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Give one chemical test of distinguish be...

Give one chemical test of distinguish between the following pairs of compounds.
Aniline and N.Methylaniline

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Aniline `(1^(@) - "amine")` and N.Methyl `(2^(@) - "amine")` aniline are distinguished by carbylamine test (or) isocyanide test. Aniline responds to carbyl amine test to give foul smelling phenyl iso cyanide where as N - methyl aniline does not responds to carbyl amine Test.
`C_(6)H_(5)NH_(2)+CHCl_(3)+ak.KOH overset(Delta)to underset("(Foul smelline)") underset("Phenyl isocyamide")(C_(6)H_(5)NC+3KCl+3H_(2)O)`
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