Classify the following compounds as aromatic,

Solution:

Here we have to classify the following compounds as aromatic, antiaromatic, or nonaromatic.

Step 1

Aromatic compound:- The compounds which obey Huckel’s rule of aromaticity (4n+2) is called aromatic compound.

Antiaromatic or nonaromatic  compound:-Antiaromatic compounds are the cyclic molecule with a π electron system. It has higher energy due to the presence of 4n electrons in it.

This compound is nonaromatic because the internal H are not planar.