Page 24 - chemistry exclusive short suggestion

imvqb G·K¬zwmf mv‡Rkb
 cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW +* cøvRwgW +*
 cøvRwgW + * cøvRwgW +* cøvRwgW * cøvRwgW + cøvRwgW + cøvRwgW  cøvRwgW + cøvRwgW +cøvRwgW + cøvRwgW +  cøvRwgW  cøvRwgW + cøvRwgW  +  cøvRwgW +* cøvRwgW + cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW + cøvRwgW + cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW + * cøvRwgW +*
 cøvRwgW + * cøvRwgW +* cøvRwgW + * cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW +cøvRwgW + cøvRwgW +  cøvRwgW  cøvRwgW + cøvRwgW +  cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW + cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +

65. ch©vq mviYx‡Z †KvbwU AwaK Zwor FYvZ¥K? 73. HSO   H O  H O   SO wewµqvwUi
2
Ans: (L) 4  2 3 4
4
(K) †K¬vwib (L) †d¬vwib HSO Gi mn‡hvMx/AbyeÜx ¶vi †KvbwU?
(M) Aw·‡Rb (N) Av‡qvwWb Ans: (N)
+
(K) H 2O (L) H 3O
66. R wbw¯…q †g․‡ji B‡j±ªb web¨v‡mi †¶‡Î wb‡Pi †KvbwU
n + 2 
mwVK? Ans: (K) (M) H (N) SO
4
2
6
6
2
(K) 6s 6p (L) 5s 5p 74. ‡gvjvi M¨vm aªæe‡Ki mwVK GKK †KvbwU?
2
2
6
6
(M) 4s 4p (N) 3s 3p Ans: (O)
-1
-1
-1
-1

6
67. mgy‡`ªi cvwb OH NbgvÎv 58.1  10 n‡j Gi pH (K) L.atm mol K (L) J mol. K
-1
(M) erg.mol.K (N) Cal.mol K
KZ? Ans: (L)
-1
-1
(O) L.atm.mol K
(K) 11.28 (L) 8.20 75. h‡kv‡ii KZ kZvOk f-Mf©¯
cvwb‡Z Av‡m©wbK `~lYgvÎv
~
(M) 7.00 (N) 5.30 50 mgL Gi †ewk? Ans: (M)

1
10  14
e¨vL¨v:    . 6 329 10  9 M (K) 96% (L) 66%

H
. 1 58 10  6 (M) 51% (N) 49%
-9
pH=-log (6.32910 ) = 8.20 76. cvwbi weï×Zv cwigv‡ci gvb`Û-bq †KvbwU?
68. wb‡Pi †Kvb n¨v‡jv GwmW Gi A¤øZ¡ †ewk? Ans: (N)
Ans: (L) (K) TDS (L) DO
(K) HF (L) Hl
(M) BOD (N) pH
(M) HCl (N) HBr 77. wb‡gœi †Kvb †h․M‡K IRb we‡kølY K‡i †cÖvcv‡bvbmn Ab¨
e¨vL¨v: n¨v‡jv‡R‡bi AvKvi e„w×i mv‡_ mv‡_ n¨v‡jv Gwm‡Wi ZxeªZv
GKwU †h․M cvIqv hvq? Ans: (L)
ev A¤øZ¡ e„w× cvq|
(K) CH 3-CH-CH-CH(CH 3) 2
69. 0.005M H 2SO 4 `ªe‡Yi pH KZ?
(L) CH 3-CH 2-CH=C(CH 3) 2  cøvRwgW + * cøvRwgW +* cøvRwgW + * cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW +cøvRwgW + cøvRwgW +  cøvRwgW  cøvRwgW + cøvRwgW +  cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW + cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW + * cøvRwgW +*
Ans: (L) (M) C 2H 5(CH 3)C=CH-CH 3
(K) 5.0 (L) 2.0 (N) (CH 3) 2 C = C(CH 3) 2
(M) 1.0 (N) 3.0 78. Rjxq `ªe‡Y Møy‡KvR `ªwef~Z n‡j Zv‡Z KqwU AcÖwZmg Kve©b
e¨vL¨v: pH = -log (0.0052)=2 _v‡K? Ans: (N)
70. GKwU wØZxq µg wewµqvi Aa©vqyKvj t 1 2  Ges (K) 2 (L) 3
wewµq‡Ki NbgvÎv C( ) Gi ga¨Kvi m¤úK©wU nj- (M) 5 (N) 4
(O) 6
Ans: (N) 79. ‡Kvb †h․MwUi ùzUbv¼ m‡e©v”P?
2
(K) t 1 2 = aªæe (L) t  C Ans: (K)
2
1
2
(M) t 1 2  / 1 C (N) t  / 1 C (K) n -A‡±vb
2
1
(L) 2,2,4 UªvBwg_vBj †c‡›Ub
71. ‡d«qb-12 Gi ms‡KZ †KvbwU?
(M) 2,2,3,3--‡UªUªvwg_vBj weD‡Ub
Ans: (N)
(K) CF 3Cl (L) CCl 3F (N) 3, 3-WvBwg_vBj †n‡·b
0
e¨vL¨v: n = octane = 125 C Avi Ab¨ me¸‡jvi ùzUbv¼ n‡e
(M) F 2CCl-CClF 2 (N) CCl 2F 2
72. ‡KvbwU Lv`¨ msi¶K bq? Ans: (L) n – octane ‡_‡K Kg KviY b,c,d n‡jv n-octane Gi
(K) wPwb (L) digvwjb kLvwš^Z mgvYy |
(M) wf‡bMvi (N) jeY 80. CH  CHO Ges CH  CH  CHO Gi
3
3
2
g‡a¨ G¨vjWj Nbxfeb wewµqv n‡j †gvU KZ cÖKvi wfbœ wfbœ
G¨vjWj •Zwi n‡e? Ans: (L)
(K) 1 (L) 2
(M) 4 (N) 3
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