$C_2H_6 \xrightarrow{450^{\circ}C} C_2H_4 + H_2$
The above reaction is called:

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

Which of the following compounds will not be obtained as a product in the above reaction?

$A$ fuel has the same knocking property as a mixture of $70\%$ isooctane and $30\%$ $n$-heptane. The octane number of the fuel is .............

Give reason: Why is the fluorination of alkanes not easy to control?

Which of the following compounds has the highest boiling point?