRvjwWnvBW mwVK DËi: B. †eb‡RvwqK GwmW e¨vL¨v: C6H5CH3(dzUšÍ) + HNO3 (dzUšÍ) –––––– Zxeª RviK C6H5COOH UjyBb †ebRvwqK GwmW STEP 04 ANALYSIS OF MEDICAL & HSC QUESTION MAT 01. UjyB‡bi †ÿ‡Î †KvbwU cÖ‡hvR¨? [MAT 2001-2002] A. Bnv MÜhy³ Zij c`v_© B. bvB‡Uªkb wewµqvq UjyBb †ebwRb A‡cÿv 25 ¸Y AwaK mwµq C. †ebRvBj A¨vj‡Kvnj ms‡køl‡Y UjyBb e¨eüZ nq D. meKwU| mwVK DËi: A. Bnv MÜhy³ Zij c`v_© Cl H3C Cl C1C C1 CH 3

560 •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 CONCEPT 09 eÜb wefvRb I weKviKmg~n Item- 01: wefvR‡bi cÖKvi‡f`tÑ eÜb wefvRb `yB cÖKvi| h_v: mylg wefvRbt eÜb fv½vi mgq hw` eÜbhy³ Dfq cigvYy GK †Rvov B‡jKUªb n‡Z GKwU GKwU K‡i B‡jKUªb mgvbfv‡e fvM K‡i †bq Zv‡K e܇bi mylg wefvRb e‡j| †hgbt A : B A. + B. mylg wefvR‡bi d‡j wd« i¨vwWK¨vj Drcbœ nq| †cÖv‡cb †_‡K `ywU wd«-i¨vwWK¨vj †hgb- B_vBj (C2H5) I wg_vBj (CH3) wd«-i¨vwWK¨vj Drcbœ nq| wd« i¨vwWK¨vjt we‡Rvo B‡jKUªb m¤^wjZ †h †Kvb cÖRvwZ‡K gy³ cigvYy‡RvU ev wd« i¨vwWK¨vj e‡j| mylg wefvR‡bi d‡j wd«-i¨vwWK¨vj Drcbœ nq| ‣ewkó¨t Giv AZ¨šÍ mwµq I ÿY¯
vqx Giv AvqwbK cÖK…wZi bq (PvR© bv _vKvq B‡jKUªb I †cÖvUb msL¨v mgvb) Giv Ab¨ B‡jKUª‡bi mv‡_ hy³ n‡q myw¯
Z cigvYy ev MÖæc MVb Ki‡Z Pvq| G‡`i ¯
vwq‡Z¡i µgt 3° A¨vjKvBj > 2° A¨vjKvBj > 1° A¨vjKvBj > wg_vBj g~jK G‡`i mwµqZvi µgt 3° A¨vjKvBj < 2° A¨vjKvBj < 1° A¨vjKvBj < wg_vBj g~jK welg wefvRbt eÜb fv½vi mgq hw` †kqviK…Z Dfq B‡jKUªb eÜb hy³ GKwU cigvYyi m‡½ P‡j Av‡m Ges Aci cigvYy †kqviK…Z B‡jKUª‡bi †Kvb Ask bv cvq Z‡e Zv‡K e܇bi welg wefvRb e‡j| welg wefvR‡bi d‡j Kv‡e©vwbqvg Avqb ev Kv‡ev©K¨vUvqb Ges Kve©vbvqb ev Kv‡e©vA¨vbvqb m„wó nq| R : X R ⊝ + X R : X [hvi Zwor FYvZ¥KZv †ewk †m FYvZ¥K] Kve©vbvqb R + X⊝ R : X [hvi Zwor FYvZ¥KZv Kg †m abvZ¥K] Kv‡e©vK¨vUvqb Kv‡e©vK¨vUvqb Ges Kvev©bvq‡bi ‣ewkó¨t AwaK mwµq ¯^ívqy Ges wewµqvq AšÍe©Zx© cÖRvwZ wnmv‡e Ae¯
vb K‡i| Kv‡e©vwbqvg Avqbmg~‡ni ¯
vwqZ¡µgt +CR3> +CHR2> +CH2R> +CH3 Kve©vbvq‡bi ¯
vwqZ¡ µgt - CH3>: –CH2R>: -CHR2>: -CR3 †R‡b ivLv fv‡jv: ¯
vwqZ¡ I mwµqZv ci¯úi wecixZ| Rv÷ GK K_vq g‡b ivL‡e ¯
vqxZ¡ 3 > 2 > 1 wd«-†iwWK¨vj + mwµqZv 1 > 2 > 3 Kv‡e©vK¨vUvqb Item- 02: weKvi‡Ki aiYt B‡jKUªb Av`vb cÖ`v‡bi wfwˇZ weKviK cÖavbZ `yB cÖKvi- h_v- B‡jUªbvKl©x weKviK ev B‡jK‡UªvdvBjt Giv B‡jKUªb wcÖq KviY Giv wb‡Riv abvZ¥K ev G‡`i B‡jKUª‡bi Afve Av‡Q| abvZ¥K B‡jK‡UªvdvBj (mKj abvZ¥K Avqb) cÖkg B‡jK‡UªvdvBj (AóK ms‡KvPb) bvg ms‡KZ bvg ms‡KZ nvB‡Wªv‡Rb Avqb H + mvjdvi UªvBA·vBW SO3 nvB‡Wªvwbqvg Avqb H3O + ‡evib UªvB‡d¬vivBW BF3 bvB‡Uªvwbqvg Avqb NO2 + †ewiwjqvg †K¬vivBW BeCl2 bvB‡Uªv‡mvwbqvg Avqb NO+ A¨vjywgwbqvg UªvB‡K¬vivBW AlCl3 mvj‡dvwbqvg Avqb SO+ 2 ‡dwiK †K¬vivBW FeCl3 ‡eªv‡gvwbqvg Avqb Br+ GwmW †K¬vivBW RCOCl A¨v‡gvwbqvg Avqb NH4 + Kve©wbj g~jK >C = O Kv‡e©vwbqvg Avqb B‡jK‡UªvdvBj co‡j wbDwK¬IdvBj co‡Z n‡e bv Short Ans Question SAQWRITTEN SUGGESTION BAQ Broad Ans Question cÖkœ-01: wb‡Pi †h․M/Avqb¸‡jv †_‡K B‡jKUªdvBj I wbDwK¬IdvBj mbv³ Ki: (a) AlCl3, H2O, CH2 = CH2, NO2 + , HCHO [BUET. 2019-20, 2014-15] (b) CH3CH2 + , NO2 + , AlCl3, CH3CH(CH3) , BF3, H2O, NH3, CH3CH2OH, F , Br+ DËi: weKvi‡Ki bvg ms‡KZ B‡jK‡UªvdvBj ev B‡jK‡UªvbvKl©x AlCl3, NO2 + , HCHO, BF3, Br+ , CH3CH2 + wbDwK¬IdvBj ev †K›`ªvKl©x H2O, H2C = CH2, NH3, F , CH3CH2OH, CH3CH(CH3) cÖkœ-02: wd« †iwW‡Kj ev gy³g~jK Kx? [e.‡ev. 2019] DËi: Concept-09, Item-01 cÖkœ-03: B‡jK‡UªvdvBj Kx? [iv.‡ev. 2019; Xv.‡ev. 2015] DËi: Concept-09, Item-01 cÖkœ-04: Kv‡e©vK¨vUvqb Kx? [Awfbœ cÖkœ 2018; Kz.‡ev. 2017; e.‡ev. 2016] DËi: Concept-09, Item-01

CHEMISTRY PLUS •Re imvqb 561 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. †KvbwU B‡jK‡UªvdvBj? [PSTU.2019-20;DU-Ka.2017-18; Kz.†ev:2016; w`.†ev.2017] A. PH3 B. H2O C. AlCl3 D. NH3 mwVK DËi: C. AlCl3 e¨vL¨v: ‡h mKj weKviK B‡jKUªb MÖn‡Y mÿg Zviv B‡jK‡UªvdvBj wnmv‡e KvR K‡i| jyBm GwmW mg~n B‡jKUªdvBj| †hgb- CH3 + 02. wd« i¨vwW‡K‡ji †ÿ‡Î †KvbwU mZ¨ bq? [DU-Ka.2016-17] A. Produced by the homolytic scission of -bond B. Produced by the heterolytic scission of -bond C. It is very unstable D. Number of protons and electrons are equal in it mwVK DËi: B. Produced by the heterolytic scission of -bond e¨vL¨v: wd« i¨vwWKvjt hLb GKwU cigvYy ev cigvYyi MÖæ‡ci g‡a¨ we‡Rvo/ AhyM¥ B‡jKUªb _v‡K Zv‡K wd« i¨vwWK¨vj e‡j| wdª i¨vwWK¨vj †nv‡gvjvBwUK wdkvb cÖwµqvq msMwVZ nq| ‡hgb- ‡K¬vwib wd« i¨vwWK¨vj Cl2ClCl→2Cl (‡K¬vwib wd« i¨vwWK¨vj) Free Radical strongly reactive because it gains additional electron to complete octate. 03. wb‡¤œi †h․M¸‡jvi †KvbwU wbIwK¬IdvBj? [DU-Ka. 2014-15] A. H2O B. AlCl3 C. NH 4 D. CH 3 mwVK DËi: A. H2O e¨vL¨v: H2O Gi Aw·‡R‡b `yB †Rvov gy³ †Rvo B‡jKUªb we`¨gvb| ZvB GwU wbDwK¬IdvBj wnmv‡e KvR K‡i| H2O GKwU cÖkg wbDwK¬IdvBj| 04. †KvbwU †K›`ªvKl©x weKviK bv? [DU. 2007-2008] A. RNH2 B. BF3 C. ROH D. RMgX mwVK DËi: B. BF3 JnU 01. wb‡Pi †KvbwU B‡jKUªbvKl©x? [JnU-A.2017-18] A. NO2 + B. Cl C. OS D. NH3 mwVK DËi: A. NO2 + JU 01. †KvbwU me©vwaK w¯
wZkxj Kv‡e©vwbqvg Avqb- [JU-A2.2017-18; DU.2015-16] A. +CR3 B. +CHR2 C. +CH2R D. +CH3 mwVK DËi: A. +CR3 e¨vL¨v: Kve©vbvq‡bi ¯
vwq‡Z¡i µg : CH3 <1° < 2° < 3° 02.Kvev©bvq‡bi mwVK mwµqZvi µg †KvbwU? [JU-A3.2017-18] A. -CH3> -CHR2> -CH2R>-CR3 B. -CH3> -CH2R>-CHR2> -CR3 C. -CH3> -CH2R>-CHR2> -CH3 D. -CR3> -CHR2> -CH2R>-CH3 mwVK DËi: D. -CR3> -CHR2> -CH2R>-CH3 e¨vL¨v: Kve©vbvq‡bi ¯
vwq‡Z¡i µg : -CH3>1° > 2° > 3° mwµqZvi µg ¯
vwq‡Z¡i µ‡gi wecixZ| 03. †Kvb Kve©vbvqbwU me©vwaK mwµq? [JU-A4.2017-18] A. CH3 B. CHR2 C. CH2R D. CR3 mwVK DËi: D. CR3 e¨vL¨v: Kve©vbvq‡bi mwµqZv µg : -CH3 < 1° < 2° < 3° 04. †KvbwU B‡jK‡UªvdvBj? [JU-6.2017-18, CU. 2013-14] A. CH3 + B. NH2 C. CN D. H2O mwVK DËi: A. CH3 + e¨vL¨v: hviv B‡jKUªb‡K AvKl©Y K‡i ZvivB B‡jK‡UªvdvBj| mKj K¨vUvqb I jyBm A¤ø B‡jK‡UªvdvBj wn‡m‡e KvR K‡i| 05. †KvbwU B‡jK‡UªvdvBj? [JU-D7.2017-18, RU. 2009-10] A. CN B. H3O + C. NH3 D. H2O mwVK DËi: B. H3O + 06. †KvbwU B‡jKUªb AvKlx© weKviK †`q? [JU-D: 2014-15] A. Cl2 B. HCN C. NaHSO4 D. RMgX mwVK DËi: A. Cl2 e¨vL¨v: X2 (Cl2 , Br2 ), HCl, HBr, H2SO4 cÖf„wZ B‡jKUªb AvKl©x weKviK †`q Ges HCN, NaHSO3 , RMgX cÖf…wZ wbDwK¬qvm AvKl©x weKviK †`q| 07. †KvbwU wbDwK¬IdvBj? [BSMRSTU. 2017-18; JU. 2011-12, 2009-10] A. CH3NH2 B. CH3 + C. BF3 D. SO3 mwVK DËi: A. CH3NH2 08. Kv‡e©vwbqvg Avq‡bi ¯
vwq‡Z¡i µg n‡jv- [JU. 2010-2011; P.†ev: 2017] A. +CR3> +CHR2> +CH2R>+CH3 B. +CHR2> +CR3> +CH3> +CH3R C. CR3< +CHR2< +CH2R<+CH3 D. †KvbwUB bq mwVK DËi- A. +CR3> +CHR2> +CH2R>+CH3 09. wb‡gœi †KvbwU wbDwK¬IdvBj? [JU. 2009-2010] A. BF3 B. SO3 C. NO2 + D. ROH mwVK DËi: D. ROH RU 01. wb‡gœi †KvbwU me‡P‡q w¯
wZkxj Kv‡e©vK¨vUvqb? [RU-G1.2017-18; BSMRSTU.2017-18; DU.2015-16, 2012-13; CU.F1.2016-17; SUST.2008-09] A. CH3 + B. (CH3)2C +H C. H2C + -CH3 D. (CH3)3C + mwVK DËi: D. (CH3)3C + e¨vL¨v: Kv‡e©vK¨vUvq‡bi ¯
vqx‡Z¡i µgt 3>2>1>C+H3 02. mKj wbDwK¬IdvBj n‡”Q– [RU. 2010-2011] A. Avi‡nwbqvm ÿviK B. eªb‡÷W ÿviK C. jyBm A¤ø D. jyBm ÿviK mwVK DËi: D. jyBm ÿviK e¨vL¨v: jyBm ÿvit mKj wbDwK¬IdvBj jyBm ÿvi| KviY- GK †Rvov B‡jKUªb cÖ`v‡b mÿg c`v_© gvÎB jyBm ÿvi| NH3, H2O, CH3 – NH2, Pyridine BZ¨vw`| 03. †Kvb A¨vjKvBj wd«-‡iwWK¨vjwUi ¯
vwqZ¡ mev©waK? [RU. 2009-2010] A. H3C B. RH2C C. R2HC D. R3C mwVK DËi: D. R3C 04. B‡jK‡UªvdvB‡ji D`vniY- [RU. 2008-2009] A. BF3 B. FeCl3 C. NO+ D. me¸‡jv mwVK DËi: D. me¸‡jv CoU 1. wb‡Pi †Kvb †¯úwmmwU AwaKZi w¯
wZkxj? [CoU–A. 2019-20] A. H3C + B. CH3–CH2 + C. Me3C + D. (Ph)3C + mwVK DËi: D. (Ph)3C + e¨vL¨v: Kv‡e©vK¨vUvqbmg~‡ni ¯
vwq‡Z¡i µg : Gfv‡e †jLv hvq- (Ph)3C + > CR3 > +CHR2 > +CH2R > +CH3 STEP 02 ANALYSIS OF SCIENCE & TECHNOLOGY QUESTION SUST 01. †KvbwU me©vwaK w¯
wZkxj Kv‡e©vK¨vUvqb? [SUST-B. 2019-20; JU-D. Set-C. 2018-19] A. +CH3 B. +CHR2 C. +CH2R D. +CR3 E. +CH2RNO2 mwVK DËi: D. +CR3 e¨vL¨v: Kv‡e©vU¨vqvb Gi ¯
vwqZ¡ µg 3 > 2 > 1 Zvn‡j, +CR3 > +CHR2 > +CH2R > +CH3

562 •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 02. CH3CH2OH †h․MwUi g‡a¨ †h eÜbwU‡Z welg wefvRb nq †mwU n‡jv- [SUST. 08-09] A. CC B. CO C. CH D. OH mwVK DËi: B. C-O e¨vL¨v: welg wefvRb me mgq C I O Gi gv‡S nq| KviY Kve©b I Aw·‡R‡bi g‡a¨ Aw·‡R‡bi Zwor FbvZ¥KZv †ekx nIqvq welg fv½‡bi mgq B‡jKUªb †Rvov Aw·‡R‡bi w`‡K AvswkK ¯
vbvšÍi nq| d‡j Kve©b K¨vUvqb I Aw·‡Rb Kvev©bvqb m„wó nq| JUST 01. wb‡Pi †KvbwU Kv‡e©vwbqvg Avq‡bi mwVK wewµqv µg? [JUST-B: 2019-20; P.†ev: 2017] A. +CR3 > +CHR2 > +CH2R > +CH3 B. +CR3 > +CH2R > +CHR2 > +CH3 C. +CR3 < +CHR2 < +CH2R < +CH3 D. +CH2R < +CR3 < +CH2R < +CH3 mwVK DËi: C. +CR3 < +CHR2 < +CH2R < +CH3 MBSTU 01. me©vwaK ¯
vwq‡Z¡i Kve©vbvqb †KvbwU? [MBSTU-C. 2019-20] A. CH3 ⊝ CH2 B. (CH3)2 ⊝ C C. ⊝ CH3 D. (CH3)2 ⊝ CH mwVK DËi: C. ⊝ CH3 02. wb‡Pi †KvbwU me©vwaK myw¯
i? [MBSTU-B. 2019-20] A. CH3C +H2 B. (CH3)2C +H C. CH3CH2C +H2 D. (CH3)3C + mwVK DËi: D. (CH3)3C + 03. Kvev©bvqb n‡”Q- [MBSTU-C,Set-2:2018-19] A. FYvZ¥K B. abvZ¥K C. w؇cvjvi D. cÖkg mwVK DËi: A. FYvZ¥K 04. Kv‡e©vwbqvg Avq‡bi ¯
vwqZ¡ µg n‡jv- [MBSTU-B1.2017-18, HSTU. 13-14] A. 1°>2°>3° B. 2°> 1°> 3° C. 1°> 3°> 2° D. 3°>2°>1° mwVK DËi: D. 3°>2°>1° PSTU 01. wb‡Pi †KvbwU cÖkg wbDwK¬IdvBj? [PUST-B.2017-18; MBSTU.B1.2017-18; RU.2007-08, JUST.B.2016-17] A. CH4 B. BF3 C. Br+ D. NH3 mwVK DËi: D. NH3 e¨vL¨v: NH3, H2O, PH3 BZ¨vw` cÖkg wbDwK¬IdvBj| STEP 03 ANALYSIS OF ENGINEERING & BUTex QUESTION BUTex 01. wb‡Pi †KvbwU B‡jK‡UªvdvBj? [BUTex. 2014-15, P.‡ev. 2015] A. PH3 B. NH3 C. BF3 D. NCl3 mwVK DËi: C. BF3 e¨vL¨v: PH3, NH3, NCl3 cÖ‡Z¨‡Ki gy³ e - Av‡Q, cÿvšÍ‡i BF3 Gi †bB| CONCEPT 10 wewµqvi †K․kj ev †gKvwbRg Item-01: •Re wewµqvi †kªwYweb¨vm (GK bR‡i GKevi eyS‡jB h‡_ó) mvB‡Rd bxwZ A¨v‡gvwbqvg mvqv‡bU †_‡K BDwiqv n-weD‡Ub †_‡K iso-weD‡Ub

CHEMISTRY PLUS •Re imvqb 563 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 + + H H CH3 OC-CH3 + +CH3 /CH3CO + + + H H CH3 OC-CH3 +AlCl 4 - + + + CH3 COCH3 +AlCl 3+HCl `„wó AvKl©Y: hv‡`i gv‡S wØ-eÜb ev wÎ-eÜb Av‡Q Zviv ms‡hvRb ev hyZ wewµqv †`q| (i) B‡jKUªb AvKl©x ev B‡jK‡UªvMÖvnx ev B‡jK‡UªvwdwjK ms‡hvRb: Kve©b-Kve©b wØ-eÜb ev wÎ-eÜb A_©vr A¨vjwKb Avi A¨vjKvBb| (ii) ‡K›`ªvKl©x ev wbDwK¬IwdwjK ms‡hvRb: Kve©b-Kve©b Qvov Ab¨ †h‡Kv‡bv wØ-eÜb ev wÎ-eÜb, †hgb- A¨vjwWnvBW I wK‡Uvb| e¨wZµg: †ebwR‡b wØ-eÜb _vKv m‡Ë¡I †m B‡jK‡UªvwdwjK ms‡hvRb wewµqv †`q bv, B‡j‡UªvwdwjK cÖwZ¯
vcb wewµqv †`q| Model Ex-01: †eªvwg‡bi mv‡_ Bw_‡bi wewµqvwUi †K․kj wK? DËi: Br2 + CH2 = CH2 CH2BrCH2Br GLv‡b, Kve©b-Kve©b wØ-eÜb A_©vr A¨vjwK‡bi mv‡_ wewµqvwU N‡U‡Q ZvB Bnv B‡jK‡UªvwdwjK ms‡hvRb| Item-02: weKvi‡Ki aib Abymv‡i †K․kj: Dchy³ k‡Z© I wewµqv cwi‡e‡k •Re wewµq‡Ki m‡½ weKvi‡Ki msN‡l©i mgq wewµqK AYyi CC eÜb †f‡½ ga¨eZ©x mwµq cÖRvwZ MwVZ nq| G cÖRvwZi m‡½ weKviK hy³ n‡q bZzb †h․M MVb K‡i, A_©vr wewµqvi mgvwß N‡U| XY wewµqK X + Y⊝ Z ⊝ – XZ + Y⊝ Y ⊝ + X E –––– weKviK YE + X Drcv` AvµgYKvix weKviK abvZ¥K A_ev FYvZ¥K n‡Z cv‡i| ZvB cÖK…wZ Abymv‡i A_©vr B‡jKUªb Av`vb-cÖ`vb cÖeYZvi wfwˇZ •Re imvq‡bi weKviKmg~n‡K `yBwU fv‡M fvM Kiv hvq| h_v: (i) B‡jK‡UªvbvKl©x weKviK I (ii) †K›`ªvKl©x weKviK| ‡R‡b ivLv fv‡jv: wd«-‡iwWK¨vj- mvaviYZ cÖwZ¯
vcb wewµqv, hyZ wewµqv I cybwe©b¨vm wewµqv †`q| B‡jK‡UªvdvBj- cÖwZ¯
vcb I hyZ wewµqv †`q| wbDwK¬IdvBj- cÖwZ¯
vcb, hyZ wewµqv I AcmviY wewµqv †`q| Item-03: ‡ebwR‡bi cÖPwjZ wewµqvi aiY ev †gKvwbRg wewµqvi bvg weKviK AvµgbKvix MÖæc Drcv` n¨v‡jvwR‡bkb Fe/AlCl3 + Cl2 m~hv©‡jvK + Cl2 ‡K¬vwib B‡j‡±ªvdvBj (Cl+ ) ‡K¬vwib wd« †iwWK¨vj (Cl) ‡K¬v‡iv †ebwRb M¨vgvw·b bvB‡Uªkb Mvp HNO3 + Mvp H2SO4, 60C bvB‡Uªvwbqvg Avqb (NO2 + ) bvB‡Uªv‡ebwRb mvj‡dv‡bkb H2SO4 + SO3, 100C SO3 B‡jK‡UªvdvBj ‡ebwRb mvj‡dvwbK GwmW wd«‡Wj µvdUm Abv`ª© AlCl3 + CH3Cl (A¨vjKvB‡jkb) Abv`ª© AlCl3+CH3COCl (A¨vmvB‡jkb) + CH3 B‡jK‡UªvdvBj CH3CO+ B‡jKUªdvBj UjyBb A¨vwm‡Uv‡d‡bvb D`vniYt wd«‡Wj-µvdU wewµqvi †K․kj tÑ Step–1: CH3Cl/CH3COCl+AlCl3 ⇌ +CH3/CH3CO+ + AlCl4 – Step–2: Step–3: Item-04: SN1 I SN2 Gi wewµqv cv_©K¨: SN1 SN2 cÖ_g µg AbymiY K‡i| wØZxq µg AbymiY K‡i| wewµqvi mwµqZv µgt 3°RX>2°RX >1° RX> CH3X wewµqvi mwµqZv µgt CH3X>1°RX >2° RX > 3°RX †cvjvi `ªve‡K SN1 †gKvwbRg N‡U| bb-‡cvjvi `ªve‡K SN2 †gKvwbRg N‡U| wbDwK¬IdvB‡ji NbgvÎv Kg n‡j SN1 †gKvwbRg Abym„Z nq| wbDwK¬IdvB‡ji NbgvÎv †ewk n‡j SN2 †gKvwbRg Abym„Z nq| `~e©j wbDwK¬IdvBj SN1 †gKvwbR‡gi MwZ wbqš¿Y K‡i| mej wbDwK¬IdvBj SN2 †gKvwbR‡gi MwZ wbqš¿Y K‡i| SN1 Gi MwZi g~‡j i‡q‡Q B‡jKUªwbK d¨v±i ev AwaK kvLvhy³ Kve©b| SN2 Gi MwZi g~‡j i‡q‡Q †÷wiK d¨v±i ev wÎgvwÎK ¯
vwbK evav| g‡b ivLv fvj SN2 wewµqvi †ÿ‡Î †h cv‡k n¨vjvBW Avqb Av‡Q Zvi wecixZ cvk †_‡K AvµgbKvix weKviK Avµgb K‡i d‡j R¨vwgwZK MVb cwiewZ©Z nq G‡K waldan Inversion e‡j| Kve©b msL¨v e„w×i Dcvq DUR© wewµqvt Kve©b msL¨v wظY nq| A¨vjKvBj n¨vjvBW Kve©b msL¨v n«v‡mi Dcvqt ndg¨vb ¶z`ªvskKiY wewµqv, wW-Kv‡ev©w·‡jkb wewµqv| ‣Re GwmW A¨vgvBW A¨vwgb Kve©b msL¨v GKwU †ekx nq

564 •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 H C H H + Short Ans Question SAQWRITTEN SUGGESTION BAQ Broad Ans Question cÖkœ-01: †ebwR‡bi A¨vjKvBwjKi‡Y e¨eüZ wewµqvwUi bvg wK? wewµqvwUi †jL I wewµqv †K․kj †`LvI| [DU. 2019-20] DËi: (a) †ebwR‡bi A¨vjKvBwjKiY wewµqvwUi bvg- wd«‡Wj-µvdU A¨vjKvB‡jkb: wewµqv †K․kj- Item-03 cÖkœ-02: wd«‡Wj-µvdU wewµqvq Abv`ª© AlCl3 e¨eüZ nq †Kb? [Xv.‡ev. 2019] DËi: Abv`ª© AlCl3 GKwU jyBm GwmW| Avgiv Rvwb, jyBm GwmW GK‡Rvov B‡jKUªb MÖnY Ki‡Z cv‡i| A¨vjKvB‡jkb wewµqvq Bnv wg_vBj †K¬vivBW †_‡K GK‡Rvov B‡jKUªb MÖnY K‡i wg_vBj Kv‡e©vwbqvg (CH3) Avqb Drcbœ nq, Zv †ebwRb ejq -eÜb‡K AvµgY K‡i| CH3Cl: + AlCl3 [H3CCl+ AlCl3 ] .. .. .. ..⇌ CH3 + AlCl4 + cÖkœ-03: wb‡¤œi wewµqv `ywU m¤ú~Y© Ki: [RU. 2019-20] KOH (alc) CH3 – CH2 – CH2Cl KOH(aq) ? ? DËi : KOH (alc) CH3 – CH2 – CH2Cl KOH(aq) CH3–CH = CH2+KCl+H2O mvq‡Rd Product CH3–CH2–OH + KCl †cÖvcvbj g‡b ivLv fvj: KOH (alc) †kvlY K‡i HX †h Kve©b †_‡K X †K wb‡e Zvi cv‡ki Kve©b †_‡K H †K wb‡e| cÖkœ-04: wb‡¤œ wKQz ivmvqwbK †h․M †`qv nj| †Kvb †h․MwU wb¤œwjwLZ wewµqvi R‡b¨ AwaKZi ms‡e`bkxj evQvB Ki| [BUET: 2018-19] CH3 CHO COCl CH=Cl2 (i) wbDwK¬IwdwjK cÖwZ¯
vcb (ii) B‡jKUªwdwjK cÖwZ¯
vcb (iii) wbDwK¬IwdwjK ms‡hvRb (iv) B‡jKUªwdwjK ms‡hvRb (v) d‡Uv‡KwgK¨vj cÖwZ¯
vcb DËi: CH3 (i) COCl (ii) CH3 (iii) CHO (iv) CH=CH2 (v) REAL TEST ANALYSIS OF PREVIOUS YEAR QUESTIONS STEP 01 ANALYSIS OF GENERAL UNIVERSITY QUESTION DU 01. †Kvb †h․MwU †K›`ªvKlx© ms‡hvRb wewµqv w`‡e? [DU,Unit-A:2018-19; PSTU.2019-20] A. C2H4 B. C2H5Br C. CH3CHO D. C2H6 mwVK DËi: C. CH3CHO e¨vL¨v: ms‡hvRb B‡jK‡UªvwdwjK A¨vjwKb Ges A¨vjKvBb wbDwK¬IwdwjK A¨vjwWnvBW I wK‡Uvb 02. SN2 wewµqvq A¨vjKvBj n¨vjvBW mg~‡ni mwµqZvi µg n‡jv- [DU-Ka. 2015-16; JU. 2011-2012; DU.7Clg. 19-20] A. CH3X > RCH2X > R2CHX > R3CX B. RCH2X > CH3X > R2CHX > R3CX C. CH3X > RCH2X > R2CX > R2CHX D. R3CX > R2CHX > RCH2X > CH3X mwVK DËi: A. CH3X > RCH2X > R2CHX > R3CX e¨vL¨v: wewµqv mwµqZv µg SN 1 3 > 2 > 1 > CH– 3X SN 2 CH3–X > 1 > 2 > 3 03. †eªvwgb Bw_‡bi mv‡_ wewµqv K‡i| wewµqvwUi †K․kj wK? [DU.2013-14] A. †K›`ªvKlx© hyZ B. †K›`ªvKlx© cÖwZ¯
vcb C. B‡jKUªMÖvnx hyZ D. B‡jKUªMÖvnx cÖwZ¯
vcb mwVK DËi: C. B‡jKUªMÖvnx hyZ 04. †ebwR‡bi mwnZ CH3Cl Ges AlCl3 Gi wewµqvq wb‡gœi †KvbwU GKwU AšÍe©Zx©? [DU.2011-2012,B.U.2012-2013] A. H H | H | C B. H : H | H | C Θ C. H H | H | C D. mwVK DËi: C. e¨vL¨v: †ebwR‡bi mwnZ CH3Cl Ges AlCl3 Gi wewµqvq AšÍieZx© †h․M wg_vBj Kv‡e©vwbqvg Avqb ev CH3 + m„wó nq| CH3Cl + AlCl3 AlCl4 – + CH3 + CH3 + ‡K wjLv nq- AšÍe©Zx †h․M| 05. cUvwmqvg mvqvbvB‡Wi Dcw¯
wZ‡Z nvB‡Wªv‡Rb mvqvbvBW †cÖvcvb‡ji mv‡_ wewµqv K‡i| wewµqvi †K․kjwU n‡jv- [DU. 2012-2013; BSMRSTU.17-18] A. nucleophilic addition B. electrophilic substitution C. nucleophilic substitution D. electrophilic addition H H H H H

CHEMISTRY PLUS •Re imvqb 565 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 CH3 H OH C CH3 CH3 H CN +CN C cÖwZ¯
vcb wewµqv Z+ C X Z C + X - + - ‡K›`ªvKl©x weKviK (AvµgYKvix MÖyc) A¨vjKvBj n¨vjvBW Drcv` n¨vjvBW Avqb (cwiZ¨v³ MÖyc) mwVK DËi: C. nucleophilic substitution e¨vL¨v: †cvjvwiZ A¨vjKvBj n¨vjvB‡Wi n¨vjvBW Avqb (X - )†K›`ªvKl©x weKviK Øviv cÖwZ¯
vwcZ nq e‡j G wewµqv‡K †K›`ªvKl©x cÖwZ¯
vcb wewµqv (nucleophilic substitution reaction ) ev ms‡ÿ‡c SN wewµqv e‡j| †K›`ªvKl©x cÖwZ¯
vcb wewµqv n‡”Q A¨vjKvBj n¨vjvB‡Wi •ewkó¨c~Y© wewµqvt GLv‡b, †K›`ªvKl©x weKviK – Z = OH– , OR– , CN– , RCOO– , R– , .. NH3 , R– .. NH2 Nucleophilic substitution 06. wb‡gœi †Kvb †h․MwU †K›`ªvKwl©K cÖwZ¯
vcb wewµqv †`q? [DU. 2011-2012] A. chlorobenzene B. ethylene C. dimethylether D. 2-chloro-2-methylpropane mwVK DËi: D. 2-chloro-2-methylpropane e¨vL¨v: n¨v‡jv‡R‡bv A¨vj‡Kb mg~n †K›`ªvKl©x cÖwZ¯
vcb wewµqv †`q| G Kvi‡Y mwVK DËi chlorobenzene bv n‡q 2-chloro-2-methylpropane n‡e| 07. †ebwR‡bi bvB‡Uªkb wb‡Pi †Kvb wewµqK †mwU e¨eüZ nq? [DU.2007-2008] A. NaNO3 and dil H2SO4 B. Dil HNO3 C. NaNO3 and HCl D. Conc. HNO3 and H2SO4 mwVK DËi: D. Conc. HNO3 and H2SO4 e¨vL¨v: + H2O g‡b ivL‡e, †h †Kvb bvB‡Uªk‡b Conc. HNO3 and Conc H2SO4e¨eüZ nq| 08. R–CH2X NaOH(aq) –––––––– RCH2OH+NaX wewµqvwU GKwU – [DU.2004 - 05, iv.‡ev. 2015] A. hyZ wewµqv B. wbDwK¬IMÖvnx cÖwZ¯
vcb wewµqv C. B‡j±ªbvKl©x cÖwZ¯
vcb wewµqv D. AcmviY wewµqv mwVK DËi: B. wbDwK¬IMÖvnx cÖwZ¯
vcb wewµqv e¨vL¨v: n¨v‡jv‡R‡bv A¨vj‡K‡bi (R-CH2-X) AvswkK abvZ¥K PvR©hy³ Kve©b‡K †K›`ªvKl©x weKviK ev wbDwK¬IdvBj (‡hgb B‡jKUªb mg„× Avqb I cÖkg AYy) AvµgY K‡i; d‡j n¨vjvBW Avqb (X– ) †K›`ªvKl©x weKviK Øviv cÖwZ¯
vwcZ nq| Giƒ‡c †K›`ªvKl©x weKviK ev wbDwK¬IdvBj Øviv R – X Gi n¨v‡jv‡Rb cigvYyi n¨vjvBW Avqbiƒ‡c cwiZ¨³ nIqvi wewµqv‡K †K›`ªvKl©x ev wbDwK¬IwdwjK cÖwZ¯
vcb (SN) ejv nq| 09. A¨v‡gvwbqvg mvqvbvBU‡K DËßK‡i BDwiqv cÖ¯‧‡Zi wewµqvi bvg- [DU. 1996-97, RU. 2008-09, JnU. 2013-14] A. mgvYyKiY B. eû‡hvRb C. cÖwZ¯
vcb D. wØ-we‡qvRb mwVK DËi: A. mgvYyKiY JnU 01. CH4-Gi mwnZ Cl2-Gi wewµqv GKwU- [JnU 2012-2013] A. i¨vwWK¨vj wewµqv B. AvqwbK wewµqv C. hyZ wewµqv D. †KvbwUB bq mwVK DËi: A. i¨vwWK¨vj wewµqv 02. (CH3)3-CBr I Rjxq NaOH Gi wewµqv †Kvb †kªYxi? [JnU 2006-2007] A. SN 1 B. SN 2 C. E2 D. †KvbwUB bq mwVK DËi: A. SN 1 e¨vL¨v: GKwU gvÎ wewµq‡Ki NbgvÎvi Dci †Kvb wbDwK¬IwdwjK cÖwZ¯
vcb wewµqvi MwZ wbf©ikxj n‡j Giƒc wewµqv‡K GK AvYweK wbDwK¬IwdwjK cÖwZ¯
vcb wewµqv (SN 1 ) e‡j| JU 01. wØeÜb I wÎeÜbhy³ Kvh©Kix g~j‡K msNwUZ wewµqv †KvbwU? [JU-D: 2019-20; RU. 2018-19] A. cÖwZ¯
vcb B. ms‡hvRb C. AcmviY D. †KvbwUB bq mwVK DËi: B. ms‡hvRb e¨vL¨v: †hLv‡bB †`wL‡e eÜb cvB, †mLv‡bB †h․‡Mi ms‡hvRb PvB| 02. SN1 wewµqv †Kvb ai‡Yi n¨vjvB‡W †ewk N‡U? [JU-D, Set-Q. 2019-20] A. 3 B. 2 C. 1 D. meKwU mwVK DËi: A. 3 e¨vL¨v: SN1 wewµqvi µg 3 > 2 > 1 03. GKK eÜbhy³ Kvh©Kix g~j‡K †Kvb ai‡Yi wewµqv N‡U? [JU-D, Set-A. 2019-20] A. cÖwZ¯
vcb B. ms‡hvRb C. we‡qvRb D. †KvbwUB bq mwVK DËi: A. cÖwZ¯
vcb 04. RX+KOH(aq) ROH+KCl; SN 2 ‡K․k‡ji †ÿ‡Î cÖ‡hvR¨- [IU-D. 2016-17] A. –dc/dt [RX] B. –dc/dt [KOH] C. –dc/dt [RX] [KOH] D. –dc/dt `ªve‡Ki †cvjvwiwU mwVK DËi: C. dt dc [RX] [KOH] e¨vL¨v: hw` wewµqvi nvi KOH Ges RX Df‡qi NbgvÎvi Dci wbf©i K‡i Zvn‡j SN2 Ges hw` wewµqvi nvi ïaygvÎ RX Gi Dci K‡i Zvn‡j SN1। SN1 I SN2 wewµqvi †K․kjB R-Gi wewµqvi †K․kj| RU 01. mvB‡K¬vweDUvWvBBb- [RU. 2011-2012] A. mylg †Kw›`ªK †hŠM B. ms‡hvRb wewµqv †`q bv C. ms‡hvRb wewµqv †`q D. me¸‡jv mwVK DËi: D. me¸‡jv e¨vL¨v: Am¤ú„³ †h․‡Mi •ewkó¨g~jK wewµqv n‡”Q ms‡hvRb wewµqv| 02. wK‡mi Dcw¯
wZ‡Z A¨vj‡K‡bi mgvYyKiY nq? [RU.2007-08] A. Av‡jv B. AlCl3/HCl Zvc C. Al2O3 I Zvc D. Cr2O3 mwVK DËi: B. AlCl3/HCl Zvc e¨vL¨v: CH3–CH2–CH2–CH3 AlCl3H + 300C ––––––––––– CH3–CH(CH3)–CH3 CU 01. †Kvb wewµqvq GKwU bZzb Kve©b-Kve©b eÜb •Zwi nq? [CU. 2019-20] A. K¨vwbRv‡iv wewµqv B. wK¬‡gb‡mb wewµqv C. wd«‡Wj-µvd&Um wewµqv D. m¨vÛ‡gqvi wewµqv mwVK DËi: C. wd«‡Wj-µvd&Um wewµqv e¨vL¨v: CH3 + CH3Cl AlCl3 –––– + AlCl3 + HCl GLv‡b C6H5– Gi mv‡_ CH3– g~j‡Ki C – C ej‡q N‡U| 02. wb‡Pi †KvbwU Abv`ª© AlCl3-Gi Dcw¯
wZ‡Z †ebwR‡bi mv‡_ wewµqv K‡i UjyBb Drcbœ K‡i? [CU-F1.2016-17] A. CH3CN B. CH3COCl C. CH3CH2Cl D. CH3Cl E. CH3OH mwVK DËi: D. CH3Cl e¨vL¨v: wewµqvwU wb¤œiƒc: +CH3Cl +HCl [wd«‡Wj µvdU A¨vjKvB‡jkb] H +HO – NO2 NO2 HNO C H SO .60 3 2 4 Mvp Mvp O H O CH3 UjyBb

566 •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 CoU 01. wb‡Pi †Kvb †ÿ‡Î wØ-AvYweK wbDwK¬IwdwjK cÖwZ¯
vcb wewµqvi nvi †ewk nq? [CoU–A. 2019-20] A. wbDwK¬IdvB‡ji NbgvÎv Kg n‡j B. †÷wiK d¨v±i Kg n‡j C. †cvjvi `ªve‡K D. `ye©j wbDwK¬DIdvBj n‡j mwVK DËi: B. †÷wiK d¨v±i Kg n‡j e¨vL¨v: SN 1 Gi MwZi g~‡j i‡q‡Q B‡jKUªwbK d¨v±i ev AwaK kvLvhy³ Kve©b wkKj| wKš‧ SN 2 Gi MwZi g~‡j i‡q‡Q steric factor ev wÎgvwÎK ¯
vwbK evav| 1 n¨vjvB‡Wi †ejvq wÎgvwÎK ¯
vwbK evav Kg, ZvB SN 2 wewµqv AwaK N‡U| 02. R–CH2Br + NaOH(aq) Drcv`; wewµqvwUi †K․kj Kx? [CoU–B. 2019-20] A. B‡j±ªwdwjK cÖwZ¯
vcb B. †K›`ªvKl©x cÖwZ¯
vcb C. AcmviY wewµqv D. ms‡hvRb wewµqv mwVK DËi: B. †K›`ªvKl©x cÖwZ¯
vcb 03. A¨vjKvBj n¨vjvBW (RX) G cÖwZ¯
vcb wewµqvi †K․kj n‡jv- [CoU-A. 2016-17] A. wd«-‡iwWK¨vj B. RviY-weRviY C. B‡jK‡UªvwdwjK D. wbDwK¬IwdwjK mwVK DËi: D. wbDwK¬IwdwjK STEP 02 ANALYSIS OF SCIENCE & TECHNOLOGY QUESTION JUST 01. wb‡Pi †Kvb weKviKwU Kv‡e©vbvBj MÖæc‡K wg_vBwjb MÖæ‡c iƒcvšÍi Ki‡Z mÿg? [JUST-B:2019-20] A. Zn-Hg + HCl (conc.) B. Na–Hg + HF (conc.) C. Zn–Hg + HCl (conc.) D. Mn–Hg + HCl (conc.) mwVK DËi: C. Zn–Hg + HCl (conc.) SUST 01. R-CH2-CH=CH2 g~jZ †Kvb ai‡bi wewµqv †`q? [SUST-B,2018-19] A. B‡j±ªbvKlx© hyZ B. B‡j±ªbvKlx cÖwZ¯
vcb C. wbDwK¬IwdwjK we‡qvRb D. wbDwK¬IwdwjK ms†hvRb E. wbDwK¬IwdwjK cÖwZ¯
vcb mwVK DËi: A. B‡j±ªbvKlx© hyZ e¨vL¨v: A¨vjwKbmg~n B‡j±ªbvKl©x hyZ ev ms‡hvRb wewµqv †`q| 02. Abv`ª© ZnCl2 Gi Dcw¯
wZ‡Z A¨vj‡Kvnj I Mvp HCl Gi wewµqvwU †Kvb †K․kj AbymiY K‡i? [SUST. 2014-15] A. wbDwK¬IwdwjK cÖwZ¯
vcb B. wbDwK¬IwdwjK hyZ C. AcmviY D. B‡j‡UªvwdwjK cÖwZ¯
vcb E. B‡jK‡UªvwdwjK hyZ mwVK DËi: A. wbDwK¬IwdwjK cÖwZ¯
vcb e¨vL¨v: Abv`ª© ZnCl2 Gi Dcw¯
wZ‡Z A¨vj‡Kvnj I Mvp HCl Gi wewµqvq Cl– Avqb Øviv OH– Avqb cÖwZ¯
vwcZ nq| Cl– †h‡nZz wbDwK¬IdvBj, myZivs wewµqvwUi †K․kj nj wbDwK¬IwdwjK cÖwZ¯
vcb| MBSTU 01. wbDwK¬IwdwjK ms‡hvRb wewµqvq †KvbwU me©vwaK mwµq? [MBSTU-C. 2019-20] A. HCHO B. CH3CHO C. CH3COCH3 D. CH2CH2CHO mwVK DËi: A. HCHO e¨vL¨v: wbDwK¬IwdwjK ms‡hvRb wewµqvq wK‡Uvb A‡cÿvq A¨vjwWnvBW AwaK mwµq, Z‡e A¨vjwWnvB‡W wg_vBj g~j‡Ki msL¨v evovi mv‡_ mv‡_ mwµqZv n«vm cvq| 02. †KvbwU CH3CHO Gi ‣ewkó¨ c~Y© wewµqv? [MBSTU-A.2016-17] A. wbDwK¬IwdwjK cÖwZ¯
vcb B. B‡jKUªwdwjK cÖwZ¯
vcb C. B‡jKUªwdwjK hyZ wewµqv D. wbDwK¬IwdwjK h~Z wewµqv mwVK DËi: D. wbDwK¬IwdwjK hyZ wewµqv e¨vL¨v: ‡K›`ªvKl©x/wbDwK¬IwdwjK hyZ wewµqv – CH3HC=O 03. SN1 wewµqv Kq av‡c msMwVZ nq? [MBSTU-C.2016-17, 17-18,B. 2019-20; P.†ev: 2015] A. 0 av‡c B. 1 av‡c C. 2 av‡c D. 3 av‡c mwVK DËi: C. 2 av‡c HSTU 01. GKB AYy‡Z we`¨gvb †Kvb cigvYy ev g~jK cyYwe©b¨¯Í n‡q bZzb GK AYy‡Z cwiYZ nIqv‡K wK e‡j? [HSTU-B.2017-18] A. ‡i‡Rvb¨vÝ wewµqv B. AcmviY wewµqv C. cybwe©b¨vm wewµqv D. cÖwZ¯
vcb wewµqv mwVK DËi: C. cybwe©b¨vm wewµqv 02. SN2 wewµqv KZ av‡c m¤úbœ nq? [HSTU-H.2017-18] A. 2 B. 1 C. 3 D. 4 mwVK DËi: A. 1 e¨vL¨v: SN1wewµqv `yB av‡c Ges SN2 wewµqv GK av‡c m¤úbœ nq| PUST 01. SN1 wewµqvi †ÿ‡Î wb‡¤œi †KvbwU mwVK bq? [PUST. 2019-20] A. Kv‡e©vK¨vUvq‡bi m„wó nq B. R¨vwgwZK MVb cwiewZ©Z nq C. †cvjvi `ªve‡K mn‡R N‡U D. `yB av‡c N‡U mwVK DËi: B. R¨vwgwZK MVb cwiewZ©Z nq e¨vL¨v: SN1 wewµqvi †ÿ‡Î Kve©‡bi †h cvk¦© n‡Z n¨vjvBW Avqb wew”Qbœ nq, †mB cv‡k¦B wbDwK¬IdvBj hy³ nq| wKš‧ SN2 Gi †ÿ‡Î wecixZ cvk¦© n‡Z wbDwK¬IdvBj AvµgY Kivq Kivq AYyi R¨vwgwZK MVb D‡ë hvq, _v‡K Walden inversion e‡j| 02. SN2 wewµqvi Rb¨ †Kvb †h․MwU AwaK Dchy³? [PUST-B.2017-18] A. CH3Cl B. (CH3)2CHCl C. (CH3)3CCl D. CH3CH3 mwVK DËi: A. CH3Cl e¨vL¨v: SN2 wewµqvq µg : CH3Cl>1°>2°>3° STEP 03 ANALYSIS OF ENGINEERING & BUTex QUESTION KUET 01. 1 0 , 20 Ges 3 0 A¨vjKvBj n¨vjvB‡Wi SN1 wewµqvi µg †KvbwU n‡e? [KUET. 2015-16] A. 30 > 20 >10 B. 10 > 20 > 30 C. 20 > 10 > 30 D. 20 > 30 > 10 E. 10 > 30 > 20 mwVK DËi: A. 30 > 20 >10 e¨vL¨v: kvLvhy³ A¨vjKvBj n¨vjvBW SN1 wewµqv mn‡R w`‡q _v‡K R3CX > R2CHX > RCH2X > CH3X 3 2 1 0 02. Kve©nvB‡Wª‡Ui wkK‡ji •`N¨© e„w× Ki‡Z cÖ_‡gB hvi mv‡_ wewµqv Ki‡Z nq Zv nj- [RUET: 2012-2013] A. HCHO B. HCHO+RMgX C. NaNO2+HX D. HCN mwVK DËi: D. HCN 03. Zn H O D O C C H SO B LiAlH H A 3 2 0 2 4 4 / 165 [ ] 2HCHO+ZnO+H2O Dc‡ii wewµqvq †Kvb †h․MwU B‡jKUªb AvKl©x ms‡hvRb wewµqv cÖ`k©b Ki‡e? [BUTex-2016-17] A. A B. B C. C D. D mwVK DËi: C. C e¨vL¨v: HCHO ZnO H O Zn H O CH CO O CH CH C H SO CH CH OH LiAlH H CH CHO 2 2 2 2 3 2 2 0 2 4 3 2 4 3 2 / 165 [ ] 04. †Kvb †h․M SN1 †K․kj AbymiY K‡i? [BUTex-2016-17, RU. 2016-17] A. CH3 -CH2-Br B. CH3-Br C. CH3-NH2 D.(CH3)3-CCl mwVK DËi: D.(CH3)3-CCl e¨vL¨v: 3° Alkyl Halide SN1 AbymiY K‡i|

CHEMISTRY PLUS •Re imvqb 567 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 04 ANALYSIS OF MEDICAL & HSC QUESTION MAT 01. †h wewµqvq Mvp H2SO4 (wbiæ`K) Gi cÖfv‡e 160C ZvcgvÎvq B_vbj †_‡K Am¤ú„³ †h․M Bw_b Drcbœ nq? [MAT. 2006-07] A. cÖwZ¯
vcb wewµqv B. AcmviY wewµqv C. hyZ wewµqv D. cvigvYweK cybwe©b¨vm mwVK DËi: B. AcmviY wewµqv 02. †KvbwU •Re wewµqvi †kªYx wefvM bq? [MAT. 2002-03] A. ms‡hvRb B. cÖwZ¯
vcb C. cybwe©b¨vm D. mne¯
vb mwVK DËi: D. mne¯
vb e¨vL¨v: •Re wewµqv cÖavbZ Pvi cÖKvi- (i) ms‡hvRb (ii) cÖwZ¯
vcb (iii) cybwe©b¨vm (iv) AcmviY 03. A¨vjKvBj n¨vjvB‡Wi mv‡_ Rjxq ÿvi‡Ki wewµqvq A¨vj‡Kvnj cvIqv hvq| Bnv GKwU- [MAT. 2001-02] A. AcmviY wewµqv B. cÖwZ¯
vcb wewµqv C. ms‡hvRb wewµqv D. hyZ wewµqv mwVK DËi: B. cÖwZ¯
vcb wewµqv 04. SN1 cÖwZ¯
vcb wewµqvq mwµqZvi mwVK µg nj- [MAT. 2000-01, JU. 2011-12] A. 3 RX > 2 RX >1RX B. CH3X>1RX>2RX C. 2RX>3RX>CH3X D. CH3X>1RX>3RX mwVK DËi: A. 3 RX > 2 RX >1RX PART 01 A¨vj‡Kb m¤úwK©Z Z_¨vewj A¨vwj‡dwUK nvB‡WªvKve©‡bi Drm: Item- 01: A¨vj‡K‡bi ‡f․Zag©t mvaviY ZvcgvÎvq C1–C4 nj M¨vmxq Ges eY©nxb, C5–C17 nj eY©nxb, DØvqx I †c‡Uªv‡ji b¨vq MÜhy³ Zij Ges C18 †_‡K c‡ii¸‡jv KwVb c`v_©| A¨vj‡Kbmg~n cvwb †_‡K nvjKv| A¨vj‡K‡bi ivmvqwbK wewµqv g‡b ivLvi wUªKm: Zvcm Av‡m cÖwZ †mvgeviZvcm Zvcxq wewµqv Av‡m A¨v‡iv‡gwUKiY cÖwZ cÖwZ¯
vcb †mvgevi mgvYyKiY Item-02: A¨vj‡K‡bi cÖ¯‧wZ I ivmvqwbK wewµqvtÑ ** wPý¸‡jv fvwm©wU fwZ© cixÿvi Rb¨ ¸iæZ¡c~Y© PART BY PART ORGANIC CHEMISTRY H2O/ROH R–X 500°C, 40atm, Al2O3/10atm, Pt (A¨vjwKb)

568 •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-02: A¨vj‡K‡bi kbv³Kvix wewµqv: A¨vj‡Kb M¨vmxq, Zij ev KwVb †h Ae¯
vqB _vKzK bv †Kb, Zv KL‡bvB Mvp H2SO4 Gi mv‡_ wewµqv Ki‡e bv| A¨vj‡Kb M¨vmxq n‡j Zv ey`ey` AvKv‡i †Kvbiƒc wewµqv bv K‡i †ewi‡q Avm‡e| Zij n‡j Zv m¤ú~Y© wfbœ ¯Íi MVb K‡i Ae¯
vb Ki‡e Ges KwVb n‡jI Zv m¤ú~Y©fv‡e AcwiewZ©Z _vK‡e| A_©vr, RH + H2SO4 (Mvp) no reaction AK‡Ub bv¤^vi: †Kv‡bv R¡vjvwbi iso-AK‡Ub I n-‡nc‡Ub Gi wgkÖ‡Y iso-AK‡U‡bi kZKiv cwigvY‡K AK‡Ub bv¤^vi e‡j| D`vniY: †Kv‡bv R¡vjvwbi AK‡Ub bv¤^vi 80 ej‡Z †evSv‡bv nq †h, H R¡vjvwbwU 20% n-‡n‡Þb I 80% iso-AK‡Ub wgkÖ‡Yi mgvb R¡vjvwb `ÿZv m¤úbœ •Zj| †h R¡vjvwbi AK‡Ub bv¤^vi hZ †ewk †m R¡vjvwb ZZ †ewk DrK…ó| AK‡Ub bv¤^vi e„w× ev bwKs n«v‡mi Dcvq: R¡vjvwbi mv‡_ Anti-knocking c`v_© †hgb- TEL [Pb(C2H5)4], TML [Pb(CH3)4], Avqib †c›UvKve©wbj [Fe(CO)5] Ges UjyBb ‡hvM Kiv| Zvcxq we‡qvRb ev cvB‡ivjvBwmm ev _vg©vj Cracking| mij A¨vj‡Kb‡K kvLvwqZ A¨vj‡K‡b iƒcvšÍi ev A¨vjKvB‡jkb Kiv| A¨vj‡K‡bi e¨envi: R¡vjvwb wn‡m‡e, cÖvK…wZK M¨vm, †c‡Uªvj, M¨v‡mvwjb, †K‡ivwmb †Zj e¨eüZ n‡”Q nvB‡Wªv‡Rb Drcv`‡b BDwiqv Drcv`‡b Qvcvi Kvwj, eyU cwjk •Zix‡Z| -t Z_¨ KwYKv: (HOT NEWS GALLERY) t- DU©R wewµqvq me©`v †Rvo msL¨K Kve©b wewkó †h․M •Zwi nq| A¨vw›U bwKs c`v_© wn‡m‡e TML I TEL Gi e¨envi wbwl× KviY Bnv welv³ †jW (Pb) wbM©Z K‡i| M¨v‡mvwj‡bi d¬vk c‡q›U 45C Ges jyweª‡KwUs †Z‡ji d¬vk c‡q›U 232C| DU©R wewµqvi gZ Djd wKmbvi weRviY wewµqvqI A¨vj‡Kb •Zwi nq| A¨vj‡Kb A¨v‡iv‡gwUKiY ev widiwgs wewµqv †`q| Short Ans Question SAQWRITTEN SUGGESTION BAQ Broad Ans Question cÖkœ-01: wKfv‡e cvIqv hvq, mgxKiYmn wjL? (ii) wg‡_b †_‡K †K¬v‡ivdg© [RUET. 2019-20] DËi: CH4 + Cl2 h – CH3Cl + HCl; CH3Cl + Cl2 h – CH2Cl2 + HCl; CH2Cl2 + Cl2 h – CHCl3 + HCl cÖkœ-02: AK‡Ub bv¤^v‡ii msÁv `vI| GKwU †gvUi R¡vjvbxi AK‡Ub b¤^i 80 ej‡Z Kx eySvq? [RUET. 2004-05; CUET. 2003-04] DËi: Part-01, Item-02 cÖkœ-03: DU©R wewµqvq ï®‥ B_vi e¨eüZ nq †Kb? [iv.‡ev. 2019] DËi: wbw¯…q cwi‡ek m„wó Kivi Rb¨ e¨eüZ nq| cÖkœ-04: bx‡Pi A¨vj‡Kbmg~‡ni AvYweK fi, MjbvsK I ùzUbvs‡Ki gvb wjL| [RUET. 2008-09] C3H8, C5H12, C7H16, C2H6 DËi: AvYweK fi Mjbv¼ ùzUbv¼ C3H8 44 188C 42C C5H12 72 129.8C 36.1C C7H16 100 96C 68.5C C2H6 30 182.8C 89C REAL TEST ANALYSIS OF PREVIOUS YEAR QUESTIONS STEP 01 ANALYSIS OF GENERAL UNIVERSITY QUESTION DU 01. CH3CH2I Gi mv‡_ †mvwWqv‡gi wewµqvq wK Drcbœ nq? [DU.2000-01] A. C2H6 B. C4H10 C. CH3CH2OH D. CH4 mwVK DËi: B. C4H10 e¨vL¨v: 2CH3CH2I + 2Na ï®‥ B_vi ––––– C4H10 + 2NaI 02. wb‡¤œi †h․M¸‡jvi g‡a¨ me‡P‡q Kg ùzUbvsK †KvbwUi? [DU-Ka. 2015-16; RU.G2.2017-18] A. Methane B. Ethane C. Butane D. Pentane mwVK DËi: A. Methane e¨vL¨v: mij wkKj hy³ A¨vj‡K‡bi †ÿ‡Î hvi AvYweK fi Kg Zvi ùzUbv¼ Kg nq| ¸iæZ¡c~Y© KwZcq ‣Re †h․‡Mi ùzUbvsK (C): ‣Re †h․M ùzUbvsK (C) ‣Re †h․M ùzUbvsK (C) Methane -164 Propane -42 Ethane -89 Pentane 36.1 JU 01. wg‡_‡bi ùzUbvsK KZ? [JU-D, Set-A. 2019-20; KU. 2011-2012] A. 112 K B. 185 K C.231 K D. 273 K mwVK DËi: A. 112 K e¨vL¨v: wg‡_‡bi ùzUbvsK –164 †m. ev 112 K 02. A¨vj‡Kb mg‡MvÎxq †kÖYxi †h․Mmg~‡ni †ejvq †KvbwU mwVK? [JU-D5. 17-18] A. mKj m`m¨ M¨vm B. Giv cvwb‡Z `ªeYxq C. A¨vjwKb A‡cÿv AwaK mwµq D. Kve©b wkK‡j †Kej wmMgv eÜb _v‡K mwVK DËi: D. Kve©b wkK‡j †Kej wmMgv eÜb _v‡K e¨vL¨v: A¨vj‡Kb mg‡MvÎxq †kªYx ev m¤ú„³ †h․Mmg~‡ni †ejvq Kve©b wkK‡j †Kej wmMgv eÜb _v‡K| Aciw`‡K A¨vjwKb I A¨vjKvB‡b wmMgv e܇bi cvkvcvwk cvB eÜb _v‡K| RU 01. DU©R wewµqvi gva¨‡g †Kvb ai‡bi A¨vj‡Kb Drcbœ nq? [RU. 2011-12] A. wb¤œZi B. D”PZi C. mggv‡bi D. †KvbwUB bq mwVK DËi: B. D”PZi e¨vL¨v: 2RX + Na ï®‥ B_vi ––––– RR + 2NaX [DU©R wewµqv]

CHEMISTRY PLUS •Re imvqb 569 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 02. †KvbwU A‡kvwaZ †c‡Uªvwjqv‡gi AvswkK cvZ‡b cvIqv hvq? [RU. 09-10] A. CH≡CH, CH2=CH2 B. CH3-CH2, CH4 C. †K‡ivwmb D. Dc‡ii meKwU mwVK DËi: C. †K‡ivwmb e¨vL¨v: A‡kvwaZ †Z‡ji AvswkK cvZ‡b cÖvß Dcv`vbmg~n- i) M¨vm (Gj-wc ev widvBbvwi M¨vm), ii) †c‡Uªvj ev M¨v‡mvwjb, iii) jvBU b¨vc_v, iv) †K‡ivwmb †Zj, v) nvjKv M¨vm †Zj, vi) fvix M¨vm †Zj, vii) c¨vivwdb Iqv·, viii) Ae‡kl (weUzwgb) 03. R-X Gi mv‡_ Na, Mg avZzi wewµqvKv‡j `ªveKiæ‡c e¨envi Ki‡Z nq- [RU.2007-08, JnU. 2011-12] A. ‡K‡ivwmb B. ï®‥ B_vi C. A¨vj‡Kvnj D. wg_vbj mwVK DËi: B. ï®‥ B_vi e¨vL¨v: R-X Gi mv‡_ Na, Mg avZzi wewµqvKv‡j `ªveKiæ‡c wbw®…q cwi‡ek m„wói Rb¨ ï®‥ B_vi e¨envi Kiv nq| 04. †K‡ivwmb GK ai‡bi- [RU.2007-08] A. ‡c‡Uªvwjqvg †KvK B. G‡iv‡gwUK †h․M C. cwjgvi D. nvB‡WªvKve©b mwVK DËi: D. nvB‡WªvKve©b 05. †Kvb ‡h․MwU cUvwkqvg cvig¨v½v‡b‡Ui m‡½ wewµqv K‡i bv? [RU.2006-07] A. C2H6 B. C2H2 C. C2H4 D. C3H6 mwVK DËi: A. C2H6 e¨vL¨v: m¤ú„³ nvB‡WªvKve©b KMnO4 Gi mv‡_ wewµqv K‡i bv| CU 01. evqyi Abycw¯
‡Z KvV‡K 600C ZvcgvÎvq `nb Ki‡j wK cvIqv hvq? [CU-1. 2016-17] A. Møy‡KvR B. †KvK C. KvV Kqjv D. QvB E. Zviwcb mwVK DËi: B. †KvK e¨vL¨v: mKj nvB‡WªvKve©b‡K evqyi Abycw¯
‡Z `nb Ki‡j †KvK Ges ¯^í evqy‡Z `nb Ki‡j CO cvIqv hvq| Avi c~Y©evqy‡Z `nb Ki‡j CO2 cvIqv hvq| 02. †c‡Uªv‡j A¨vw›UbK wnmv‡e ‡hvM Kiv nq wb‡Pi ‡Kvb ‡h․MwU?[CU-F. 2015-16] A. SnCl4 B. (C2H5)4Pb C. AlCl3 D. PbCl4 E. FeCl3 mwVK DËi: B. (C2H5 )4Pb e¨vL¨v: ‡c‡Uªv‡ji Gw›U bK mg~n : TEL, TML, Fe(CO)5 UjyBb, BZ¨vw`| 03. wg‡_‡bi ‡K¬vwi‡bkb wewµqvwU ‡Kvb ai‡bi? [CU-F. 2015-16] A. AcmviY wewµqv B. cÖwZ¯
vcb wewµqv C. ms‡hvRb wewµqv D. RviY wewµqv E. weRviY wewµqv mwVK DËi: B. cÖwZ¯
vcb wewµqv e¨vL¨v: CH4 + Cl2 h –– CH3Cl + HCl 04. wg‡_b Ges †K¬vwib M¨v‡mi wgkªY mivmwi m~‡h©i Av‡jv‡Z wb‡j †h we‡ùviY N‡U Zv‡Z Drcv`¸‡jv n‡jv- [CU.2008-09] A. CH3Cl, HCl B. CH2Cl2, HCl C. CHCl3, HCl D. CCl4, HCl E. C, HCl mwVK DËi: E. C, HCl e¨vL¨v: A. g„`y m~‡h©i Av‡jv‡Z ev 400°C DòZvq wg‡_‡bi m‡½ †K¬vwi‡bi wewµqvq †K¬v‡ivwg‡_b, WvB‡K¬v‡iv wg‡_b, UªvB‡K¬v‡ivwg‡_b I †UUªv †K¬v‡iv wg‡_b Drcbœ nq| i) CH4 + Cl2 400C –––– CH3Cl + HCl ii) CH3Cl + Cl2 CH2Cl2 + HCl iii) CH2Cl2 + Cl2 CHCl3 + HCl iv) CHCl3 + Cl2 CCl4 + HCl B. cÖLi m~h©v‡jv‡K Kve©b I HCl Drcbœ nq| CH4+2Cl2C+4HCl C. AÜKv‡i †Kvb wewµqv nq bv| KU 01. †KvbwU DU©R (Wurtz) wewµqvq AskMÖnY K‡i bv?[KU-A,Set-Kha:2018-19] A. CH3l B. CH3CH2Br C. (CH3)2CHCH2l D. (CH3)3CBr mwVK DËi: D. (CH3)3CBr e¨vL¨v: ‡÷wiK evavi Kvi‡Y 3 o A¨vjKvBj n¨vjvBW DU©R wewµqv †`q bv| 02. c¨vivwdb wK? [KU-A.2017-18; Xv.‡ev. 2016] A. 40% digvjwWnvBW B. 95% B_vbj C. m¤ú„³ nvB‡WªvKve©b D. Am¤ú„³ nvB‡WªvKve©b mwVK DËi: C. m¤ú„³ nvB‡WªvKve©b e¨vL¨v: A¨vj‡Kb ev m¤ú„³ nvB‡WªvKve©b †K c¨vivwdb e‡j| 03. wW‡Rj †Z‡ji g~j Dcv`v‡b KZ Kve©b wewkó nvB‡WªvKve©b we`¨gvb? [KU. 2015-16] A. C4-C10 B. C5-C17 C. C13-C16 D. C13-C17 mwVK DËi: D. C13-C17 e¨vL¨v: M¨vm C1 - C4, jvBU †c‡Uªvwjqvg C5 - C6, †K‡ivwmb •Zj C12 - C15, jvBU b¨vc_v C6 - C7, M¨v‡mvwjb/ †c‡Uªvj C5 - C12, jyweª‡KwUs I‡qj C15 - C18, c¨vivwdb Iqv· C18 - C30, weUzwgb C30 <| 04. †Kvb R¡vjvwbi Kvh©ÿgZv hw` 25% n-‡n‡Þb Ges 75% AvB‡mv-AK‡U‡bi wgkÖ‡Yi gZ nq Zvn‡j H R¡vjvwbi AK‡Ub msL¨v n‡e- [KU. 2014-15] A. 25 B. 100 C. 75 D. 175 mwVK DËi: C. 75 e¨vL¨v: R¡vjvbx n †n‡Þb I AvB‡mv-AK‡U‡bi wgkÖ‡Yi AvB‡mv-AK‡U‡bi cwigvYB nj R¡vjvbxi A‡±b bv¤^vi| 05. m¤c„³ ev A¨vwj‡dwUK nvB‡WªvKve©‡bi Drm- [KU. 2006–07] A. †c‡Uªvwjqvg ‣Zj B. †K‡ivwmb •Zj C. wW‡Rj •Zj D. cÖvK…wZK M¨vm mwVK DËi: cÖkœwU fzj wQj| KviY m¤c„³ ev A¨vwj‡dwUK nvB‡WªvKve©‡bi Drm Dc‡ii PviwU AckbB mwVK| IU 01. H2O I CO-Gi wgkÖY n‡Z nvB‡WªvKve©b Drcv`‡b djcÖm~weRviK wn‡m‡e KvR K‡i- [IU. 2015-16] A. LiAlH4 B. NaBH4 C. Kve©b b¨v‡bv wUD‡e ‡cÖvweó ¯^Y© D. H2/Ni mwVK DËi: C. Kve©b b¨v‡bv wUD‡e ‡cÖvweó ¯^Y© DU-7Clg 01. CH3CH2CH2Br + Na dry ether ––––––– M, M-†h․MwUi bvg Kx? [DU-7Clg. 2019-20] A. †n‡·b B. cÖ‡cb C. cÖwcb D. †nw·b mwVK DËi: A. †n‡·b e¨vL¨v: DU©R wewµqvq D”PZi A¨vj‡Kb •Zwi nq2CH3CH2CH2Br+2Nadry ether ––CH3CH2 †n‡·b CH2CH2CH2CH3+2NaBr STEP 02 ANALYSIS OF SCIENCE & TECHNOLOGY QUESTION SUST 01. ‡KvbwUi ùzUbv¼ m‡e©v”P? [SUST-A. 2019-20] A. CH3CH(CH3)–CH(CH3)–(CH3)4–CH3 B. CH3–(CH2)8–CH3 C. CH3–(CH3)6–CH3 D. CH3–C(CH3)2–C(CH3)2–CH(CH3)–CH3 E. CH3–CH(C2H5)–CH(C2H5)–CH3 mwVK DËi: B. CH3–(CH2)8–CH3

570 •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 e¨vL¨v: mij wkKjhy³ Avj‡K‡bi ùzUbv¼ Kve©b msL¨v e„w×i mv‡_ mv‡_ e„w× cvq (f¨vbWvi Iqvjm kw³ evovi Kvi‡Y| Z‡e †h †Kvb A¨vj‡K‡bi kvLvwqZ mgvYyi ùzUbv¼ bigvj mgvYyi †P‡q Kg Ges kvLv hZB e„w× cvq ùzUbv¼ ZZB n«vm cvq| 02. ‡Kvb& †h․MwUi ùzUbv¼ m‡Ÿv©”P? [SUST-B,2018-19] A. n-A‡±b B. 2,2,4- UªvBwg_vBj †c‡›Ub C. 2,2,3,3- ‡UUªvwg_vBj weD‡Ub D. 3,3- WvBwg_vBj †n‡·b E. 3- wg_vBj †c‡›Ub mwVK DËi: A. n-A‡±b e¨vL¨v: n-A‡±b Gi ¯‥zUbvsK = 125 Avi Ab¨ me¸‡jvi ùzUbv¼ n‡e n– Octone †_‡K Kg KviY b, c, d n‡jv r-A‡±b Gi kvLvwš^Z mgvby Ges e Kve©b msL¨v n-A‡±b †_‡K Kg| JUST 01. wb‡Pi †KvbwU DU©R wewµqvi gva¨‡g A¨vj‡Kb ‣Zwi‡Z wewµqK wn‡m‡e KvR K‡i? [JUST-B: 2019-20] A. A¨vjwKb B. wMÖMbvW© weKviK C. A¨vjKvBj n¨vjvBW D. A¨vjKvBb mwVK DËi: C. A¨vjKvBj n¨vjvBW 02. A¨vj‡Kvn‡ji mv‡_ wMÖMbvW© wewµqK (RMgX) †gkv‡j †KvbwU cÖ¯‧Z nq? [JUST-C: 2019-20] A. A¨vjwKb B. B_vi C. A¨vj‡Kb D. A¨vjKvBb mwVK DËi: C. A¨vj‡Kb e¨vL¨v: RMgX + ROH HCl ––––– H2O Mg(OH)X + R – R 03. DU©R wewµqvq †KvbwU e¨eüZ nq? [JUST-C: 2019-20] A. Na B. K C. CaO D. Ca(OH)2 mwVK DËi: A. Na MBSTU 01. †Kvb c×wZ‡Z Kve©b wkKj Kgv‡bv hvq? [MBSTU-C. 2019-20] A. DU©R wewµqv B. Kvwe©j A¨vwgb wewµqv C. wWKv‡e©vw·‡jkb D. †Kve wewµqv mwVK DËi: C. wWKv‡e©vw·‡jkb e¨vL¨v: Kve©b wkKj Kgv‡bvi wewµqvmg~n- (i) ndg¨vb wW‡MÖ‡Wkb wewµqv (ii) wWKve©w·‡jkb| 02. ‡Kvb †h․MwU A‡cvjvi? [MBSTU-A.2016-17] A. weD‡Ub B. weDUvbj C. weDUv‡bvb D. weDUvbwqK GwmW mwVK DËi: A. weD‡Ub e¨vL¨v: mKj A¨vj‡Kb A‡cvjvi| PUST 01. CH4 + Cl2 CH3–Cl + HCl GB wewµqvi Rb¨ cÖ‡qvRb wK? [PUST-A1/A2.2016-17, RU- 06-07] A. cvwb B. `ªeY C. Av‡jv D. Zvc mwVK DËi: C. Av‡jv e¨vL¨v: AwZ †e¸wb iwk¥ A_ev D”P ZvcgvÎvq A_ev g„`y m~h©v‡jv‡K †K¬vwib I †eªvwgb A¨vj‡K‡bi mv‡_ wewµqv K‡i| HSTU 01. R¡vjvwb †Z‡ji bwKs n«vm Kivi Dcvq †KvbwU? [HSTU-B.2017-18] A. ‡UUªvB_vBj †jW †hvM K‡i B. Zvcxq fv½b C. A¨vjKvB‡jkb D. me¸‡jv mwVK DËi: D. me¸‡jv NSTU 01. iso-weD‡Ub‡K †eªvwg‡bkb Ki‡j †KvbwU Drcbœ nq? [NSTU-C. 2019-20] A. t-weDUvBj †eªvgvBW B. n-weDUvBj †eªvgvBW C. Sec-weDUvBj †eªvgvBW D. n-weDUvbj mwVK DËi: A. t-weDUvBj †eªvgvBW e¨vL¨v: H3C – CH3 | C – H | CH3 + Br – Br H3C– CH3 | C – Br | CH3 + H – Br iso-weD‡Ub tert-weDUvBj †eªvgvBW 02. GKwU R¦vjvwbi AK‡Ub bv¤^vi “70” ej‡Z Kx eySvq?[NSTU-C. 2019-20] A. GwU‡Z 30% C7H16 Av‡Q B. GwU‡Z 70% C6H14 Av‡Q C. GwU‡Z 30% C5H12 Av‡Q D. GwU‡Z 70% C9H20 Av‡Q mwVK DËi: A. GwU‡Z 30% C7H16 Av‡Q e¨vL¨v: GKwU R¦vjvwbi AK‡Ub bv¤^vi 70 ej‡Z eySvq G‡Z 70% isoAK‡Ub I 30% n-†n‡Þb Av‡Q| STEP 03 ANALYSIS OF ENGINEERING & BUTex QUESTION BUET 01. wb‡gœi †Kvb `ªe¨wUi Drcv`‡b cÖvK…wZK M¨vm KuvPvgvj wnmv‡e e¨eüZ nq? [BUET: 13-14] A. CH3OH B. C6H6 C. HCHO D. CH3COOH mwVK DËi: A. CH3OH e¨vL¨v: 2CH4 (g) + O2 (g) 100atm 250C Cu 2CH3 – OH (l) Av‡gwiKvq G c×wZ e¨eüZ nq| 02. wb‡Pi wgkªY¸‡jvi g‡a¨ †KvbwU †c‡Uªvj? [BUET: 2007-2008] A. A¨v‡iv‡gwUK nvB‡WªvKve©bmg~n B. A¨vj‡Kbmg~n C. A¨vjKvBbmg~n D. A¨vjwKbmg~n mwVK DËi: B. A¨vj‡Kbmg~n 03. wb‡gœi wkí wewµqv¸‡jvi g‡a¨ †KvbwU wdkvi-Uªcm c×wZ bv‡g cwiwPZ? [BUET: 05-06] A. C2H4 + H2 Ni/Pt ––– C2H6 B. CO + H2O Zn/CuO ––––– CO2 + H2 C. 8CO + 17H2 Fe Co.Mixture –––––––––––– C8H18 + 8H2O D. CO + 3H2 Ni – CH4 + H2O mwVK DËi: C. 8CO + 17H2 Fe Co.Mixture –––––––––––– C8H18 + 8H2O RUET 01. Kve©b wkK‡ji •`N¨© Abymv‡i wb‡gœi †KvbwU M¨v‡mvwjb ev †c‡Uªvj? [RUET. 2013-14] A. C6C7 B. C5C12 C. C5C6 D. C12C15 E. None mwVK DËi: B. C5C12 e¨vL¨v: A. jvBU b¨vc_v, C. jvBU †c‡Uªvwjqvg, D. ‡K‡ivwmb CUET 01. †mvwWqvg Gwm‡U‡Ui Rjxq `ªe‡Y Zwor we‡kølY Ki‡j †Kvb A¨vj‡Kb Drcbœ nq? [CUET. 2015-16] A. wg‡_b B. B‡_b C. †cÖv‡cb D. weD‡Ub E. †c‡›Ub mwVK DËi: B. B‡_b e¨vL¨v: †mvwWqvg Gwm‡U‡Ui Rjxq `ªe‡Y Zwor we‡kølY Ki‡j †h A¨vj‡Kb Drcbœ nq Zvi KviY Ò‡Kve ms‡kølÓ wewµqv Øviv e¨vL¨v Kiv hvq| wewµqvwU `yB av‡c N‡U| ‡gvU wewµqv:2CH3COONa + H2O Zwor we‡kølY –––––––– CH3–CH3 + 2NaOH + H2 K¨v‡_vW A¨v‡bvW

CHEMISTRY PLUS •Re imvqb 571 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 BUTex 01. wg‡_b‡K `nb Ki‡Z KZ †gvj Aw·‡Rb cÖ‡qvRb n‡e? [BUTex. 2014-15] A. 1 B. 2 C. 3 D. 4 mwVK DËi: B. 2 e¨vL¨v: A¨vj‡K‡bi mvaviY `nb wewµqv CnH2n+2 + 2 3n 1 O2 nCO2+(n+1)H2O CH4 + 2O2 CO2 + H2O STEP 04 ANALYSIS OF MEDICAL & HSC QUESTION MAT 01. CH4+H2O cÖfveK ––––– CO+3H2 wewµqvq †Kvb cÖfveKwU e¨eüZ n‡q‡Q? [MAT. 2017-18] A. K2O B. Ni C. Mo D. Al2O3 mwVK DËi: B. Ni e¨vL¨v: wg‡_b M¨vm‡K w÷g mn D”P Pv‡c I cÖvq 900°C ZvcgvÎvq DËß Ni cÖfve‡Ki Ici Pvjbv Ki‡j ms‡køl M¨vm Drcbœ nq| ms‡køl M¨vm ev Synthesis M¨vm n‡jv GK ‡gvj CO M¨vm I wZb †gvj H2 M¨v‡mi wgkÖY| CH4(g) + H2O(g) 900C Ni ––––––– CO(g) + 3H2(g) 02. †mvWvjvBg †KvbwU? [MAT. 2015-16] A. NaOH(CaO) B. CaO C. NaOH D. Na2CO3 mwVK DËi: A. NaOH(CaO) 03. wb‡gœi †Kvb ivmvqwbK `ªe¨wU dj cvKv‡bvi Rb¨ e¨eüZ nq? [MAT.2011-2012] A. B‡_v‡db B. A¨vmKiweK A¨vwmW C. digvwjb D. BDwiqv mwVK DËi: A. B‡_v‡db e¨vL¨v: B‡_v‡db dj cvKv‡bvi Rb¨ e¨eüZ nq| GQvov Bw_wjbI e¨eüZ nq| DAT 01. wb‡Pi †KvbwU •Re Gwm‡Wi wWKve©w·‡jkb wewµqvq cÖavb Drcbœ c`v_©? [DAT. 2019-20; P.†ev: 2016] A. A¨vjKvBb B. A¨vjwKb C. A¨vj‡Kvnj D. A¨vj‡Kb mwVK DËi: D. A¨vj‡Kb e¨vL¨v: wWKve©w·‡jkb wewµqv: Kve©w·wjK A¨vwm‡Wi †mvwWqvg jeY‡K †mvWvjvBgmn DËß Ki‡j A¨vj‡Kb Drcbœ nq| G wewµqvi Kve©b cigvYyi msL¨v K‡g hvq e‡j G‡K wWKve©w·‡jkb wewµqv e‡j| RCOONa + NaOH(CaO) RH + Na2CO3 02. B‡_b M¨vm †hwU‡Z Drcbœ n‡e- [DAT. 2000-01] A. 4CO + 2H2O NiCO3 ––––––––– 250 - 270C B. CO + 3H2 NiCO3 ––––––––– 250 - 300C C. CH3CH2COONa + NaOH(CaO) – D. CH3COONa + NaOH(CaO) – mwVK DËi: C. CH3CH2COONa + NaOH(CaO) – PART 02 A¨vjwKb m¤úwK©Z Z_¨vewj Item- 01: A¨vjwK‡bi †f․Z ag©: A¨vjwKb ¯^vfvweK ZvcgvÎvq C2C4 ch©šÍ M¨vmxq, C5C15 A¨vjwKb Zij I Gi cieZx©¸‡jv KwVb| Av‡cwÿK MyiæZ¡: (0.566-0.8) Gi g‡a¨ A_©vr cvwb †_‡K nvjKv| Item- 02: cÖ¯‧wZ I ivmvqwbK wewµqv: A¨vjwKb (A‡jwdb) R–CH=CH2 Mvp H2SO4 + RCH2CH2OH Pd/BaSO4 , 25C RHC CH Al2O3, 350C RCH2CH2OH 100C (A¯
vqx †h․M) 160-180C (¯
vqx †h․M) H2/Ni,150-200C A_ev H2/Pt/Pd, 25C nvB‡WªvwR‡bkb/nvB‡Wªv‡Rb ms‡hvRb R–CH2–CH3 (X2 = Cl2, Br2)/CCl4 n¨v‡jvwR‡bkb R–CHX–CH2X HX gvK©wbKf (‡Zjv gv_vq †Zj) R–CHX–CH3 HBr (ïaygvÎ) wecixZgviKwbKf/Lvivm/H2O2 B‡d± RCH2CH2Br KMnO4 (†Mvjvcx) + H2O/KOH †eqvi cix¶v RCHCH2 OH OH (eY©nxb) Br2 (jvj)/CCl4 ‡eªvwgb `ªeY cix¶v RCHCH2 Br Br (eY©nxb) O3/CCl4 + Zn I‡RvbxKiY RCHO + HCHO A¨vjwK‡bi ivmvqwbK wewµqv g‡b ivLvi wUªKm: cwji RyZv Rvwi‡bi Kv‡Qcwji cwjgviKiY RyZv hyZ ev ms‡hvRb Rvwi‡bi RviY Kv‡Q Kve©‡bi `nb * g‡b ivLv fv‡jv : HCl KL‡bv Gw›UgviKwbKf/Lvivm/H2O2 B‡d± †`qbv|

572 •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- 03: gvK©wbKf I wecixZ gvK©wbK‡fi bxwZ: RCH = CH2 AcÖwZmg Kve©b HX/HOX/HCN AcÖwZmg †h․M gvK©wbKf RCHCH2 X/OH/CN H/X Q‡›` Q‡›` gvK©wbK‡fi bxwZG RM‡Z nvq! †mB †ekx Pvq, hvi Av‡Q H fzwi fzwi| wecixZ gvK©wbKf/Lviv‡mi bxwZ H2O2 cÖfve (X = Br) RCHCH2 H X Q‡›` Q‡›` Lviv‡mi bxwZciKv‡ji K_v †f‡e hvi Av‡Q Kg Zv‡KB w`‡e... D`vniY: CH3CH = CH2 + HOBr+ CH3CHCH2 OH Br Item- 04: A¨vjwK‡bi I‡RvbxKiY I I‡Rv‡bvjvBwmm: A¨vjwK‡bi IRbxKi‡Y wZb ai‡bi cÖkœ _v‡K- (i) KLb A¨vjwWnvBW Avi KLb wK‡Uvb n‡e? (ii) KLb Drcv` GKwU Avi KLb GKvwaK n‡e? (iii) Drcv` †`Iqv _vK‡j wewµqK wK n‡e? Gevi we‡kølYx `„wó wb‡q D`vniY jÿ¨ Kwi- A¨vjwK‡bi IRb ms‡hvRb Gi wbqg- cÖ‡kœ cÖ`Ë †h․‡M we`¨gvb Kve©b-Kve©b wØ-eÜb m¤ú~Y©iƒ‡c †f‡½ w`‡q cÖwZwU Kve©‡bi mv‡_ wØ-eÜb (=) w`‡q ‘O’ hy³ K‡i †h Drcv` cvIqv hvq †mwUB DËi| Av‡iv mnR K‡i ej‡j, I‡Rv‡bi wZbwU O †K wØ-eÜbhy³ `yB Kve©b‡K `yBwU O Ges Zn †K GKwU O w`‡Z n‡e| A_©vr mvg¨ev`x AvPiY Ki‡Z n‡e| C = CHR (i) O3 (ii) Zn/H2O R R C=O + RCHO + ZnO + H2O R R O w`‡Z n‡e O w`‡Z n‡e O w`‡Z n‡e ? mZK©Zv: I‡Rv‡bvBjvBwmm wewµqvq H2O2 Gi RviY wµqv aŸsm Kivi Rb¨ wRsK e¨envi Kiv nq| hw` wRsK e¨envi Kiv bv nq Z‡e Kve©wbj hy³ †h․M RvwiZ n‡q •Re GwmW •Zwi K‡i| H2O2 H2O + [O] RCHO + [O] RCOOH Case-01: A¨vjwWnvBW bvwK wK‡Uvb? t- wØ-eÜbhy³ Kve©‡bi mv‡_ nvB‡Wªv‡Rb _vK‡j A¨vjwWnvBW Avi nvB‡Wªv‡Rb bv _vK‡j wK‡Uvb n‡eC = CHR + O3 (i) CCl4 (ii) Zn/H2O R R C=O + RCHO + ZnO + H2O R R H bvB ZvB Drcv` n‡e wK‡Uvb H Av‡Q ZvB Drcv` n‡e A¨vjwWnvBW Case-02: Drcv` GKwU bvwK GKvwaK? t- wØ-eÜbhy³ Kve©‡bi Dfq cv‡k GKB iKg MÖæc _vK‡j Drcv` n‡e GKwU Ges †mUv n‡e 2 AYy| Abyiƒcfv‡e wØ-eÜbhy³ Kve©‡bi mv‡_ wfbœ iKg _vK‡j Drcv`I wfbœ iKg n‡e| D`vniY-01: Case-01 Gi †ÿ‡Î A¨vjwWnvBW I wK‡Uvb A_©vr `ywU wfbœ Drcv` •Zwi n‡q‡Q| D`vniY-02: wb‡Pi wØ-eÜbhy³ Kve©‡bi mv‡_ Same MÖæc hy³ _vKvq GKB iKg Drcv` •Zwi n‡q‡Q| (i) CCl4 (ii) Zn/H2O C=O + O=C + ZnO + H2O R R wØ-eÜbhy³ Kve©‡bi mv‡_ GKB iKg C = C + O3 R R R R R R Drcv` n‡e GKwU (2 AYy wK‡Uvb) Case-03: Drcv` †_‡K wewµqK †ei Kivi mnR †UKwbK: wb‡Pi D`vniY‡K †K›`ª K‡i P‡jv G‡Mv‡Z _vwKGKwU •Re †h․M C6H12 I‡RvbxKi‡Yi ci wRs‡Ki Dcw¯
wZ‡Z Av`ª © we‡kølY Ki‡j `yBwU Drcv` Gwm‡Uvb I †cÖvcvb¨vj cvIqv hvq| C6H12 Gi mwVK MVb wK? Step-01: †h․M `ywUi ms‡KZ‡K cvkvcvwk O gyL eivei emv‡Z n‡e| C=O + CH3 – CH2 – CHO CH3 A¨vwm‡Uvb CH3 †cÖvcvb¨vj Step-02: O †K ev` w`‡q cvkvcvwk Kve©‡bi gv‡S wØ-eÜb emv‡Z n‡e| 2 C = 3 CH – 4 CH2 – 5 CH3 1 CH3 CH3 Step-03: †h․MwUi IUPAC Name †ei Ki‡Z n‡e| 2,3-WvBwg_vBj weDwUb-2 ?? Rvbv ARvbv ?? Am¤c„³Zv cixÿvq wØ ev wÎ-e܇bi Dcw¯’wZ wbY©q Kiv nq| I‡RvbxKiY cixÿvq wØ ev wÎ-e܇bi Ae¯’vb I msL¨v wbY©q Kiv nq|

CHEMISTRY PLUS •Re imvqb 573 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: A¨vjwKb kbv³KiY : cixÿv weKviK kbv³Kvix eY© ‡eªvwgb `ªeY (Br2 + CCl4) cixÿv 2%CCl4 + Br2 (jvj eY©) ‡eªvwg‡bi jvj eY© `~ixf~Z nq ‡eqvi cixÿv 2% KMnO4 (‡Mvjvcx eY© + KOH) ‡Mvjvcx eY© `~ixf~Z nq Item-06: Bw_wj‡bi e¨envi : B_vBj A¨vj‡Kvnj Drcv`‡b| Aw·-Bw_wjb wkLv cÖ¯‧wZ‡Z| K…wÎg Dcv‡q KvPv dj cvKv‡Z| ‡PZbvbvkK iƒ‡c cøvwóK wk‡í Short Ans Question SAQWRITTEN SUGGESTION BAQ Broad Ans Question cÖkœ-01 : †cÖvwcb Gi m‡½ HBr Ges HBr (Peroxide) Gi wewµqv `yÕwU wjL| †KvbwU Markovnikov Ges †KvbwU Anti Markovnikov m~Î AbymiY K‡i D‡jøL Ki| [RU. 2019-20] DËi : AcÖwZmg A¨vjwK‡bi mv‡_ AcÖwZmg weKvi‡Ki wewµqvq weKvi‡Ki H ev, abvZ¥K cÖvšÍwU A¨vjwK‡bi wØeÜb hy³ †hb Kve©‡b †ewk H cigvYy _v‡K cÖavbZ †m Kve©b cigvYy‡Z hy³ nq| 2CH3 – CH = CH2 + 2HBr ––– †cÖvwcb CH3CH2CH2Br (99%) H2O2 H2O2 CH3CH BrCH3 (1%) 2CH3 – CH = CH2 + 2HBr ––– †cÖvwcb CH3–CHBr–CH3, 2–†eªv‡gv †cÖv‡cb (90%) CH3–CH2–CH2Br, 1–†eªv‡gv †cÖv‡cb (10%) cÖkœ-02:1-weDUvbj Gi GKwU AcmviY wewµqv †jL| [DU. 2019-20] DËi: CH3CH2CH2 1-butanol CH2OH + H2SO4 170C –––– CH3CH2CH but-1-ene = CH2 + H2O + H2SO4 GwU n‡jv 1-weDUvbj Gi AcmviY wewµqv| AcmviY wewµqvq mvaviYZ HX, H2O, H2 †h․Mmg~n AcmvwiZ nq| cÖkœ-03: A¨vjwKb I A¨vjKvBb †kÖYxfz³ nvB‡WªvKve©bmg~‡ni mvaviY ms‡KZ wjL| [CUET. 2003-04] DËi: CnH2n , CnH2n2 cÖkœ-04: wK N‡U, ivmvqwbK mgxKi‡Yi mvnv‡h¨ wjL, hLb: H2O2 Gi mv‡_ I‡Rv‡bi wewµqv Kiv nq [BUET. 2009-10] DËi: H2O2 + O3 H2O + 2O2 cÖkœ-05:gvK©wbK‡fi wbqgwU D`vniYmn e¨vL¨v Ki| [P.‡ev. 2015] DËi: Part-02, Item-03 REAL TEST ANALYSIS OF PREVIOUS YEAR QUESTIONS STEP 01 ANALYSIS OF GENERAL UNIVERSITY QUESTION DU 01. nvB‡Wªv‡Rb †eªvgvB‡Wi mv‡_ †cÖvwc‡bi wewµqvq cÖavb Drcv` n‡jv- [DU-Ka. 2014-15, JnU. 2016-17] A. 1-bromopropane B. 2-bromopropane C. 1,2-dibromopropane D. 2-bromopropene mwVK DËi: B. 2-bromopropane e¨vL¨v: gvK©wbK‡fi bxwZ AbyhvqxÑ CH3–CH=CH2+HBrCH3– | Br CH – H | CH2 ‡cÖvwcb 2–bromopropane 02. B_vbj‡K 170˚C ZvcgvÎvq AwZwi³ Mvp mvjwdDwiK GwmW Øviv wewµqv Kiv‡j Kx Drcbœ nq? [DU. 2012-2013, 2008-09, 2004-05; RU.2016-17] A. C2H5HSO4 B. C2H4SO4 C. CH2=CH2 D. CH3CHO mwVK DËi: C. CH2=CH2 e¨vL¨v: CH3CH2OH+H2SO4(excess) 170C –––– CH2 =CH2 03. wb‡gœi wewµqvwUi cÖavb Drcv` wK? [DU. 2011-12; 1997-98; RU. 2007-08] CH2 = CH2 + KMnO4 H2O ? A. ethanoic acid B. ethylene glycol C. ethyl alcohol D. ethylene oxide mwVK DËi: B. ethylene glycol e¨vL¨v: CH2 = CH2 + KMnO4 H2O CH2CH2 OH OH 04. C6H12 AvYweK ms‡KZ wewkó GKwU A¨vjwKb‡K IR‡bvjvBwmm Kivi ci wR¼ Gi Dcw¯
wZ‡Z Av`ª© we‡køwlZ Ki‡j wb‡gœi †Kvb †h․MwU Drcbœ nq? [DU. 2009-2010;2008-09; RU.2007-08] A. CH3CHO B. CH3COCH3 C. HCHO D. CH3CH2CHO mwVK DËi: B. CH3COCH3 e¨vL¨v: G ai‡bi wewµqvq wZbwU AvB‡Ug Av‡Q jÿ Ki- (i)CH3CH2CH=CH–CH2CH3+O3 Zn/H2O –––––– 2CH3CH2CHO [wØ-e܇bi Dfq cv‡k¦© Kve©b msL¨v mgvb I GKB iKg ZvB Drcv` n‡e GKwU] (ii) (CH3 )2C=CH–CH2CH3+O3 Zn/H2O –––––– CH3COCH3+CH3CH2CHO

574 •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 [wØ-e܇bi ‡h cv‡k¦© Kve©‡bi mv‡_ nvB‡Wªv‡Rb Av‡Q Zv‡Z A¨vjwWnvBW Ges nvB‡Wªv‡Rb bv _vK‡j wK‡Uvb •Zix nq|] (iii) (CH3)2C=C(CH3)2+O3 Zn/H2O –––––– 2CH3COCH3 [wØ-e܇bi Dfq cv‡k¦© Kve©b msL¨v mgvb I GKB iKg ZvB Drcv` n‡e GKwU] m~Îg‡Z A¨vjwWnvBW I wK‡Uvb DfqB mwVK| Z‡e G‡ÿ‡Î wK‡Uvb DËi Kiv †kªq| 05. GKwU •Re †h․M C6H12 I‡RvbxKi‡Yi ci wRs‡Ki Dcw¯
wZ‡Z Av`ª© we‡kølY Ki‡j `yBwU Drcv` †`q hvi GKwU Gwm‡Uvb| C6H12 Gi mwVK MVb wK? [DU. 2008-09, 2011-2012; SUST. 2018-19] A.(CH3)2CHCH = CHCH3 B. (CH3)2C = C(CH3)2 C. CH3CH2CH = C(CH3)2 D. CH3CH2C(CH3) = CHCH3 mwVK DËi: C. CH3CH2CH = C(CH3)2 e¨vL¨v: Item-04, Case-03 †`L| 06. wb‡Pi wewµqvwUi cÖavb Drcv` wK? [DU. 2008-2009] CH3CH2OH+H2SO4(excess) 180C –––– A. CH3CH2 CH2OH B. CH2 =CH2 C. CH3CH2OCH2CH3 D. CH3CHO mwVK DËi: B. CH2 =CH2 e¨vL¨v: CH3CH2OH+H2SO4(excess) 180C –––– CH2 =CH2 G cÖm‡½ †R‡b ivLv fv‡jv: B_vbj †_‡K Bw_wjb / B_vi cÖ¯‧wZCH3CH2OH B_vbj Mvp H2SO4, 100C CH3CH2OSO3H B_vBj nvB‡Wªv‡Rb mvj‡dU Mvp H2SO4, 140C C2H5OC2H5 WvB B_vBj B_vi Mvp H2SO4, 160-180C CH2 = CH2 Bw_wjb Al2O3, 350C CH2 = CH2 Bw_wjb 07. wb‡Pi †KvbwU I‡RvbxKiY I Av`ª© we‡køl‡Yi d‡j ïay GKwU Drcv`K †`‡e? [DU. 06-2007] A. CH3(CH3)=C(CH3)CH3 B. CH3CH=CHCH(CH3)CH3 C. CH3CH2CH=CHCH2CH3 D. CH3=CH(CH3)CH(CH3)CH3 mwVK DËi: C. CH3CH2CH=CHCH2CH3 e¨vL¨v: I‡RvbxKi‡Yi †ÿ‡Î wØe܇bi Dfq cv‡k Kve©b msL¨v I nvB‡Wªv‡Rb msL¨v mgvb n‡j Drcbœ e¯‧ n‡e GKwU| g‡b ivL‡e, wØ e܇bi Dfq cv‡k hZwU Kve©b Av‡Q I‡RvbxKiY Ki‡j ZZ Kve©b wewkó Kve©wbj †h․M (A¨vjwWnvBW ev wK‡Uvb) cvIqv hvq| CH3CH2CH=CHCH2CH3 Ozonilysis ––––––– 2CH3CH2CHO 08. •Re †h․‡M Kve©b-Kve©b wØe܇bi Ae¯
vb wbY©‡q wb‡Pi †Kvb c×wZwU e¨envi Kiv hvq? [DU. 2005-06; RU. 2007-08; MBSTU. 2016-17] A. addition of hydrogen B. hydrolysis C. epoxiation D. ozonolysis mwVK DËi: D. ozonolysis 09. Bw_b‡K ÿvixq cUvwmqvg cvig¨vsMv‡bU `ªe‡Yi g‡a¨ w`‡q cÖevwnZ Ki‡j wb‡Pi †Kvb †h․‡M cwiYZ nq? [DU. 1997-98, RU. 2007-08] A. CH3COOH B. HOH2CCH2OH C. H2CCH2 D. H3CCHO mwVK DËi: B. HOH2CCH2OH e¨vL¨v: wbi‡cÿ ev ÿvixq cUvwkqvg cvig¨v½v‡b‡Ui jNy `ªeY GKwU RviK| GwU A¨vjwKb‡K RvwiZ K‡i MøvBKj Drcbœ K‡i| G‡K nvBWªw·‡jkb I e‡j| ‡hgb: Bw_b Dc‡iv³ k‡Z© Bw_wjb MøvBKj G cwiYZ nq| CH2 = CH2 + [O] Basic KMnO4 –––––––––– HOH2C–CH2OH JnU 01. 2-weDUvbj ‡K Mvp H2SO4 mn DËß Ki‡j ‡KvbwU AwaK cwigv‡Y Drcbœ n‡e? [JnU. 2015-16] A. 1– weDwUb B. 2– weDwUb C. 2– weDUv‡bvb D. weDUvb¨vj mwVK DËi: B. 2– weDwUb e¨vL¨v: mvB‡Rd bxwZ ev Acmvi‡Yi bxwZ2CH3CHCHCH3 H OH Mvp H2SO4 , H2O CH3CH = CHCH3 weDwUb-2 (80%, cÖavb Drcv`) CH3CH2CH = CH2 weDwUb-1 (20%) JU 01. H2C = CH2 Gi mv‡_ Br/H2O †hvM Ki‡j Drcbœ n‡e?[JU-D,Set-C: 2018-19] A.Br-CH2 –CH2OH B. BrH2C – CH2Br C. HCHO D. CH3 – CH2OH mwVK DËi: A.Br-CH2 –CH2OH e¨vL¨v: CH2 = CH2 + HBr CH3 – CH2 – Br CH2 = CH2 + (Br2 + H2O) [Br2+H2O HBr+HOBr] CH2 = CH2 + HOBr CH2 – CH2 Br OH 02. †KvbwU I‡RvbvBW MVb K‡i bv? [JU-D7.2017-18] A. mvB‡K¬vn‡·b B. Bw_b C. B_vBb D. ‡ebwRb mwVK DËi: A. mvB‡K¬v‡n‡·b e¨vL¨v: Bw_b, B_vBb Ges ‡ebwR‡bi KvVv‡gv‡Z cvB () eÜb _vKvq I‡RvbvBW MVb Ki‡Z cv‡i| wKš‧ mvB‡K¬v‡n‡·b G cvB () eÜb Abycw¯
Z| 03. †Kvb A¨vjwK‡bi I‡RvbxKiY wewµqvq CH3CH2CHO Ges CH3COCH3 Drcbœ K‡i? [JU. 2010-2011] A. 2-wg_vBj‡cw›Ub-2 B. 2-wg_vBj‡cw›Ub-1 C. 4-wg_vBj‡cw›Ub-1 D. 4-wg_vBj‡cw›Ub-2 mwVK DËi: A. 2-wg_vBj ‡cw›Ub-2 e¨vL¨v: CH3CH2CHO + OC(CH3)2 CH3CH2CH = C(CH3) 04. H3C–CH=C(CH3)–CH = CH2 †h․MwU‡K I‡Rv‡bvjvBwmm Ki‡j wb‡gœi †KvbwU Drcbœ nq bv? [JU. 2009-2010] A. CH3 – HC = 0 B. O=C(CH3)–CHO C. OHC – CHO D. H – CHO mwVK DËi: C. OHC – CHO e¨vL¨v: ïay A¨vjKvBb (A¨vwmwUwjb) n‡Z MøvBA·vj cvIqv m¤¢e| A¨vjwKb †_‡K MøvBA·vj cvIqv m¤¢e bq| RU 01. cÖwZmg A¨vjwK‡bi mv‡_ HCl ev HBr Gi wewµqvq Drcv` cvIqv hvq- [RU-Ka,Set-3: 2018-19] A. 2 wU B. 3 wU C. 4 wU D. 1 wU mwVK DËi: D. 1 wU e¨vL¨v: cÖwZmg A¨vjwK‡bi mv‡_ AcÖwZmg weKviK ev HBr ms‡hvwRZ n‡j ïaygvÎ GKwU Drcv` †`q Ges AcÖwZmg A¨vjwK‡bi mv‡_ `ywU Drcv` †`q| 02. †Kvb †h․MwU †eªvwg‡bi mv‡_ wewµqv K‡i bv? [RU-G1.2017-18] A. C2H4 B. C4H8 C. C2H6 D. C2H2 mwVK DËi: C. C2H6 e¨vL¨v: Am¤ú„³ nvB‡WªvKve©b †eªvwg‡bi mv‡_ wewµqv K‡i †eªvwg‡bi jvj eY© `~i K‡i| C2H6 m¤ú„³ e‡j GwU †eªvwg‡bi mv‡_ wewµqv K‡i bv|

CHEMISTRY PLUS •Re imvqb 575 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 03. CH3CH = CH2+HBr H2O2 ––– [RU-C.2016-17, SUST-A. 2016-17] A. (CH3)2CHOH B. CH3CH2CH2OH C. CH3CH2CH2Br D. (CH3)2CHBr mwVK DËi: C. CH3CH2CH2Br e¨vL¨v: CH3CH=CH2+HBr H2O2 –––CH3CH2CH2Br {1-‡eªv‡gv†cÖv‡cb(90%)} 04. wb‡¤œi †hŠM¸wji g‡a¨ †KvbwU mn‡R ‡eªvwg‡bi mv‡_ wewµqv K‡i? [RU-F. 2015-16] A. C3H8 B. C4H8 C. C2H2 D. C4H10 mwVK DËi: B. C4H8 e¨vL¨v: A¨vjwKb mg~n Lye mn‡R †eªvwg‡bi mv‡_ ms‡hvRb wewµqv †`q| 05. A¨vjwK‡bi m‡½ †eªvwgb `ªe‡Yi hyZ wewµqvq `ªeYwU nq- [RU. 2009-10, 2013-14] A. bxj B. mv`v C. Kv‡jv D. eY©nxb mwVK DËi: D. eY©nxb e¨vL¨v: ‣Re †h․‡Mi Am¤ú„³Zvi †eªvwgb `ªeY cixÿvt i) ‡eªvwg‡bi jvj eY© AcmvwiZ nq| ii) wbw®…q `ªveK wn‡m‡e CCl4 e¨eüZ nq| CU 01. wb‡Pi †Kvb&wU cÖ‡qvM K‡i KvuPv dj cvKv‡bv nq? [CU. 2014-15] A. Ca+H2O B. CaC2 C. CaS D. CaC2+CH3OH E. Ca(OH)2 mwVK DËi: B. CaC2 e¨vL¨v: Kvev©BW cÖ‡qvM K‡i KuvPv dj cvKv‡bv nq| 02. wb‡Pi †Kvb †h․MwU ÿvixq KMnO4 Gi mv‡_ wewµqv K‡i bv? [CU. 12-13] A. CH2 = CH2 B. CH CH C. CH3CH = CH2 D. C6H6 E. CH3CH2CH = CH2 mwVK DËi: D. C6H6 e¨vL¨v: †ebwR‡b G wØeÜb _vKv m‡Ë¡I ÿvixq KMnO4Gi mv‡_ wewµqv K‡i bv| KU 01. cÖvq 350-400C G DËß A¨vjywgbv ¸uovi Dci w`‡q A¨vj‡Kvn‡ji ev®ú‡K Pvjbv Ki‡j GK AYycvwb AcmvwiZ n‡q wK Drcbœ nq? [KU-Rx:A: 2016-17; DU.2009-10] A. A¨vj‡Kb B. A¨vjwKb C. A¨vjKvBb D. †ebwRb mwVK DËi: B. A¨vjwKb e¨vL¨v: C2H5OH Al2O3(hot) –––––––– 350-400C CH2 = CH2 + H2O 02. KuvPv dj cvKvevi Rb¨ e¨eüZ nq †KvbwU? [KU. 2015-16] A. †cÖvwcb B. Bw_b C. weDwUb D. mvjdvi mwVK DËi: B. Bw_b DU-7Clg 01. †Kvb †h․MwU DËß I Nb KMnO4(aq) Øviv RvwiZ n‡q ïaygvÎ A¨vwmwUK A¨vwmW †`q? [7clg,Unit-A:2018-19] A. CH CH B. CH3CH2CH=CH2 C. CH3CH=CH2 D. CH3CH=CHCH3 mwVK DËi: D. CH3CH=CHCH3 e¨vL¨v: A¨vjwKbmg~n g„`y fv‡e RvwiZ n‡q MøvBKj Ges Zxeªfv‡e RvwiZ n‡q •Re GwmW Drcbœ K‡i| CH3CH = CHCH3 4[O] KMnO4 2CH3COOH STEP 02 ANALYSIS OF SCIENCE & TECHNOLOGY QUESTION SUST 01. †Kvb A¨vjwKbwU‡K I‡Rvb we‡kølY Ki‡j B_vb¨vj I †cÖvcv‡bvb •Zwi nq? [SUST-B. 2019-20] A. CH3CH = CH–CH(CH3)2 B. C3H7CH = C(CH3)2 C. CH3–CH2–CH = C(CH3)2 D. (CH3)2C = C(CH3)2 E. (CH3)2C = CHCH3 mwVK DËi: E. (CH3)2C = CHCH3 e¨vL¨v: C = C CH3 H CH3 CH3 O3 CCl4 C CH3 H O C CH3 CH3 O ,Zn H2O O CH3CHO+CH3CCH3+ZnO O || 02. wb‡¤œi †Kvb †h․M‡K I‡Rvb we‡kølY K‡i †cÖvcv‡bvb mn Ab¨ GKwU †h․M cvIqv hvq? [SUST-B.2018-19] A. CH3-CH=CH-CH(CH3)2 B.CH3-CH2-CH=C(CH3)2 C. C4H9CH=CH2 D. C2H5(CH3)C=CH-CH3 E. (CH3)2C=C(CH3)2 mwVK DËi: B.CH3-CH2-CH=C(CH3)2 e¨vL¨v: (CH3-CH2-CH=C(CH3)2 †K I‡Rvb Øviv we‡kølY Ki‡j `ywU Drcv` (GKwU †cÖvcv‡bvb I GKwU †cÖvcvb¨vj) cvIqv hvq| 03. †KvbwUi mv‡_ B_vbjxq KOH Gi wewµqvq ïaygvÎ GKwU A¨vjwKb Drcvw`Z nq? [SUST-B.2017-18] A. 2- ‡eªv‡gv-2- wg_vBj‡cÖv‡cb B. 2- ‡eªv‡gv-2- wg_vBj‡n‡·b C. 2- ‡eªv‡gv-4- wg_vBj‡c‡›Ub D. 2- †eªv‡gvweD‡Ub E. 2- †eªvgv - 3 - wg_vBjweD‡Ub mwVK DËi: A. 2- ‡eªv‡gv-2- wg_vBj‡cÖv‡cb e¨vL¨v: Uviwkqvix weDUvBj †eªvgvBW (2-‡eªvgv-2-wg_vBj †cÖv‡cb) †_‡K 100% 2- wg_vBj cÖwcb-1 ev AvB‡mvweDwUwjb Drcbœ nq| CH3CCH3 + KOH (alc) CH3C = CH2 + KBr + H2O CH3 Br CH3 04. CCl4–Br2 `ªe‡Y (jvjeY©) †Kvb †h․M †hvM Ki‡j `ªeY d¨vKv‡k ev eY©nxb n‡q hvq? [SUST-B.2016-17] A. ‡cÖvcvbj B.†cÖvwcb-1 C. †ebwRb D. Uviwkqvwi weD‡Ub E. GwmwUK GwmW mwVK DËi: B.†cÖvwcb-1 e¨vL¨v: CCl4/Br2 `ªeY Øviv Am¤ú„³ `ªeY cixÿv Kiv nq| †cÖvwcb-1 Am¤ú„³ nIqvq Zv D³ `ªe‡Y d¨vKv‡m/eY©nxb n‡q hvq| 05. X ‡h․M‡K I‡Rv‡bvjvBwmm Ki‡j †cÖvcvb¨vj I B_vb¨vj Drcbœ nj; X wK? [SUST 09-10] A. 1-†cw›Ub B. 2-‡cw›Ub C. 1-‡c›UvBb D. 1-weDwUb mwVK DËi: B 2-‡cw›Ub e¨vL¨v: CH3CH2C = O + O = CCH3 CH3CH2CH = CHCH3 H †cÖvcvb¨vj †c›U-2-Bb/†cw›Ub-2 H B_vb¨vj 06. ÿvixq cUvwkqvg cvig¨v½v‡b‡Ui kxZj jNy Rjxq `ªe‡Y GKwU •Re B‡_b 1,2-WvBIj Drcbœ K‡i| ‣RewU‡Z Kve©b-Kve©‡bi eÜb wKiƒc? [SUST 09-10] A. B. , C. , , D. , mwVK DËi: B. , e¨vL¨v: kZ© †_‡K eySv hv‡”Q, †h․MwU GKwU A¨vjwKb| Avi A¨vjwK‡bi g‡a¨ Kve©b-Kve©‡bi wØe܇bi gv‡S GKwU wmMgv eÜb I GKwU cvB eÜb Av‡Q|