One mole of an alkane $(x)$ requires $8$ mole oxygen for complete combustion. The sum of the number of carbon and hydrogen atoms in the alkane $(x)$ is . . . . . . .

How many dichloro products are formed in the reaction of cyclopentane with excess $Cl_2$ in the presence of $h\nu$ (including stereoisomers)?

The product formed in the first step of the reaction of $CH_3-CH_2-CH(Br)-CH_2-CH(Br)-CH_3$ with excess $Mg / Et_2O$ $(Et = C_2H_5)$ is

Prepare the following products from methane $(CH_4)$: $(i)$ Methyl chloride,$(ii)$ Carbon black,$(iii)$ Carbon dioxide,$(iv)$ Methanol,$(v)$ Methanal,$(vi)$ Carbon monoxide,$(vii)$ Dihydrogen,$(viii)$ Methyl iodide,$(ix)$ Methyl bromide.

The suitable reagents for the conversion of methane into methyl iodide are

Acetic acid is reacted with metallic sodium to form hydrogen and $X$. When $X$ is heated with sodalime,$Y$ and sodium carbonate are formed. $Y$ is