MHT CET 2025 Chemistry question

Chemistry Alcohols, Phenols and Ethers MHT CET 2025

Identify substrate 'A' in the following reaction

A + Sodium salicylate Salicylic acid

(A)Phenol
(B)Sodium phenoxideCorrect
(C)Salicylaldehyde
(D)o-Phenolsulphonic acid

Answer: (B)

Solution

This is the Kolbe (Kolbe-Schmitt) reaction: sodium phenoxide, formed by treating phenol with NaOH, reacts with at 398 K and 6 atm (electrophilic substitution, mainly at the ortho position) to give sodium salicylate, which on acidification with gives

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Question ID VK-101954