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  4. Assertion: Cyclopentadienyl anion is much more stable than allyl anion. Reason: Cyclopentadienyl anion is aromatic in character.

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Q. Assertion : Cyclopentadienyl anion is much more stable than allyl anion.
Reason : Cyclopentadienyl anion is aromatic in character.

AIIMSAIIMS 2005Hydrocarbons

Solution:

Cylopentadienyl anion is more stable than allyl anion as the former is aromatic and is stabilised by resonance.

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