Tiêu đề 2. FRB Chem. Ch-02, P-2 MCQ & CQ Withsolve 04-05-2024[1].pdf ✅

•Re imvqb  Final Revision Batch 1 •Re imvqb Organic Chemistry wØZxq Aa ̈vq Topicwise Board Analysis eûwbe©vPwb cÖkœ UwcK 2017 2018 2019 2021 2022 2023 †gvU •Re †hŠ‡Mi Kvh©Kix g~jK, bvgKiY I mgvYyZv 6 2 8 8 8 9 41 A ̈vj‡Kb, A ̈vjwKb I A ̈vjKvBb 7 1 5 4 4 6 27 A ̈vjKvBj n ̈vjvBW (SN1, SN2) 2 Ñ 1 2 2 4 11 A ̈vj‡Kvnj I B_vi 4 1 1 3 2 5 16 A ̈vjwWnvBW I wK‡Uvb 3 1 6 4 5 6 25 A ̈vwgb, •Re GwmW I G÷vi 6 Ñ 4 4 5 7 26 A ̈v‡iv‡gwUK †hŠM 3 2 5 4 6 8 28 m„Rbkxj cÖkœ UwcK 2017 2018 2019 2021 2022 2023 †gvU •Re †hŠ‡Mi Kvh©Kix g~jK, bvgKiY I mgvYyZv 3 1 3 5 7 3 22 A ̈vj‡Kb, A ̈vjwKb I A ̈vjKvBb 5 1 5 5 8 6 30 A ̈vjKvBj n ̈vjvBW (SN1, SN2) 6 1 7 3 6 8 31 A ̈vj‡Kvnj I B_vi 3 1 7 5 3 6 25 A ̈vjwWnvBW I wK‡Uvb 1 Ñ 1 3 3 Ñ 8 A ̈vwgb, •Re GwmW I G÷vi 1 1 1 4 4 2 13 A ̈v‡iv‡gwUK †hŠM 3 Ñ 3 8 4 8 26 *we.`a.: 2020 mv‡j GBPGmwm cixÿv AbywôZ nqwb| ACS Chemistry Department Gi g‡bvbxZ eûwbe©vPwb cÖkœmg~n •Re †hŠ‡Mi Kvh©Kix g~jK, bvgKiY I mgvYyZv 1. bvBUavBj g~jK †KvbwU? [Xv. †ev. 23] – NO2 – NO – CNO – CN DËi: – CN e ̈vL ̈v: – CN n‡jv mvqvbvBW ev bvBUavBj g~jK| wb¤œwjwLZ †ek wKQz †kÖwY †hŠ‡Mi Kvh©Kix g~j‡Ki ms‡KZ I MvVwbK ms‡KZ †`Iqv n‡jv- μwgK mg‡MvÎxq †kÖwY Kvh©Kix g~j‡Ki bvg g~j‡Ki ms‡KZ g~j‡Ki MvVwbK ms‡KZ 1. A ̈vjwKb A ̈vjwKb ev Awjwdb g~jK CnH2n C = C 2. A ̈vjKvBb A ̈vjKvBb ev A ̈vwmwUwjb g~jK CnH2n – 2 – C  C – 2. A ̈vgvB‡Wi Kvh©Kix g~jK †KvbwU? [Xv. †ev. 23] – CNS – CO – NH – – NH2 – CO – NH2 DËi: – CO – NH2 3. C(CH3)3 – OH †hŠMwUi IUPAC bvg Kx? [iv. †ev. 23] 2-wg_vBj †cÖv‡cb-2-Aj AvB‡mv weDUvBj A ̈vj‡Kvnj 2, 2-WvBwg_vBj B_vbj weDUvbj DËi: 2-wg_vBj †cÖv‡cb-2-Aj e ̈vL ̈v: CH3 – CH3 3 | C – 2 | 1CH3 OH 2- wg_vBj †cÖv‡cb-2-Aj 4. CH3 – CH = CH – COOH †hŠMwUi IUPAC bvg n‡jv- [h. †ev. 23] But – 1 – en – 2 – oic acid But – 2 – en – 2 – oic acid But – 2 – en – 1 – oic acid But – 1 – oic acid DËi: But – 2 – en – 1 – oic acid e ̈vL ̈v: 4 CH3 – 3 CH = 2 CH – 1 COOH weDU-2-Bb-1- IwqK GwmW
2  Chemistry 2 nd Paper Chapter-2 5. | CH3C = C Cl | Cl †hŠMwU †Kvb ai‡bi mgvYyZv cÖ`k©b K‡i? [Kz. †ev. 23] MvVwbK Av‡jvK mwμq R ̈vwgwZK Kvh©Kix g~jK DËi: R ̈vwgwZK e ̈vL ̈v: R ̈vwgwZK mgvYyZvi kZ©: (i) Kve©b-Kve©b e܇bi gy3 N~Y©b _vK‡e bv| (ii) wØ-eÜb hy3 A_ev PvwμK †hŠM n‡Z n‡e| (iii) C = C b d e a AYy‡Z a d Ges b  e| cÖ`Ë †hŠMwUi MVb n‡e: C = C H3C Cl Cl  GwU R ̈vwgwZK mgvYyZv cÖ`k©b K‡i| 6. Av‡jvK mwμq mgvYy nIqvi Rb ̈ A ̈vj‡K‡bi me©wb¤œ Kve©b msL ̈v n‡e- [h. †ev. 23] 7 8 9 10 DËi: 7 e ̈vL ̈v: me©wb¤œ mvZ (7) Kve©b wewkó A ̈vj‡Kb Av‡jvK mwμqZv cÖ`k©b K‡i| Av‡jvK mwμq A ̈vj‡K‡b Aek ̈B AcÖwZmg Kve©b _vK‡Z n‡e| AcÖwZmg KvBivj Kve©‡b PviwU wfbœ GK †hvRx g~jK ev cigvYy hy3 _v‡K| mvZ A‡cÿv Kg Kve©b wewkó †Kv‡bv A ̈vj‡K‡b AcÖwZmg Kve©b we` ̈gvb _v‡K bv| ZvB mvZ A‡cÿv Kg Kve©b wewkó A ̈vj‡Kb Av‡jvK mwμq nq bv| CH3 – CH2 – CH2 – H | C* – | CH3 CH2 – CH3 7 Kve©b wewkó Av‡jvK mwμq A ̈vj‡Kb 7. GKwU •Re †hŠ‡M `ywU Am`„k AcÖwZmg Kve©b Av‡Q| †hŠMwU KqwU mgvYy MVb K‡i? [e. †ev. 23] 4 3 2 1 DËi: 4 e ̈vL ̈v: Avgiv Rvwb, mgvYy msL ̈v = 2n = 22 = 4 GLv‡b, n = AcÖwZmg Kve©b cigvYy= 2 8. C5H12 ms‡KZ wewkó †hŠ‡Mi KZwU mgvYy m¤¢e? [wm. †ev. 23] 2 3 4 5 DËi: 3 e ̈vL ̈v: C5H12 Gi m¤¢ve ̈ mgvYy ̧‡jv wb¤œiƒc:  CH3 – CH2 – CH2 – CH2 – CH3 †c‡›Ub-1  CH3 – CH2 – CH | CH3 – CH3 2-wg_vBj weD‡Ub  CH3 – CH3 | C – | CH3 CH3 2, 2-WvBwg_vBj †cÖv‡cb 9. Av‡jvK mgvYyZv cÖ`k©b K‡i- [w`. †ev. 23] weDU-2-Aj 2-A ̈vwg‡bv †cÖv‡cb 2-†K¬v‡iv †cÖvcvb-2-Aj 3-nvBWaw· †cÖvcvb ̈vj DËi: weDU-2-Aj e ̈vL ̈v: weDU-2-Aj Gi KvBivj Kve©b i‡q‡Q weavq GwU Av‡jvK mgvYyZv cÖ`k©b K‡i| CH3 – OH | C * | H – CH2 – CH3 weDU -2- Aj 10. C3H6O ms‡KZ Øviv MwVZ m¤¢ve ̈ Kvh©Kix g~jK mgvYy n‡jv- i. A ̈vjwWnvBW ii. wK‡Uvb iii. Am¤ú„3 A ̈vj‡Kvnj wb‡Pi †KvbwU mwVK? [P. †ev. 23] i i, ii ii, iii i, ii, iii DËi: i, ii, iii e ̈vL ̈v: †hme •Re †hŠ‡Mi AvYweK ms‡K‡Z 1 wU Aw·‡Rb _v‡K Ges Aw·‡RbwU c„_K Ki‡j A ̈vjwKb cvIqv hvq, †mme †hŠ‡Mi mgvYyK †hŠMmg~n n‡e: A ̈vjwWnvBW, wK‡Uvb Ges Am¤ú„3 A ̈vj‡Kvnj (A ̈vjwKbj)| Zvn‡j, C3H6O Gi m¤¢ve ̈ mgvYy ̧‡jv n‡jv- A ̈vjwWnvBW: (i) 3 CH3 – 2 CH2 – 1 CHO †cÖvcvb ̈vj wK‡Uvb: (ii) CH3 – O || C – CH3 †cÖvcv‡bvb Am¤ú„3 A ̈vj‡Kvnj (A ̈vjwKbj): (iii) 3 CH3 – 2 CH = 1 CHOH †cÖvwcb-1-Aj (iv) CH3 – OH | C = CH2 †cÖvwcb-2-Aj
•Re imvqb  Final Revision Batch 3 11. wb‡Pi †KvbwU wK‡Uv-Bbj U‡UvgvwiZv cÖ`k©b K‡i? [h. †ev. 22] †cÖvcvbj-2 †cÖvcv‡bvb †cÖvcvbj †cÖvcvbwqK GwmW DËi: †cÖvcv‡bvb e ̈vL ̈v: GKB AvYweK ms‡KZ wewkó `ywU wfbœ Kvh©Kix g~jK wewkó †hŠ‡Mi g‡a ̈ MwZkxj mvg ̈ve ̄’vi m„wó nq, ZLb Zv‡`i‡K ci ̄ú‡ii U‡Uvgvi e‡j| C3H6O Gi `ywU U‡Uvgvi n‡jv- CH3 – O || C – H | CH2 CH3 – OH | C = CH2 †cÖvwcb-2-Aj (Bbj mgvYy) †cÖvcv‡bvb (wK‡UvmgvYy) GLv‡b, ÔwK‡Uv-BbjÕ U‡Uvgvi MwVZ nq| 12. C4H10O w`‡q MwVZ mKj mgvYyi g‡a ̈ †KvbwU Av‡jvK mgvYyZv cÖ`k©b Ki‡e? [P. †ev. 22] cÖvBgvix weDUvbj †m‡KÛvix weDUvbj Uviwkqvix weDUvbj weDUvb ̈vj DËi: †m‡KÛvix weDUvbj e ̈vL ̈v: C4H10O Gi MVb CxH2x + 2O Gi mv‡_ mv`„k ̈c~Y© nIqvq Gi mgvYy ̧‡jv mvaviYZ A ̈vj‡Kvnj I B_vi n‡q _v‡K| m¤¢ve ̈ mgvYy mg~n: CH3 – CH3 | C – | CH3 OH Uviwkqvix weDUvbj CH3 – CH2 – CH3 | C * – | OH H CH3 – CH2 – CH2 – CH2 – OH †m‡KÛvix weDUvbj cÖvBgvix weDUvbj G‡`i g‡a ̈ †m‡KÛvix weDUvbj G GKwU KvBivj Kve©b _vKvq GwU Av‡jvK mgvYyZv cÖ`k©b Ki‡e| 13. CH3 – CH3 | CH – CH = CH – CH3 Gi IUPAC bvgKiY wb‡Pi †KvbwU? [P. †ev. 22] 4-wg_vBj †c›U-2-Bb 2-wg_vBj †c›U-3-Bb 2-wg_vBj †cw›Ub 4-wg_vBj †cw›Ub DËi: 4-wg_vBj †c›U-2-Bb e ̈vL ̈v: 5 CH3 – CH3 4| CH – 3 CH = 2 CH – 1 CH3 4-wg_vBj †c›U-2- Bb 14. wb‡Pi †KvbwU †g‡mv †hŠM? [e. †ev. 22] CH3(CH)OHCH(OH)COOH CH3CH(OH)CH(Cl)CH3 CH3CH(OH)CH(OH)CH3 CH3 – CH2CH(OH)CH3 DËi: CH3(CH)OHCH(OH)COOH e ̈vL ̈v: †g‡mv †hŠM: †Kvb c`v‡_©i AYyi `y-As‡ki MV‡bi AbyiƒcZvi Kvi‡Y GKvsk Acivs‡ki ADcwi ̄’vbxq cÖwZwe‡¤^i gZ AvPiY Ki‡j GKvsk KZ...©K Zj mgvewZ©Z Av‡jvi Z‡ji AveZ©b gvÎv Aci As‡ki AveZ©b gvÎv‡K cÖkwgZ K‡i †`q| d‡j G ai‡bi AYy Av‡jvK wbw ̄Œq nq| G‡K †g‡mv †hŠM ejv nq| †g‡mv †hŠ‡Mi AYy ̄’ AskØq‡K ci ̄úi †_‡K c„_K Kiv hvq bv| UviUvwiK GwmW GKwU †g‡mv †hŠM| OH – COOH | C – H | (UviUvwiK GwmW) OH – C – H | COOH 15. wb‡Pi †Kvb †hŠMwU Optical Isomerism †`Lvq? [e. †ev. 22; Xv. †ev. 21] CH2(NH2)COOH CH3CH(NH2)COOH (CH3)2C = CHCl CH3CH2COOH DËi: CH3CH(NH2)COOH e ̈vL ̈v: H2N – CH(CH3) – COOH-Gi AvYweK ms‡KZ: H2N – CH3 | C * – H | COOH KvBivj Kve©b we` ̈gvb| ZvB GB †hŠMwU Optical Isomerism †`Lvq| 16. †Kvb mgvYyZv Avcbv Avcwb NU‡Z cv‡i? [Kz. †ev. 22; g. †ev. 22] Ae ̄’vb mgvYyZv MvVwbK mgvYyZv †gUvgvwiRg U‡UvgvwiRg DËi: U‡UvgvwiRg e ̈vL ̈v: GK we‡kl ai‡bi MwZkxj Kvh©Kixg~jK mgvYyZvi bvg U‡UvgvwiRg| hw` GKwU Kvh©Kix g~jK msewjZ KvVv‡gv †_‡K ̄^Ztù~Z©fv‡e wfbœ Kvh©Kix g~jK hy3 KvVv‡gvi †hŠ‡M iƒcvšÍi N‡U Ges Dfq KvVv‡gvi g‡a ̈ GKwU MwZkxj mvg ̈ve ̄’vi m„wó nq Z‡e G ai‡bi mgvYyZv‡K U‡UvgvwiRg e‡j| U‡UvgvwiRg MwZkxj Kvh©Kix g~jK mgvYy nIqvq GwU Avcbv Avcwb N‡U _v‡K| 17. wb‡Pi †Kvb †hŠ‡M ÔbvBUavBjÕ Kvh©Kix g~jKwU we` ̈gvb? [mw¤§wjZ †evW©-18] CH3NH2 CCl3NO2 CH3CN NH4CNO DËi: CH3CN e ̈vL ̈v: CH3CN †hŠ‡M ÔbvBUavBjÕ Kvh©Kix g~jKwU we` ̈gvb| bvBUavBj Kvh©Kix g~j‡Ki ms‡KZ n‡jv- – CN| 18. A ̈vgvB‡Wi Kvh©Kix g~jK n‡jv- [wm. †ev. 22] – CONH2 – COX – CHO – NH2 DËi: – CONH2
4  Chemistry 2 nd Paper Chapter-2 19. weDU-2-Bb cÖ`k©b K‡i †KvbwU? [w`. †ev. 22] U‡UvgvwiRg Kvh©Kixg~jK mgvYyZv Av‡jvK mgvYyZv R ̈vwgwZK mgvYyZv DËi: R ̈vwgwZK mgvYyZv e ̈vL ̈v: R ̈vwgwZK mgvYyZvi kZ©: (i) Kve©b-Kve©b e܇bi gy3 N~Y©b iwnZ n‡Z n‡e| (ii) wØ-eÜb hy3 A_ev PvwμK †hŠM n‡Z n‡e| (iii) a C = C a b b AYy‡Z a  b n‡Z n‡e| CH3CH = CHCH3 Gi MvVwbK ms‡KZ: H C = C CH3 H CH3 †hLv‡b, Kve©b-Kve©b wØeÜb we` ̈gvb Ges (a  b) A_©vr, CH3CH = CHCH3 †hŠMwU R ̈vwgwZK mgvYyZv cÖ`k©b Ki‡e| 20. CH3 – CH = C(CH3) – CH2OH †hŠMwUi IUPAC bvg Kx? [w`. †ev. 22] 2-wg_vBj weDU-2-Bb-1-Aj 2-wg_vBj-2-weDwUbj A ̈vjvBj A ̈vj‡Kvnj wg_vBj-2-weDwUb-1-Aj DËi: 2-wg_vBj weDU-2-Bb-1-Aj e ̈vL ̈v: 4 CH3 – 3 CH = CH3 |2 C– 1 CH2OH 2-wg_vBj weDU-2-Bb-1-Aj 21. – CN g~j‡Ki bvg- [iv. †ev. 22] (i) mvqvbvBW g~jK (ii) bvBUavBj g~jK (iii) bvB‡Uav g~jK wb‡Pi †KvbwU mwVK? i I ii i I iii ii I iii i, ii I iii DËi: i I ii e ̈vL ̈v: – CN n‡jv mvqvbvBW Ges bvBUavBj g~j‡Ki ms‡KZ| 22. C4H10O ms‡KZ wewkó †hŠ‡Mi †ÿ‡Î- [wm. †ev. 22] (i) mgvYyi msL ̈v 5 (ii) GKwU mgvYy Av‡jvK mwμq (iii) GKwU mgvYy 3 A ̈vj‡Kvnj wb‡Pi †KvbwU mwVK? i I ii i I iii ii I iii i, ii I iii DËi: ii I iii e ̈vL ̈v: C4H10O –Gi m¤¢ve ̈ mgvYymg~n (i) CH3 – CH2 – CH2 – CH2 – OH n weDUvbj (ii) CH3 – *CH | OH – CH2 – CH3 weDU-2-Aj [Av‡jvK mgvYyZv cÖ`k©b Ki‡e] (iii) CH3 – CH | CH3 – CH2 | OH 2-wg_vBj †cÖvcvbj (iv) CH3 – OH | CH | CH3 – CH3 2-wg_vBj †cÖvcvb-2-Aj [3 A ̈vj‡Kvnj] (v) CH3 – CH2 – O – CH2 – CH3 WvB B_vBj B_vi (vi) CH3 – O – CH2 – CH2 – CH3 1- wg‡_vw· †cÖv‡cb (vii) CH3 – O – CH CH3 CH3 2-wg‡_vw· †cÖv‡cb myZivs, †gvU mgvYy 7wU 23. CH3 – CH(OH) – CH2 – CH2 – COOH †hŠ‡Mi IUPAC wbq‡g bvgKiY †KvbwU mwVK? [iv. †ev. 21] 2-nvB‡Wavw· †c›UvbwqK GwmW 4-nvB‡Wavw· †c›UvbwqK GwmW 5- Kve©w·j †c›Uvbj-2 1-Kve©w·j †c›Uvbj-4 DËi: 4-nvB‡Wvw· †c›UvbwqK GwmW e ̈vL ̈v: 5 CH3 – OH |4 CH – 3 CH2 – 2 CH2 – 1 COOH IUPAC-bvg: 4- nvB‡Wavw· †c›UvbwqK GwmW 24. n-†c‡›U‡bi mgvYy msL ̈v KZwU? [iv. †ev. 21] 3 4 5 6 DËi: 3 e ̈vL ̈v: n-†c‡›Ub Gi mgvYy 3wU| 1. CH3 – CH2 – CH2 – CH2 – CH3 n- †c‡›Ub 2. 1 CH3 – CH3 | CH 2 – – 3 CH2 – 4 CH3 2-wg_vBj weD‡Ub 3. H3C – CH3 | C – | CH3 CH3 neo- †c‡›Ub ev, 2, 2 WvBwg_vBj †c‡›Ub