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  4. By the action of alcoholic caustic potash on chloroform and aniline, a bad-smelling substance is formed. The substance is

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Q. By the action of alcoholic caustic potash on chloroform and aniline, a bad-smelling substance is formed. The substance is

NTA AbhyasNTA Abhyas 2022

Solution:

Action of alcoholic caustic potash on chloroform and aniline forms a bad-smelling compound phenyl isocyanide.
$C_{6}H_{5}NH_{2}+CHCl_{3}+3KOH\left(alcohol\right) \rightarrow C_{6}H_{5}NC+3KCl+3H_{2}O$
This reaction is called carbylamine reaction and, it is actually the test of primary amines.