Question

Canonical structures of anilinium ion obtained by accepting a proton are given below. Choose the correct statements.

• A. Anilinium ion has two stable canonical structures I and III
• B. II is not an acceptable structure because carbonium ion is less stable
• C. Only I and III are acceptable aromatic canonical structures since II is non-aromatic
• D. Anilinium ion has three stable canonical structures I, II and III

Answer 1

Answer: (A)

II is not an acceptable canonical structure because nitrogen has $10$ valence electrons in the structure. Anilinium ion exists in two canonical structures only which are I and III.