The main constituent of marsh gas is:

Determine the number of mono-chloro products (structural isomers only) formed by the reaction of isopropylcyclopentane with $Cl_2/\Delta$.

$CH_3-CH(CH_3)-CH_3 + CH_2=CH_2 \xrightarrow[2.5^oC]{HF} (A)$; $(A)$ is:

Photochemical chlorination of alkane is initiated by a process of

The reaction of an alkyl bromide $(X)$ with $Na$ in dry ether gives $4, 5-$diethyl octane. Then $(X)$ is:

The cycloalkane formed when $1,4$-dibromopentane is heated with sodium is: