CBSE 2026 · Region 1 · Set 3 · Q15 · 1 mark
Assertion (A) : The pentaacetate of glucose does not react with $\displaystyle \mathrm{H}_{2} \mathrm{~N}-\mathrm{OH}$.
Reason (R) : It indicates the absence of free -CHO group in glucose.
Official answer
From CBSE’s own marking scheme for this paper.
(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
BiomoleculesCarbohydratesUnderstandassertion_reasonmedium
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CBSE Class 12 Chemistry past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.