If $CH_4$ is known as methane,then $C_9H_{20}$ is known as

$n$-Propyl chloride reacts with sodium metal in dry ether to give:

Consider the isomers of the hydrocarbon with molecular formula $C_5H_{10}$. These isomers do not decolourise $KMnO_4$ solution. These isomers are subjected to chlorination with chlorine in the presence of light to give monochloro compounds. The total number of monochloro compounds (structural isomers only) formed from all these isomers is . . . . . . .

In the preparation of $n$-butane by the reaction of $C_2H_5I$ with $Na$ in the presence of ether,which of the following impurities is involved?

In the following reaction '$X$' is
$CH_3(CH_2)_4CH_3 \xrightarrow[HCl, \Delta]{\text{Anhy. } AlCl_3} X$

Determine the structure and name of $A$ and $B$ in the following reaction sequence:
$(A)$ $\xrightarrow{NaOH, -H_2O} (B)$ $\xrightarrow{NaOH, CaO, \Delta} CH_3CH_3$