Q13 / 180 · KCET 2013 · Chemistry
Methane can be converted into ethane by the reactions
- Achlorination followed by the reaction with alcoholic KOH
- Bchlorination followed by the reaction with aqueous $\mathrm{KOH}$
- Correct answerCchlorination followed by Wurtz reaction
- Dchlorination followed by decarboxylation
Solution
The chlorination of methane is carried out by treating it with chlorine in presence of ultraviolet light or by heating the reaction mixture to $520-670 \mathrm{~K}$.
$\underset{\text { methane }}{\mathrm{CH}_{4}}+\mathrm{Cl}_{2} \stackrel{\text { hv or } \Delta}{\longrightarrow} \underset{\text { methyl chloride }}{\mathrm{CH}_{3} \mathrm{Cl}}+\mathrm{HCl}$
This methyl chloride react with metallic $\mathrm{Na}$ in presence of dry ether to form symmetrical alkane the number of carbon atoms (ethane). This reaction is called Wurtz reaction.
Hence, the correct answer is option: 'C'.