The biogas used for cooking is a mixture of which of the following?

A. Carbon dioxide and oxygen

B. Isobutane and propane

C. Methane and carbon monoxide

D. Methane and carbon dioxide

Answer: Option D

Solution(By Examveda Team)

Biogas is essentially a mixture of Methane (CH₄, around 55-75%) but also contains Carbon Dioxide (CO₂), around 25-30%), varying quantities of Water (H₂O) and Hydrogen Sulphide (H₂S). Other compounds can also be found, especially in waste dump biogas: Ammonia (NH₃), Hydrogen (H₂), Nitrogen (N₂) and Carbon Monoxide (CO). Methane is the valuable component under the aspect of using biogas fuel.