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TS EAMCET 5-Aug-2021 Shift 1 Question Paper
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Question : 160
Total: 160
The test that distinguishes primary amines from other amines is
Iodoform test
Victor Meyer test
Lucas test
Carbylamine test
Validate
Solution:
Primary amines can be distinguished from other amines by carbylamine test. Chemical reaction is as follows:
R
N
H
2
Primary
amine
+
C
H
C
l
3
Chloroform
+
K
O
H
Potassium
hydroxide
⟶
R
N
C
Alkyl
isocyanide
A
r
−
N
H
2
Primary
amine
+
C
H
C
l
3
Chloroform
+
K
O
H
Potassium
hydroxide
⟶
A
r
−
N
C
Aryl
isocyanide
Here,
−
R
may be an alkyl or an aryl group.
Secondary and tertiary amines do not give carbylamine reaction test.
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