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प्रश्न
Which of the following is most stable?
विकल्प
MCQ
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उत्तर
Explanation:
Benzene is aromatic (4n + 2 = 6 π electrons), so it gains large resonance (aromatic) stabilization.
The cyclopropenyl cation (a) is aromatic with 2 π electrons but is positively charged and highly ring‑strained, so it’s not as stable overall as neutral benzene.
The cyclopentadienyl cation (c) would have 4 π electrons and is antiaromatic (destabilized); (b) lacks a conjugated π system and so has no aromatic stabilization.
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