A) \[N{{H}_{2}}CONHN{{H}_{2}}.\,HCl\]
B) \[N{{H}_{2}}.\,\,N{{H}_{2}}.\,\,HCl\]
C) \[N{{H}_{2}}CON{{H}_{2}}\]
D) \[{{C}_{6}}{{H}_{5}}NHN{{H}_{2}}.\,\,HCl\]
Correct Answer: B
Solution :
Some compound like hydrazine (NH2-NH2) although contain nitrogen but they do not respond Lassaignes test because they do not have any carbon and hence, NaCN is not formed.You need to login to perform this action.
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