Title 2. FRB Che. With Solve 04-05-2024.pdf.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