Question

Lassaigne?? test for the detection of nitrogen fails in

• A. $NH_{2}CONHNH_{2}\cdot HCl$
• B. $NH_{2}NH_{2}\cdot HCl$
• C. $NH_{2} CONH_{2}$
• D. $C_{6}H_{5}NHNH_{2}. HCl$

Answer 1

Answer: (B)

$NH_{2}NH_{2}\cdot HCl$

Answer 2

Answer (b) $NH_{2}NH_{2}\cdot HCl$