JEE Main Chemistry question

Which of the following is the most acidic?

(A)*o*-NitrophenolCorrect
(B)2-Chloroethanol
(C)Phenol
(D)*o*-Cresol

Answer: (A)

Solution

*o*-Nitrophenol (pKₐ ≈ 7.2, strongly acidified by the adjacent electron-withdrawing –NO₂ group) is far more acidic than plain phenol (pKₐ ≈ 10) or *o*-cresol (made

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Question ID VK-140372