When acetylene reacts with $HCl$ in the presence of $HgCl_2$,the product formed is.........

What is formed when acetylene reacts with alkaline $KMnO_4$?

$CH_3-C \equiv CH$ $\xrightarrow{Na} X$ $\xrightarrow{CH_3-Cl} Y$,$Y$ is

The product $(C)$ of the above reaction is:
Maleic anhydride $\xrightarrow{H_3O^+}$ $(A)$ $\xrightarrow{NaOH}$ $(B)$ $\xrightarrow{\text{Kolbe electrolysis}}$ $(C)$

The molecular formula of the first member of the family of alkenynes and its name is given by the set:

Which is represented by the formula $C_n H_{2n - 2}$?