What is the number of moles of nascent hydrogen required to prepare $1$ mole of methane from iodomethane?

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

In the bromination of isobutane,the relative reactivity rates of $1^oH, 2^oH,$ and $3^oH$ are $1 : 82 : 1600$ respectively. Calculate the percentage yield of products $(a)$ and $(b)$ in the following reaction:
$CH_3-CH(CH_3)-CH_3 (excess) + Br_2 \xrightarrow{hv} (a) CH_3-C(Br)(CH_3)-CH_3 + (b) CH_3-CH(CH_3)-CH_2Br$

Wurtz reaction is $NOT$ possible with which of the following alkyl halides?

Wurtz reaction of bromoethane gives $n$-butane. Sodium salt of $X$ on heating with sodalime also results in $n$-butane. Compound $X$ is

In alkane compounds, the $C - H$ bond length and $H - C - H$ bond angle are respectively: