NEET2013ChemistryGeneral Organic ChemistryActual

Which of the following chemical system is non aromatic?

Correct answer

Step-by-step solution

Hackle rule (4 n+2) electron is used to distinguish whether a compound is aromatic or non aromatic. The compound (4) has 4 e⁻ and thus it does not follow (4 n+2) rule is non aromatic.

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