Name the hydrocarbon that is a liquid at $STP$.

When sodium propionate is heated with soda lime,the main product is

Bromination of alkanes involves:

The alkane which is next to methane in the homologous series can be prepared from which of the following reactions?
$I$. $2 CH_3 Br \xrightarrow[\text{dry ether}]{Na}$
$II$. $CH_3 COOH \xrightarrow[CaO, \Delta]{NaOH}$
$III$. $CH_3 CH=CH_2 \xrightarrow{H_2 / Pt}$
$IV$. $CH_3 CH_2 Br \xrightarrow[H^{+}]{Zn}$
Correct answer is

$LPG$ mainly consists of the following:

Which of the following compounds does not give different isomers on monochlorination?