$A$ mixture of ethyl iodide and $n-$propyl iodide is subjected to Wurtz reaction. The hydrocarbon that will not be formed is

Write the chemical reactions for the preparation of ethane from the following compounds:
$(i)$ Bromo-methane
$(ii)$ Propanoic acid

Which of the following compounds is not obtained when a mixture of $CH_3Br$ and $C_2H_5Br$ is treated with sodium metal in the presence of dry ether?

What is the molar mass of the third homologue of the alkane series?

Choose the chain terminating step.
$(1)$ $H_2 \to H^{\bullet} + H^{\bullet}$
$(2)$ $Br_2 \to Br^{\bullet} + Br^{\bullet}$
$(3)$ $Br^{\bullet} + HBr \to H^{\bullet} + Br_2$
$(4)$ $H^{\bullet} + Br_2 \to HBr + Br^{\bullet}$
$(5)$ $Br^{\bullet} + Br^{\bullet} \to Br_2$

Photochemical chlorination of alkane is initiated by a process of