JEE Main Chemistry question

Among the following compounds, the most acidic is

(A)p-nitrophenol
(B)p-hydroxybenzoic acid
(C)o-hydroxybenzoic acidCorrect
(D)p-toluic acid

Answer: (C)

Solution

Carboxylic acids are intrinsically far more acidic than phenols, so p-nitrophenol (pKa≈7.2, still only a phenol) is less acidic than any of the benzoic acid derivatives. Among the acids, the ortho-hydroxyl in salicylic acid

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Question ID VK-139068