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

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

A

`NH_(2)CONH_(2)`

B

`H_(2)NCONHNH_(2).HCl`

C

`H_(2)N.NH_(2).2HCl`

D

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

Text Solution

Verified by Experts

The correct Answer is:
C
For Lassaigne's test of `N,` compound must containe `N` in addition to carbon, so that `NaCN` can be formed in sodium extract.
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Lassaigne's test for the detection of nitrogen fails in

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