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Question
Carboxylic acids are more acidic than phenol and alcohol because of
Options
intermolecular hydrogen bonding
formation of dimers
highly acidic hydrogen
resonance stabilization of their conjugate base
MCQ
Solution
resonance stabilization of their conjugate base
Explanation:
Resonance is more significant in carboxylates (conjugate bases of carboxylic acids) because the two resonating structures are similar, whereas in phenoxide, the resonating structures are not equivalent, and alkoxide ions do not show resonance.
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