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Question-1
In the reduction of nitrobenzene, which of the following is the intermediate?
(A)
C
6
H
5
- N = O
(B)
C
6
H
5
NH - NHC
6
H
5
(C)
C
6
H
5
- N = N - C
6
H
5
(D)
O
↑
C
6
H
5
- N = N - C
6
H
5
Question-2
Attacking species in nitration of benzene in presence of fuming HNO
3
is
(A)
SO
3
(B)
(C)
(D)
Question-3
Nitrobenzene on further excessive nitration gives
(A)
sym - Trinitrobenzene
(B)
m - Dinitrobenzene
(C)
p - Dinitrobenzene
(D)
All of these
Question-4
Tautomerism will be exhibited by
(A)
(CH
3
)
3
CNO
(B)
(CH
3
)
2
NH
(C)
R
3
CNO
2
(D)
RCH
2
NO
2
Question-5
Tertiary nitro compounds do not tautomerise because
(A)
There is no double bond
(B)
There is no α - hydrogen
(C)
Oxygen is more electronegative than hydrogen
(D)
All of the above
Question-6
The reagent that reacts with nitromethane to form methylhydroxylamine is
(A)
Zn/HCl
(B)
Zn/NH
4
Cl
(C)
Zn/NaOH
(D)
Sn/HCl
Question-7
The major product (70% to 8%) of the reaction between m-dinitrobenzene with NH
4
HS is
(A)
(B)
(C)
(D)
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Plus 2 Computer Science
Kerala (English Medium)
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General principles and process of isolation of elements
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