Title তড়িৎ রসায়ন -MCQ-Practice-Sheet_Without-Solve.pdf ✅

Zwor imvqb  Varsity Practice Sheet 3 44. Zwor we‡køl‡Yi mgq GKm‡1⁄2 GKvwaK Avqb _vK‡j wb‡Pi †Kvb AvqbwU Av‡M PvR©gy3 n‡e? [JU 12-13] NO– 3 SO 2– 4 Br– Cl – 45. KNO3 Gi Rjxq `aeY‡K Zwor we‡kølY Ki‡j K ̈v‡_v‡W †KvbwU e ̄‘ Drcbœ nq? [JU 11-12] K H2 NO2– 3 O2 46. †Kvb wewμqvwU NU‡e bv? [RU-C 22-23] 2Ag+ (aq) + Ni(s)  Ni2+(aq) + 2Ag(s) 2H + (aq) + Mg(s)  Mg2+(aq) + H2(g) Pb(s) + 2Ag+ (aq)  Pb2+(aq) + 2Ag(s) Sn(s) + 2Ni2+(aq)  Sn2+(aq) + 2Ni(s) 47. wb‡¤œv3 †Kvb wewμqvwU mwVK bq- [RU 19-20] MnO2 + 4HCl  MnCl2 + Cl2 + 2H2O 8NH3 + 3Cl2  6NH3Cl + N2 2NaOH + Cl2  2NaCl + H2 + O2 2Ca(OH)2 + 2Cl2  Ca(OH)2 + CaCl2 + 2H2O 48. wb‡¤œi avZz ̧wji g‡a ̈ †KvbwU Rjxq wmjfvi bvB‡UaU-G Wzev‡j Gi c„ôZ‡j wmjfvi Rgv n‡e bv? [RU 19-20] Cu Fe Pt Zn 49. †KvbwUi cÖgvY weRviY wefe me‡P‡q †ewk- [RU-H 17-18] Ca Mg Zn Pb 50. Hg2+/Hg(g), Pt I Sn2+/Sn(s), Pt B‡jK‡UavWØq Øviv ZworØvi MVb Ki‡j A ̈v‡bvW wnmv‡e KvR K‡i- [IU 16-17] Hg Pt Sn †Kv‡bvwUB bq 51. †KvbwU me‡P‡q Kg mwμq avZz? [IU 15-16] Al Mg Ag Fe 52. Zwor we‡kølYKv‡j †K Av‡M PvR©gy3 n‡e- [HSTU 17-18] OH– NO3 – Br– Cl – 53. cvwb †_‡K H2 †K me‡P‡q Av‡M cÖwZ ̄’vcb Ki‡Z cv‡i wb‡Pi †KvbwU? [BSMRSTU 16-17; JU 14-15] Mn Fe Ba Co 54. Kcvi mvj‡d‡Ui Rjxq `ae‡Yi B‡jK‡Uav we‡kølY m¤ú‡K© wb‡Pi †Kvb Dw3wU fyj? [SUST 08-09] cøvwUbvg Øviv •Zwi A ̈v‡bv‡W Aw·‡Rb Drcbœ nq Kcvi A ̈v‡bvW e ̈eüZ n‡j `ae‡Yi eY© nvjKv nq B‡jK‡Uav we‡køl‡Yi d‡j K ̈v‡_v‡W fi e„w× cvq cøvwUbvg Øviv •Zwi K ̈v‡_vW-G Aw·‡Rb Drcbœ nq 55. KwZcq cÖgvY ZworØvi wefe n‡jvÑ K + |K = –2.93V; Ag+ |Ag = 0.80V; Hg+ |Hg = 0.79V; Mg2+|Mg = – 2.37V; Cr3+|Cr = – 0.74 V DcvËmg~‡n cÖ`Ë avZzmg~‡ni weRviY ÿgZvi D”Pμg Abymv‡i mvRvI| [KUET 18-19] K + |K < Mg2+|Mg < Cr3+|Cr < Hg2+|Hg < Ag+ |Ag Ag+ |Ag < Hg2+|Hg < Cr3+|Cr < K + |K < Mg2+|Mg Ag < Hg < Cr < Mg < K K < Mg < Cr < Hg < As K + |K < Ag+ |Ag < Mg2+|Mg < Hg2+|Hg < Cr3+|Cr 56. wb‡Pi mwμqZv wmwi‡Ri †KvbwU mwVK? [KUET 11-12] Al > C > Cr > Co > Mn Cd > Co > Sn > Hg > Pb Mn > Zn > Fe > Cd > Cr Cu > Hg > Ag > Pt > Au L > Na > Al > Ca > Mg 57. wRsK mvj‡d‡Ui `ae‡Y †KvbwU †hvM Ki‡j KwVb wRsK cvIqv hv‡e? [BUTex 16-17] Al(s) Cu(s) Fe(s) Sn(s) Zwor we‡køl ̈ †Kvl 58. NaCl Gi mv‡_ H2O †hvM Ki‡j †KvbwU N‡U? [DU 20-21, 15-16] Na+ (aq) + Cl – (aq) NaOH(aq) + HCl(aq) OH+ (aq) + Cl – (aq) Na+ + Cl – 59. Kcvi A ̈v‡bvW e ̈envi K‡i Kcvi mvj‡dU Gi Rjxq `aeY Zwor we‡kølY Kiv n‡j A ̈v‡bv‡W †h wewμqv N‡U- [DU 09-10] Cu2+(aq) + 2e–  Cu(s) Cu(s)Cu2+(aq) +2e– 1 2 H2(g)  H + (aq) + e– 4OH– (aq)  2H2O(l) + O2(g) + 4e– 60. NaCl Gi Rjxq `ae‡Yi Zwor we‡køl‡Y †KvbwU Drcbœ nq bv? [DU 15-16] Na Cl2 H2 NaOH