CBSE 2026 · Region 5 · Set 3 · Q4 · 1 mark
Which of the following reagents are used to prepare primary amines by Hoffmann bromamide degradation reaction?(i)$\displaystyle \mathrm{R}-\overset{\textstyle\mathrm{O}}{\overset{\textstyle\|}{\mathrm{C}}}-\mathrm{NH_2}$(ii)NaOH(iii)$\displaystyle \mathrm{Br}_{2}$(iv)$\displaystyle \mathrm{CHCl}_{3}$
Which of the following reagents are used to prepare primary amines by Hoffmann bromamide degradation reaction?
(i)
$\displaystyle \mathrm{R}-\overset{\textstyle\mathrm{O}}{\overset{\textstyle\|}{\mathrm{C}}}-\mathrm{NH_2}$
(ii)
NaOH
(iii)
$\displaystyle \mathrm{Br}_{2}$
(iv)
$\displaystyle \mathrm{CHCl}_{3}$
Official answer
From CBSE’s own marking scheme for this paper.
(C)
(i), (ii) and (iii)
AminesPreparation of AminesRemembermcqmedium
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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.