Chemistry - GOC Question with Solution | TestHub

Question Explanation:

The question asks to identify how many compounds in the given list are aromatic.

Concept:

This question is based on Huckel's rule of aromaticity.

Solution:

A compound is aromatic only if it is cyclic, planar, fully conjugated, and contains $(4n+2)\pi$-electrons. Compounds (3), (4), (5), (7), (8), and (10) satisfy all these conditions: each has a continuous conjugated ring system, planarity, and the required number of $\pi$-electrons.

The remaining compounds fail one or more criteria (non-planar, non-cyclic, interrupted conjugation, or incorrect $\pi$-electron count) and hence are not aromatic.

Final Answer: 6