CBSE 2022 · Region 2 · Set 2 · Q1 · 2 marks
Predict the products formed when $\displaystyle \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHO}$ reacts with the following reagents : (Any two)(i)PhMgBr and then $\displaystyle \mathrm{H}_{3} \mathrm{O}^{+}$(ii)$\displaystyle \mathrm{LiAlH}_{4}$(iii)HCN
Predict the products formed when $\displaystyle \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHO}$ reacts with the following reagents : (Any two)
(i)
PhMgBr and then $\displaystyle \mathrm{H}_{3} \mathrm{O}^{+}$
(ii)
$\displaystyle \mathrm{LiAlH}_{4}$
(iii)
HCN
Marking-scheme solution
(i)
/$\displaystyle 1$-Phenylpropanol
(ii) $\displaystyle \mathrm{CH}_3\mathrm{CH}_2\mathrm{CH}_2\mathrm{OH}$
/ Propanol
(c)
/ $\displaystyle 2$- Hydroxybutane nitrile
Aldehydes, Ketones and Carboxylic AcidsChemical Reactions of Aldehydes, Ketones and Carboxylic AcidsApplyvery_short_answermedium
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CBSE Class 12 Chemistry past-paper question from the 2022board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.