CBSE 2025 · Region 1 · Set 1 · Q16 · 1 mark
Assertion (A) : All naturally occurring $\displaystyle \alpha$-amino acids except glycine are optically active.
Reason (R) : Most naturally occurring amino acids have L-configuration.
Official answer
From CBSE’s own marking scheme for this paper.
(B)
Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
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CBSE Class 12 Chemistry past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.