CBSE 2026 · Region 5 · Set 3 · Q27 · 3 marks
How do you convert the following ?(a)Benzene to m-Nitroacetophenone(b)Bromobenzene to $\displaystyle 1$-Phenylethanol(c)But-$\displaystyle 3$-en-$\displaystyle 2$-one to Prop-$\displaystyle 2$-en-$\displaystyle 1$-oic acid
How do you convert the following ?
(a)
Benzene to m-Nitroacetophenone
(b)
Bromobenzene to $\displaystyle 1$-Phenylethanol
(c)
But-$\displaystyle 3$-en-$\displaystyle 2$-one to Prop-$\displaystyle 2$-en-$\displaystyle 1$-oic acid
Marking-scheme solution
(a)
(b)
(c)
$\displaystyle \mathrm{CH_2=CH-\underset{\underset{O}{\|}}{C}-CH_3} \xrightarrow[\ \mathrm{H^+}\ ]{\ \mathrm{NaOI}\ } \mathrm{CH_2=CH-COOH}$
Aldehydes, Ketones and Carboxylic AcidsPreparation of Aldehydes and KetonesApplyshort_answerhard
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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.