Question

Fuel which contains $90\%$ methane is-

• A. Oil gas
• B. Biogas
• C. Liquified petroleum gas
• D. Natural gas

Answer 1

The correct option is D

Natural gas

A substance which can generate energy on its own is known as fuel.

Explanation for correct option:

D: Natural gas is a naturally occurring mixture of gaseous hydrocarbon. It consists $90\%$ of methane (${\mathrm{CH}}_4$), $10\%$ of Ethane (${\mathrm{C}}_2{\mathrm{H}}_6$) and Propane (${\mathrm{C}}_3{\mathrm{H}}_8$).

Explanation for incorrect options:

A: Oil gas is derived from the mixture of oils which are obtained from minerals.

B: Biogas is generated by the breakdown of organic materials like animal and plant waste.

C: Liquified petroleum gas is synthesized by the liquification of Isobutane under high pressure. In the liquid form, Isobutane is supplied in the cylinder and is commonly determined as LPG.

Final answer:

Hence, option (D) is correct.