(A): IUPAC name of HOOC-COOH is ethanedioic acid
(R): it contains two ketonic and two hydroxy groups.

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(A) and (R) are true and (R) is the correct explanation of (A)

(A) and (R) are true but (R) is not the correct explanation of (A)

(A) true, (R) false

A() false, (R) true

answer is C.

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Detailed Solution

We can see that the groups are COOH not only C=O. Since C=O is just a part of COOH

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