JEE Main 2004 Chemistry question

Consider the acidity of the carboxylic acids:

(1)PhCOOH
(2)Correct
(3)
(4)

Answer: (2)

Solution

The electron-withdrawing group stabilises the carboxylate ion and increases acidity. o-Nitrobenzoic acid is the strongest because of the ortho effect (steric inhibition of resonance of COOH with

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Question ID VK-038429