Which of the following is most acidic?

Benzyl alcohol

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Cyclohexanol

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Phenol

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m - Chlorophenol

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Solution

The correct option is D m - Chlorophenol
Halogens have both +R and -I effect, but the -I effect predominates over the +R effect. Therefore, m-Chlorophenols most acidic due to electron withdrawing - $C l$ group. Alcohols are less acidic than phenol.

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Similar questions

Which of the following is most acidic?
(a) Benzyl alcohol
(b) Cyclohexanol
(c) Phenol
(d) m - chlorophenol

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