Question

Which of the following are uses of methane?

• A. Manufacturing of hydrogen gas
• B. Domestic fuel in the form of CNG
• C. Raw material for industries
• D. Manufacturing soft drinks

Answer 1

Answer: (A), (B), (C)

The correct options are
A Manufacturing of hydrogen gas
B Domestic fuel in the form of CNG
C Raw material for industries

• Methane $\left(C{H}_4\right)$ is a highly combustible gas and releases a large amount of heat energy when burnt, leaving no residue as shown below-

${\mathrm{CH}}_4\left(g\right)+2O_2\left(g\right)\underset{}{\overset{\Delta }{\to }}{\mathrm{CO}}_2\left(g\right)+2H_{2}O\left(g\right)\mathrm{Methane}\mathrm{Oxygen}\mathrm{Carbon}\mathrm{Water}\mathrm{dioxide}$
So, it is widely used as a fuel in the form of compressed natural gas (CNG), biogas, etc.

• It is used as a raw material in various industries. For example, petroleum refining, food processing, etc.
• It is also used in the preparation of hydrogen gas as shown below.

${\mathrm{CH}}_4\left(g\right)+H_{2}O\left(g\right)\stackrel{\Delta }{\to }\mathrm{CO}\left(g\right)+3H_2\left(g\right)\mathrm{Methane}\mathrm{Water}\mathrm{Carbon}\mathrm{Hydrogen}\mathrm{monoxide}$

• However, cold drinks contain carbonic acid which is produced by dissolving carbon dioxide $\left(C{O}_2\right)$ gas in water.