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Chemistry · 2023 · 2 marks
CBSE 2023 · Region 2 · Set 2 · Q25
Do the following conversions in not more than two steps: 2 × 1 (a) CH_3 CN to (b) to
Do the following conversions in not more than two steps : $\displaystyle \mathbf{2} \boldsymbol{\times} \mathbf{1}$
(a)
$\displaystyle \mathrm{CH}_{3} \mathrm{CN}$ to
(b)
to
Marking-scheme solution
(a)
$$\mathrm{CH_3CN} \xrightarrow[\text{Dry ether}]{\mathrm{CH_3MgBr}} \mathrm{CH_3 - \underset{\underset{CH_3}{|}}{C} = NMgBr} \xrightarrow[\mathrm{H^+}]{\mathrm{H_2O}} \mathrm{CH_3 - \underset{\underset{CH_3}{|}}{C} = O}$$
(b)
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CBSE Class 12 Chemistry past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.