Title Chemistry গুনগত রসায়ন ✅

2  Chemistry 1st Paper Chapter-2 10.  KYv we‡ÿcY cixÿvq iv`vi‡dvW© wb‡¤œi †KvbwU e ̈envi K‡ibwb? [h. †ev. 23] 4 2He2+ ̄^‡Y©i cvZ ZnS Gi AveiYhy3 c`v© 1 0 n 11. †evi g‡Wj wb‡Pi †Kvb †g.j ev Avq‡bi eY©vwj e ̈vL ̈v Ki‡Z cv‡i? [P. †ev. 23] He H – H + Be3+ 12. †evi cigvYy g‡Wj wb‡Pi †KvbwUi †ÿ‡Î cÖ‡hvR ̈? [e. †ev. 23; Xv. †ev. 22] H + He2+ Li3+ He+ 13. iv`vi‡dv‡W©i Avjdv KYv we”QziY cixÿvi ̄^Y©cv‡Zi cyiæZ¡ KZ wQj? [iv. †ev. 22] 0.000004 m 0.0004 cm 0.0004 mm 0.004 cm 14. cø ̈v1⁄4 aaæe‡Ki gvb KZ? [Kz. †ev. 22] 6.23 × 1023 J s 6.23 × 10–23 J s 6.624 × 1034 J s 6.624 × 10–34 J s 15. H cigvYyi 4_© Kÿc‡_i e ̈vmva© 7.5 × 10–10 m n‡j, H K‡ÿ B‡jKUabwUi MwZ‡eM KZ? [B‡jKUa‡bi fi = 9.1 × 10–31 Kg] [Kz. †ev. 22] 4.5982 × 105 ms–1 5.9482 × 105 ms–1 6.1805 × 105 ms–1 7.4805 × 105 ms–1 16. iv`vi‡dv‡W©i wbDwK¬qvm Avwe®..vi cixÿvq 99% Avjdv () KYv ̄^Y©cvZ †f` K‡i †mvRv P‡j hvq †Kb? [P. †ev. 22] cigvYyi †K›`a abvZ¥K PvR©hy3 e‡j Avjdv KYvi MwZkw3 †ewk e‡j Avjdv KYvi cÖwZdwjZ nIqvi ÿgZv Kg cigvYyi AwaKvsk ̄’vbB dvuKv 17. ̄^vfvweK Ae ̄’vq nvB‡Wav‡Rb cigvYyi AveZ©bkxj B‡jKUa‡bi †K.wYK fi‡eM KZ? [e. †ev. 22] 1.05 × 10–34 J s 2.11 × 10–34 J s 3.16 × 10–34 J s 4.22 × 10–34 J s 18. iv`vi‡dvW© Zvi cixÿvq †Kvb c`v‡_©i cÖ‡jchy3 c`©v e ̈envi K‡ib? [e. †ev. 22] wRsK mjdvBU wRsK mvj‡dU wRsK mvjdvBW wRsK dm‡dU 19. †Kvb weÁvbxi g‡Z AveZ©bkxj B‡j±ab μgvMZ kw3 wewKiY K‡i? [e. †ev. 22] nvB‡Rb evM© AvBb÷vBb g ̈v· cøvsK g ̈v·I‡qj 20. †Kvb cigvYy g‡Wj Kÿc_ m¤ú‡K© aviYv †`q? [w`. †ev. 22] iv`vi‡dvW© _gmb Wvëb †evi 21. †KvbwUi Rb ̈ †evi g‡Wj cÖ‡hvR ̈? [g. †ev. 22] H + H He Li+ 22. †evi‡bi †kl B‡jKUa‡bi †K.wYK fi‡eM KZ? [g. †ev. 22; Xv. †ev. 21] h 2 2h  n 2 h  23. †evi cigvYy g‡Wj e ̈vL ̈v Ki‡Z cv‡iÑ [e. †ev. 22] (i) cigvYyi Zwor wbi‡cÿZv (ii) cvigvYweK eY©vwj (iii) Kÿc‡_i AvKvi wb‡Pi †KvbwU mwVK? i I ii ii I iii i I iii i, ii I iii 24. †Kvb KYvi mvnv‡h ̈ iv`vi‡dvW© we”QziY cixÿv K‡ib? [Xv. †ev. 21]    X-ray 25. ÒcigvYyi wbDwK¬qvm abvZ¥K Avavbhy3ÓÑ †Kvb weÁvbx cÖgvY K‡ib? [iv. †ev. 21] iv`vi‡dvW© †evi wW-eaMwj †R. †R. _gmb 26. -KYvi •ewkó ̈ †KvbwU? [Kz. †ev. 21] G‡Z `ywU †cÖvUb I `ywU B‡jKUab Av‡Q GUv Lye axiMwZm¤úbœ KYv Bnv abvZ¥K PvwR©Z KYv Gi fimsL ̈v 2 27. †m.i g‡Wj †KvbwU? [P. †ev. 21] iv`vi‡dvW© cigvYy g‡Wj †evi cigvYy g‡Wj _gmb cigvYy g‡Wj Wvëb cigvYy g‡Wj
̧YMZ imvqb  Final Revision Batch 3 28. †KvbwU -KYv? [Kz. †ev. 19] GKwU wbDUab I GKwU †cÖvUb `ywU wbDUab I `ywU †cÖvUb GKwU wbDUab I `ywU †cÖvUb `ywU wbDUab I GKwU †cÖvUb †Kvqv›Uvg msL ̈v, AiweU I AiweUvj 29. Cr cigvYyi me©ewnt ̄’ ͇̄ii B‡jKUa‡bi Rb ̈ †Kvqv›Uvg msL ̈vi †mU †KvbwU? [iv. †ev. 23] n = 4, l = 0, m = 0, s = – 1 2 n = 3, l = 0, m = 0, s = – 1 2 n = 3, l = 2, m = – 2, s = – 1 2 n = 4, l = 2, m = 2, s = – 1 2 30. Cu Gi 29 Zg B‡jKUabwU †Kvb AiweUv‡j cÖ‡ek K‡i? [Kz. †ev. 23] 3s 4s 3d 4p 31. K ̈vjwmqv‡gi me©ewnt ̄’ ͇̄ii B‡jKUab؇qi †Kvqv›Uvg msL ̈vi †mU †KvbwU? [Kz. †ev. 23] n = 4, l = 0, m = 0, s = + 1 2 , – 1 2 n = 3, l = 1, m = 0, s = + 1 2 , + 1 2 n = 4, l = 1, m = 0, s = + 1 2 , – 1 2 n = 4, l = 2, m = 0, s = + 1 2 , – 1 2 32. 28Ni Gi KZ ̧‡jv B‡jKUa‡bi †ÿ‡Î (n + l) = 4 nq- (GLv‡b, l = 1) [Kz. †ev. 23] 4 5 6 7 33. cigvYyi Dckw3 ͇̄i B‡jKUab aviY ÿgZv wbY©‡qi m~Î †KvbwU? [P. †ev. 23] 2n2 2l + 1 2(l + 1) 2(2l + 1) 34. 4_© kw3 ͇̄i †gvU AiweUvj msL ̈v KqwU? [P. †ev. 23] 4 9 16 32 35. cigvYyi 3q kw3 ͇̄ii Rb ̈ ÔmÕ Gi gvb KZwU? [wm. †ev. 23] 3 4 6 9 36. 3d AiweUv‡ji Rb ̈ mnKvix †Kvqv›Uvg msL ̈vi gvb KZ? [w`. †ev. 23] 0 1 2 3 37. wb‡Pi †Kvb †Kvqv›Uvg msL ̈vi †mUwU MÖnY‡hvM ̈? [w`. †ev. 23] n = 1, l = 0, m = 0 n = 2, l = 1, m = – 2 n = 3, l = 1, m = + 2 n = 3, l = 2, m = – 3 38. 19K Gi me©‡kl kw3 ͇̄ii B‡jKUa‡bi Rb ̈ †Kvb †mUwU mwVK? [g. †ev. 23; w`. †ev. 22] n = 3, l = 2, m = – 2, s = – 1 2 n = 3, l = 1, m = 0, s = + 1 2 n = 4, l = 0, m = 0, s = + 1 2 n = 3, l = 2, m = + 2, s = – 1 2 39. B‡jKUab Øviv c~Y© nIqvi Rb ̈ AiweUv‡ji †Kvb μgwU mwVK? [Xv. †ev. 23] 4s > 3p > 4p > 5s 4s > 3d > 4p > 5s 4s > 3d > 5p > 4d 5s > 4p > 5p > 4d 40. D”P kw3i AiweUvj wb‡Pi †KvbwU? [P. †ev. 23] 3d 4f 5p 6s 41. †Kv‡bv cigvYyi PZz_© kw3 ͇̄i KZwU Dckw3 ̄Íi _v‡K? [Xv. †ev. 22] 2 3 4 5 42. f AiweUv‡ji Rb ̈ l Gi gvb KZ? [Xv. †ev. 22] 2 3 4 5 43. †Kvqv›Uvg msL ̈vi gvb n = 4 Ges l = 3 n‡j AiweUvjwU n‡eÑ [iv. †ev. 22; h. †ev. 22] 4s 4p 4d 4f 44. 3d AiweUv‡ji c‡i †KvbwU‡Z B‡jKUab cÖ‡ek Ki‡e? [Kz. †ev. 22] 4p 4d 4s 5s
4  Chemistry 1st Paper Chapter-2 45. 4p AiweUv‡ji Rb ̈ mnKvix †Kvqv›Uvg msL ̈vi gvb KZ? [Kz. †ev. 22] 0 1 2 3 46. †P.¤^K †Kvqv›Uvg msL ̈v Øviv Kx cvIqv hvq? [h. †ev. 22] cÖavb kw3 ̄Íi Dckw3 ̄Íi AiweUvj B‡jKUa‡bi N~Y©‡bi w`K 47. †h †Kv‡bv AiweUv‡j m‡e©v”P aviYK...Z B‡j±ab msL ̈v KZwU? [e. †ev. 22] 2n2 (2l + 1) 2(2l + 1) 2(2n + 1) 48. †Kvqv›Uvg msL ̈vi gv‡bi †Kvb †mUwU Aev ̄Íe? [wm. †ev. 22] 3, 2, – 2, + 1 2 4, 0, 0, + 1 2 3, 2, – 3, + 1 2 5, 3, 0, – 1 2 49. cigvYy‡Z AiweUv‡ji aviYv cvIqv hvq †Kvb Drm †_‡K? [wm. †ev. 22; Xv. †ev. 21] †evi g‡Wj iv`vi‡dvW© g‡Wj †Kvqv›Uvg ZË¡ AvDdevD bxwZ 50. 3d AiweUv‡ji Rb ̈ m Gi gvb †Kvb †mU n‡e? [g. †ev. 22] 0 – 1, 0, + 1 – 2, – 1, 0, + 1, + 2 – 3, – 2, – 1, 0, + 1, + 2, + 3 51. p Dc ͇̄ii Rb ̈Ñ [g. †ev. 22] (i) l = 1 (ii) m = – 1, 0, + 1 (iii) AiweUvj msL ̈v 2 wb‡Pi †KvbwU mwVK? i I ii ii I iii i I iii i, ii I iii 52. †KvbwU AvK...wZ cÖKvk K‡i? [Xv. †ev. 21] cÖavb †Kvqv›Uvg msL ̈v †PŠ¤^K †Kvqv›Uvg msL ̈v mnKvix †Kvqv›Uvg msL ̈v N~Y©b †Kvqv›Uvg msL ̈v 53. †Kvb AiweUvjwU m¤¢e? [Xv. †ev. 21] 5s 3f 2d 1p 54. †KvbwU‡Z B‡jKUab Av‡M cÖek Ki‡e? [Xv. †ev. 21] 6p 5d 4f 7s 55. 4f AiweUv‡ji (n + l) Gi gvb KZ? [iv. †ev. 21] 4 6 7 11 56. †Kv‡bv B‡jKUa‡bi Rb ̈ †Kvqv›Uvg msL ̈vi †Kvb †mUwU MÖnY‡hvM ̈? [Kz. †ev. 21]     1 1 1 + 1 2     2 0 1 + 1 2     4 2 – 1 – 1 2     3 1 – 2 – 1 2 57. 28Ni-Gi KZ ̧‡jv B‡jKUa‡bi †ÿ‡Î (n + l) = 4 nq? [Xv. †ev. 19] 3 6 7 8 58. GKwU cigvYy‡Z `ywU B‡jKUa‡bi m‡e©v”P KqwU †Kvqv›Uvg msL ̈vi gvb GKB n‡Z cv‡i? [Kz. †ev. 19] 1 2 3 4 59. cÂg kw3 ͇̄i †gvU AiweUvj KZwU? [P. †ev. 19] 5wU 9wU 16wU 25wU B‡jKUab web ̈vm I Gi wbqgmg~n 60. wb‡Pi †KvbwU AvDdevD bxwZi weKí iƒc? [Xv. †ev. 23] 2n2 wbqg 2l + 1 wbqg n + l wbqg 2(2l + 1) wbqg 61. û‡Ûi bxwZ †KvbwUi †ÿ‡Î cÖ‡hvR ̈ bq? [h. †ev. 23; iv. †ev. 21] s p d f 62. wb‡Pi †Kvb bxwZ Abymv‡i AhyM¥ B‡jKUabmg~‡ni w ̄úb GKBgyLx n‡e? [h. †ev. 23] cwji eR©b bxwZ û‡Ûi bxwZ AvDdevD bxwZ dvhv‡bi bxwZ 63. wfbœ wfbœ kw3i Dckw3 ͇̄i B‡jKUab ̧‡jv cÖ‡e‡ki †ÿ‡Î †Kvb bxwZ AbymiY K‡i? [e. †ev. 23] AvDdevD bxwZ û‡Ûi bxwZ cvDwji eR©b bxwZ nvB‡Rbev‡M©i AwbðqZv bxwZ