CBSE 2024 · Region 4 · Set 1 · Q11 · 1 mark
Match the reagents required for the given reactions : I. Oxidation of primary alcohols to (p) $\displaystyle \mathrm{NaBH}_{4}$ aldehydes II. Butan-$\displaystyle 2$-one to Butan-$\displaystyle 2$-ol
(q) $\displaystyle 85$% phosphoric acid at $\displaystyle 440$ K III. Bromination of Phenol to $\displaystyle 2$, $\displaystyle 4$, $\displaystyle 6$- (r) PCC Tribromophenol IV. Dehydration of propan-$\displaystyle 2$-ol to (s) Bromine water propene
Official answer
From CBSE’s own marking scheme for this paper.
(A)
$\displaystyle \mathrm{I}-(\mathrm{r})$, II - (p), III - (s), IV - (q)
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CBSE Class 12 Chemistry past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.