Q348
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
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
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.