CBSE 2026 · Region 4 · Set 1 · Q13 · 1 mark
Assertion (A) : Alcohols act as Bronsted bases as well as Bronsted acids.
Reason (R): It is due to the presence of unshared electron pairs on oxygen atom and presence of polar $\displaystyle \mathrm{O}-\mathrm{H}$ bond.
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).
Alcohols, Phenols and EthersAlcohols and PhenolsUnderstandassertion_reasoneasy
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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.