MHT CET 2022 Chemistry question

The number of alcoholic –OH and –COOH group in citric acid respectively are

(A)2 and 1
(B)3 and 1
(C)1 and 3Correct
(D)1 and 2

Answer: (C)

Solution

Citric acid is 2-hydroxypropane-1,2,3-tricarboxylic acid, \mathrm{HOOC{-}CH_2{-}C(OH)(COOH){-}CH_2{-}COOH}. It has one alcoholic (tertiary) –OH group on the central carbon and

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Question ID VK-094421