JEE Main Chemistry question

[IIT 2012] The carboxyl (–COOH) functional group is genuinely present in

(A)Picric acid
(B)Barbituric acid
(C)Ascorbic acid (vitamin C)
(D)AspirinCorrect

Answer: (D)

Solution

Picric acid is a (nitro-substituted) phenol, barbituric acid is a cyclic imide/ureide, and ascorbic acid is a cyclic lactone with an enediol — none of

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Question ID VK-140133