Chemistry - GOC Question with Solution | TestHub

Question Explanation: We need to find which compound among the given options does not satisfy aromaticity rules and hence is non-aromatic.

Concept: This question is based on Aromaticity, Hückel’s Rule, Planarity, and Conjugation.

Solution: For a compound to be aromatic, it must be cyclic, planar, fully conjugated, and follow Hückel’s $4n+2$$\pi$ electron rule ($n=0,1,2,\dots$).

If any of these conditions are not fulfilled (like loss of planarity or absence of conjugation), the compound becomes non-aromatic.

For the following ion/compounds: