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Byju's Answer
Standard XII
Chemistry
Amines as Nucleophiles
Cyclohexanone...
Question
C
y
c
l
o
h
e
x
a
n
o
n
e
+
H
2
N
−
N
H
−
O
|
|
C
−
N
H
2
→
P
r
o
d
u
c
t
What type of product is formed in the reaction?
A
Hydrazone
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B
Semicarbazone
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C
2,4-dinitrophenyl-hydrazone
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D
Phenylhydrazone
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Solution
The correct option is
B
Semicarbazone
The carbonyl derivative formed by this type of reaction is called a semicarbazone.
R
1
−
R
2
/
H
|
C
=
N
−
N
H
−
O
|
|
C
−
N
H
2
Where, the carbon bonded to
R
1
can be bonded to an other alkyl group or a hydrogen
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C
y
c
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n
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n
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+
H
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−
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|
C
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→
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Q.
C
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+
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−
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−
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→
P
r
o
d
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What type of product is formed in the reaction?
Q.
Urea
⎡
⎢ ⎢
⎣
H
2
N
−
C
∥
O
−
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H
2
⎤
⎥ ⎥
⎦
molecule exhibits (isomerism):
Q.
P
h
−
O
H
|
C
H
−
C
H
3
P
C
C
→
(
A
)
N
H
2
−
N
H
−
O
|
|
C
−
N
H
2
⟶
(
B
)
Product (B) is?
Q.
How many grams of urea on heating yield
10
22
molecules of biuret by the reaction given below?
2
C
O
(
N
H
2
)
2
⟶
H
2
N
−
C
O
−
N
H
−
C
O
−
N
H
2
+
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H
3
?
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