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Chemistry · 2025 · 1 mark
CBSE 2025 · Region 1 · Set 1 · Q16
Assertion (A): All naturally occurring α -amino acids except glycine are optically active. Reason (R): Most naturally occurring amino acids have…
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
(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 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.