Which L-sugar on oxidation gives an optically active dibasic acid ( 2 COOH groups)?

Which L-sugar on oxidation gives an optically active dibasic acid ( 2 COOH groups)?

Solution

Any sugar will be optically active when it does not have any plane of symmetry. As only (a) \& (d) are L-sugar, (b) \& (c) are D-sugar after oxidation.
(a) (Refer to Image 1) - The product do not superimpose in its mirror image.
(d) (Refer to Image 2) - As it has plane of symmetry.

Asked in: JEE-TOPICTESTS-CHEMISTRY

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