JEE Main Chemistry question

The reagent which does not give acid chloride on treating with a carboxylic acid is

(A)PCl₅
(B)Cl₂Correct
(C)SOCl₂
(D)PCl₃

Answer: (B)

Solution

PCl₅, SOCl₂ and PCl₃ are all standard reagents that convert the –OH of a carboxylic acid into –Cl, giving the acid chloride. Elemental chlorine, Cl₂, does not

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Question ID VK-149241