Consider the following

Statement I Kolbe's electrolysis of sodium propionate gives $n$-hexane as product.

Statement II In Kolbe's process $\mathrm{CO}_2$ is liberated at anode and $\mathrm{H}_2$ is liberated at cathode.

Correct answer is

The catalyst used for the isomerisation of $n$-alkanes to branched chain alkanes is

What are $X$ and $Y$ respectively, in the following set of reactions?

$$ \begin{aligned} &\text { Consider the following reaction sequence }\\ &\text { Vinyl benzene } \xrightarrow[\Delta]{\mathrm{KMnO}_4+\mathrm{KOH}} X \xrightarrow[\Delta]{\mathrm{NaOH}+\mathrm{CaO}} Y \end{aligned} $$

$' Y$ ' can also be formed from