The product $(B)$ in the following reaction is:

Reduction of which compound gives an optically active alcohol?

The major product obtained in the following reaction is:

Which of the following reactions can be used to convert an unsaturated ketone into an unsaturated hydrocarbon?

Which of the following compounds does $NOT$ undergo haloform reaction?

An optically active alkyl bromide $C_4H_9Br$ reacts with ethanolic $KOH$ to form major compound $[A]$, which reacts with bromine to give compound $[B]$. Compound $[B]$ reacts with ethanolic $KOH$ and sodamide to give compound $[C]$. One molecule of water adds to compound $[C]$ on warming with mercuric sulphate and dilute sulphuric acid at $333 \text{ K}$ to form compound $[D]$. The functional group in compound $[D]$ will be confirmed by: