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Byju's Answer
Standard XII
Chemistry
Formation of Enamines
Benzene CH 2=...
Question
Benzene
C
H
2
=
C
H
−
C
H
3
−
−−−−−−−−−
→
H
+
M
H
+
−
−−−−
→
K
M
n
O
4
N
S
O
C
l
2
−
−−−
→
Y
a
n
h
y
d
.
A
l
C
l
3
−
−−−−−−−
→
Benzene
Z
Choose the incorrect option according to given reaction.
A
Z react with
H
2
N
−
O
H
and formed product show geometrical isomerism
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B
Product N gives
C
O
2
gas with
N
a
H
C
O
3
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C
M forms cumenehydroperoxide with
O
2
/
Δ
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D
Z forms oxime with
N
H
2
O
H
and this oxime on reaction with
H
2
S
O
4
gives
P
h
−
O
|
|
C
−
N
H
−
P
h
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Solution
The correct option is
A
Z react with
H
2
N
−
O
H
and formed product show geometrical isomerism
Benzoic acid on treatment with sodium bicarbonate produces
C
O
2
.
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Similar questions
Q.
Assertion :
P
h
⊕
N
2
B
r
⊖
on reaction with
N
a
O
H
gives benzene diazohydroxide. Reason:
⊖
O
H
is a strong nucleophile, attacks the terminal N atom, and forms a covalent bond.
Q.
The smallest ketone and its next homologue are reacted with
N
H
2
O
H
to form oxime:
Q.
The smallest ketone and its next homologue are reacted with
N
H
2
O
H
to form oxime:
Q.
A compound X decolourises
B
r
2
water and reacts slowly with conc.
H
2
S
O
4
to give an addition product. X reacts with HBr to form Y.Y reacts with NaOH to form, Z, On oxidation Z gives hexan-3-one. X,Y and Z in the reactions are :
Q.
Which of the following will form only one oxime on reaction with
N
H
2
O
H
solution?
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