CBSE 2022 · Region 1 · Set 1 · Q9 · 3 marks

An organic compound 'X' with the molecular formula $\displaystyle \mathrm{C}_{5} \mathrm{H}_{10} \mathrm{O}$ forms $\displaystyle 2,4$-DNP derivative, does not reduce Tollens' reagent but gives positive iodoform test on heating with $\displaystyle \mathrm{I}_{2}$ in the presence of NaOH. Compound 'X' gives ethanoic acid and propanoic acid on vigorous oxidation. Write the

(i)

Structure of the compound 'X'.

(ii)

Structure of the product obtained when compound 'X' reacts with $\displaystyle 2,4$-DNP reagent.

(iii)

Structures of the products obtained when compound 'X' is heated with $\displaystyle \mathrm{I}_{2}$ in the presence of NaOH .

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.