A) phenyl isocyanide
B) benzyl amine
C) benzyl chloride
D) ethyl iso-cyanide
Correct Answer: A
Solution :
\[{{C}_{6}}{{H}_{5}}N{{H}_{2}}+CHC{{l}_{3}}+3KOH\to \underset{phenyl\text{ }isocyanide}{\mathop{{{C}_{6}}{{H}_{5}}\overset{=}{\mathop{\to }}\,C}}\,\] \[=3KCl+3{{H}_{2}}O\] This is carbylamine reaction. In this reaction primary aliphatic or aromatic amines react with chloroform and KOH to form bad smelling isocyanide. This reaction is used as test for \[{{1}^{o}}\] amines.
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