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  3. Chemistry
  4. Which of the following is most acidic?

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Q. Which of the following is most acidic?

Alcohols Phenols and Ethers

Solution:

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