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JEEMAIN and NEET
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Chemistry
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Practical Chemistry
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Q)
Lassaigne's test for the detection of nitrogen fails in
(a)
H
2
N
.
C
O
N
H
N
H
2
.
H
C
l
(b)
H
2
N
N
H
2
.
H
C
l
(c)
H
2
N
C
O
N
H
2
(d)
C
6
H
5
N
H
N
H
2
.
H
C
l
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