Q. An optically active alkyl bromide $X \left(C_{6}H_{13}Br\right)$ upon treatment with ethanolic $KOH$ solution forms two alkenes $Y$ and $Z$ with their molecular formula $\left(C_{6}H_{12}\right). Y$ and $Z$ are positional isomers. $Z$ upon treatment with cold, dilute alkaline $KMnO_{4}$ solution gives a meso-diol. Hence, $X$ is
Hydrocarbons
Solution: