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JEE MAIN 2021 (Percentile Scores)

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SUHANI AGRAWAL(4 Yr. Class Room)

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DIPENDRA KUMAR(NIT, Raipur)

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Sujoy Banerjee(NIT, Raipur)

Aastha Gupta(DU, Delhi)

CHETAN PATELPt. J N M Medical College, Raipur

NEERAJ GHRITLAHREYCIMS, BILASPUR

OTHER ACHIEVERS

TRIPTI S DASANI(BMS, Bangalore)

SANJIVANI KAUSHIK(HNLU, Raipur)

SHIWANI SRIWAS(HNLU, Raipur)

AKSHDA JOSHI(Ramdev College, NGP)

PRANJAL GADHGE(IHM, Chennai)

ANKITA SINGH(GEC, Bilaspur)

NIYATI HARIHARNO(GEC, Bilaspur)

MBBS MBBS

99.74 98.93 96.55

JEE MAIN NEET

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Ii 12203/UE - ET/ENT -: MIT

59. A dibasic acid containing C, H and Owas round to contain C = 26. 7% andH = 2.2%. The vapour density of diethylester was found to be 73. What is themolecular formula of the acid ?

59. ��'l,fl:lcfi��c. Hi:rcioi, �.C=26.7%�H=2.2%tflmllm � T{

i,�v;ftic:1 l� <fiT � � 73 �I

(A) CH2O2

�C2H

I (C) C3H

3O, \.I\

� (D) C4H,O,

60. For the molecular formula C5H

10 60.

possible structural isomers are

/(A) 6

(B) 3�1)\\'->J(C) 4

(D) 5 �

61. For the reaction, 61. N

2 + 3H

2 � 2NH

3 + heat

\;j (A) KP= Kc

"' (B) KP= Kc(RT)-1

{� KP= Kc(RT)-2

(D) KP= Kc.RT

<fiT � � t ?

(A) CH2O

(B) C2H

(C) C3H

(D) C,H,O,

\,-' l. I Vr . " /

� C H c); � � er�-11cq..,5 10

eq1q��

(0) 5�.., ,-. ,. ...

� N2

� 2NH3

t � c);�

(A) KP= Kc

(B) K,._ = Kc(RT)-,

(C) KP = Kc(RT)-2

(D) KP= Kc.RT

TCl'Sffl$��Space for Rough Work .i

, c·�

S.t•A

� -I . -��

89. Poly01erization reaction is initiated

C,i o � 'l <t:

by strong bases or C,Hgli or Grignardre�gent known as

(A) Free radical polymerization

(8) Step gr_?wth addition polymerization

(C) Cationic addition polymerization

,/' Anionic addition polymerization

90. Synthetic rubber that can be preparedby polymerising ethylene chloride andsodium polysulphide is known as

(A) Buna-S

I v-fB) Thiokol

(C) Buna-N

(D) Neoprene

91. Catalyst increases rate of reactionbecause

(A) It decreases 6H

j (8) It increases 6H

�It decreases activatio� energy

(D) It increases activation energy

12203/UE - ET/ENT- M

89. ot§cilcfico, h� 'Sfi@ lffl< m C,HgLI,mfwmt�mtmmcTTt, ;;ir-TT'>ITffit

(A) � � c1�(-fi<6(01 {TU 0

(8) �!ml�(�) il'§�<OTIDU.JI

(C) lHl4�cfi � ◄§cilcfi<OJ {rd•

90. �➔ <M"'m� � � qicilttt"'4'11�-s� il�cilcfi(OI li � ij�cl�cfi � ��i . ·�·

(A) �-S fflT

(B) m4Tcfi@ fflT

( C} -4:IT-N "G:TU

(D) f.ttm#R UU

91. ��<t';lm:�t�

(8) �6H�t

;;a, -.,.,� . (C) 1(g {ifii4cfiit'l � tlc@1 t

(D) � �Jii4cfiit'l � � t

��fm!� Sp�ce for Rough Work

-36- Set-A