CBSE Class 12 · 2000 · Delhi · Compounds Containing NitrogenVery Short Answer

Account for the following: ammonolysis of an alkyl halide does not give the corresponding amine in a pure state.

Solution

The product amine is at least as nucleophilic as NH

_{3}

, so it alkylates further:

RX N H_{3} RN H_{2} RX R_{2} NH RX R_{3} N RX R_{4} N^{+} X^{-}

All four products form together — the primary amine is never obtained pure.

CBSE Class 12 Board · 2000 · Delhi · Subjective