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  4. Aniline chloroform and alcoholic KOH reacts to produce a bad smelling substance which is:

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Q. Aniline chloroform and alcoholic $KOH$ reacts to produce a bad smelling substance which is:

AFMCAFMC 2002

Solution:

The given reaction is called carbylamine reaction
$\underset{\text{p-amine or aniline}}{RNH _{2}}+ CHCl _{3}+\underset{alc}{3 K \cdot OH} \longrightarrow \underset{\text{Alkyl isocyanide}}{R NC} +3 KCl +3 H _{2} O$
$C _{6} H _{5} NH _{2}+ CHCl _{3}+ 3 KOH \longrightarrow \underset{\text{Phenyl isocyanide}}{ C _{6}H _{5} NC} +3 KCl +3 H _{2} O$
All isocyanides are foul smelling compound.
This is a test to identify primary amines.