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Question
Which of the following is most acidic?
Options
Benzyl alcohol
Cyclohexanol
Phenol
m-Chlorophenol
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Solution
m-Chlorophenol
Explanation:
m-chlorophenol is most acidic. Alpha carbon of benzyl alcohol and cyclohexanol is sp3 hybridized. In m-chlorophenol, it is sp2 hybridized. In m-chlorophenol, electron-withdrawing group \[\ce{-Cl}\] is present at meta position.
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