JEE Main202226 Jul 2022Morning ShiftChemistryGeneral Organic ChemistryActual

Which of the following compounds is not aromatic?

Correct answer

Step-by-step solution

Characteristics of aromatic compounds include: - Must be Cyclic and planar - Must have 4 n + 2 π electrons n = 1 ,   2 ,   3 ,   4 ,   . . . . - Resist Addition but Prefer Substitution. - Must Possess Resonance Energy. Due to severe non-bonded interactions between the internal hydrogen (as shown in figure), the ring assumes non-planar geometry in 10-annulene, hence, it is not an aromatic compound.

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