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Question

Chemistry Question on Alcohols, Phenols and Ethers

Which of the following compound is most acidic ?

A

Cl−CH2−CH2−OHCl-CH_2-CH_2-OH

B

C

D

Answer

Explanation

Solution

When electron withdrawing groups are attached at ortho or para-positions of phenol/carboxylic acid, they inerease the acidic nature. As−NO2As - NO _{2} is a strong electron withdrawing group. It pulls the electron density towards itself, weakens the −- OH bond. Hence, increases the acidic nature.