Pick out the alkane which differs from the other members of the group.

Give the general formula of an alkyl group.

The compound $(X)$ on $(i)$ heating in the presence of anhydrous $AlCl_3$ and $HCl$ gas gives $2,4$-dimethylpentane, $(ii)$ aromatization gives toluene, and $(iii)$ cyclisation gives methylcyclohexane. The correct name of compound $(X)$ is:

Consider the following reaction:
$H_3C-CH(D)-CH(CH_3)-CH_3 + Br^\bullet \to X + HBr$
Identify the structure of the major product $X$.

Which of the following products is obtained by the controlled oxidation of methane in the presence of copper catalyst at $523 \ K$ and $100 \ atm$?

An alkane forms isomers if the number of carbon atoms is at least