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Lassaigne's test for the detection of ni...

Lassaigne's test for the detection of nitrogen will fail in the case of:

A

`NH_(2)CONH_(2)`

B

`NH_(2)CONHNH_(2).HCl`

C

`NH_(2)NH_(2).HCl`

D

`C_(6)H_(5)NHNH_(2).2HCl`

Text Solution

Verified by Experts

The correct Answer is:
C
`NH_(2)-NH_(2)` (inorganic compound give -ve Lassigne.s test)
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