Question

Butane can also be obtained by thermal decomposition of higher hydrocarbons.

• A. True
• B. False

Answer 1

The correct option is A True

Butane, the main consituent of LPG, is usually separated from uncondensed gases obtained from petroleum. But it can also be obtained by thermal cracking (decomposition) of higher hydrocarbons like heptane. The reaction for the same is given below:

${\text{C}}_7{\text{H}}_{16}\text{(g)}$$\Rightarrow$${\text{C}}_4{\text{H}}_{10}\text{(g)}$ + ${\text{C}}_3{\text{H}}_6\text{(g)}$