Q. Which among the following is a non-benzenoid aromatic compound?

 2198  211 KVPYKVPY 2017Organic Chemistry – Some Basic Principles and Techniques Report Error

Solution:

Non-benzenoid aromatic compounds are those compounds which do not have benzene ring. They exhibit aromaticity due to alternate bonds in the molecule. The structure of compounds given in options are as follows :
image
Thus, thiophene is a non benzenoid compound