Carboxylic acid on treating with which reagent does not give acid chloride?

Question

Carboxylic acid on treating with which reagent does not give acid chloride?, P C l 5, P C l 3, S O C l 2, C l 2

MARKS App · Accepted Answer

C H 3 C O O H + C l 2 → C H 2 C l C O O H + H C l C H 3 C O O H + P C l 5 → C H 3 C O C l + P O C l 3 + H C l C H 3 C O O H + S O C l 2 → C H 3 C O C l + S O 2 + H C l 3 C H 3 C O O H + P C l 3 → 3 C H 3 C O C l + H 3 P O 3

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