What is obtained by the electrolysis of an aqueous solution of $CH_3COOK$?

In the alkane $CH_3-CH_2-C(CH_3)_2-CH_2-CH(CH_3)_2$,identify $1^{\circ}$,$2^{\circ}$,and $3^{\circ}$ carbon atoms and give the number of $H$ atoms bonded to each one of these.

For the preparation of alkanes,an aqueous solution of sodium or potassium salt of carboxylic acid is subjected to:

Match the column and find the correct answer:

Column-$I$	Column-$II$
$i$. $n$-Butane $\to 2$-methylpropane	$A$. Free radical substitution
$ii$. $CH_4 + Cl_2 \xrightarrow{hv} CH_3Cl + HCl$	$B$. Wurtz reaction
$iii$. $R-COONa \xrightarrow{\text{soda-lime}} R-H$	$C$. Isomerism
$iv$. $R-X + Na \xrightarrow{\text{Ether}} R-R$	$D$. Decarboxylation

When ethyl iodide and propyl iodide react with $Na$ in the presence of ether,they form

Write the preparation of methane from methyl chloride and acetic acid.