JEE Main Chemistry question

Which of the following methods cannot be used for the preparation of an ester?

(A)Correct
(B) pyridine
(C)
(D) pyridine

Answer: (A)

Solution

In the presence of hydroxide (a base), a carboxylic acid is simply deprotonated to its unreactive carboxylate salt, which cannot undergo nucleophilic acyl substitution with the alcohol, so no ester forms; acid

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Question ID VK-148776