Identify the non-benzenoid aromatic compound | vedclass

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Question

(C) non-benzenoid aromatic compound is a cyclic,planar,conjugated system that follows $H$ückel's rule ($4n+2$ $\pi$ electrons) but does not contain a

Vedclass · Accepted Answer

Tropone

Vedclass · Answer

(C) non-benzenoid aromatic compound is a cyclic,planar,conjugated system that follows $H$ückel's rule ($4n+2$ $\pi$ electrons) but does not contain a benzene ring.$1$. Benzene,Phenol,and Naphthalene are all benzenoid aromatic compounds as they contain at least one benzene ring.$2$. Tropone $(C_7H_6O)$ contains a seven-membered ring. Its resonance structure involves a dipolar form where the seven-membered ring becomes a tropylium cation $(C_7H_7^+)$,which is aromatic ($6$ $\pi$ electrons) and non-benzenoid.Therefore,the correct option is $C$.

Identify the non-benzenoid aromatic compound from the following:

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