Question

The preparation of diazonium salts from primary aromatic amines is known as ______

(a) acylation

(b) alkylation

(c) benzonation

(d) diazotisation

This question was posed to me by my college professor while I was bunking the class.

Question is taken from Preparation Method of Diazonium Salts topic in division Amines of Chemistry – Class 12

Answer 1

Correct answer is (d) diazotisation

To elaborate: This is a method of preparation of diazonium salts. This occurs by the formation of nitrosonium ion followed by diazohydroxide, which on protonation gives diazonium ion. This takes up the acid anion to form diazonium salt.