Question

Account for the following:

Diazonium salts of aromatic amines are more stable than those of aliphatic amines.

Answer 1

The diazonium ion undergoes resonance as shown below:

This resonance accounts for the stability of the diazonium ion. Hence, diazonium salts of aromatic amines are more stable than those of aliphatic amines.

Answer 2

The diazonium salts of aromatic amines are more stable than those of aliphapic amines due to dispersal of the positive charge on benzene ring as a result of resonance.