Question

Which one of the following is a benzenoid aromatic compound?

• A. Furan
• B. Thiophene
• C. Pyridine
• D. Aniline

Answer 1

Answer: (D)

Aniline

Answer 2

Only aniline is a benzenoid aromatic compound as only aniline has a benzene ring which satisfy the conditions of an aromatic compound, i.e. (i) has planar structure (ring). (ii) has $6 \pi$ -electrons. (iii) all C-atoms belong to the ring resp $^{2}$ -hybridised.