A) \[{{({{C}_{2}}{{H}_{5}})}_{2}}NH\]
B) \[{{({{C}_{2}}{{H}_{5}})}_{3}}N\]
C) \[C{{H}_{3}}NH{{C}_{6}}{{H}_{5}}\]
D) \[{{C}_{2}}{{H}_{5}}N{{H}_{2}}\]
Correct Answer: D
Solution :
Aliphatic and aromatic primary amines when warmed with chloroform and an alcoholic solution of \[KOH\], form isocyanide or carbylamine. \[\underset{ethyl\,\text{amine}}{\mathop{{{C}_{2}}{{H}_{5}}N{{H}_{2}}}}\,+\underset{chloroform}{\mathop{CHC{{l}_{3}}}}\,+3KOH(alc.)\xrightarrow{Warm}\] \[\underset{\begin{smallmatrix} ethyl \\ isocyanide \end{smallmatrix}}{\mathop{{{C}_{2}}{{H}_{5}}NC}}\,+3KCl+3{{H}_{2}}O\] Carbylamine reaction is a characteristic reaction of primary amines and can be used to distinguish primary amines from secondary and tertiary amines.
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