A) \[{{C}_{2}}{{H}_{5}}N{{H}_{2}}\]
B) \[{{({{C}_{2}}{{H}_{5}})}_{2}}NH\]
C) \[{{(C{{H}_{3}})}_{3}}N\]
D) \[C{{H}_{3}}CN\]
E) \[{{C}_{6}}{{H}_{5}}CON{{H}_{2}}\]
Correct Answer: A
Solution :
Only primary amines e.g., \[C{{ & }_{2}}{{H}_{5}}N{{H}_{2}}\]when heated with chloroform and alcoholic caustic potash give isocyanides having very unpleasant smell \[\underset{ethylamine}{\mathop{{{C}_{2}}{{H}_{5}}N{{H}_{2}}}}\,+CHC{{l}_{3}}+3KOH\xrightarrow{{}}\] \[\underset{ethyl\text{ }isocyanide}{\mathop{{{C}_{2}}{{H}_{5}}NC}}\,+3KCl+3{{H}_{2}}O\]
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