What are the main constituents of biogas?
[amp_mcq option1=”Methane and sulphur dioxide” option2=”Methane and carbon dioxide” option3=”Methane, hydrogen and nitric oxide” option4=”Methane and nitric oxide” correct=”option2″]
This question was previously asked in
UPSC CDS-2 – 2017
Biogas is produced through the anaerobic digestion of organic matter by microorganisms. Its primary constituents are methane (CH₄), typically making up 50-75% of the volume, and carbon dioxide (CO₂), making up 25-50%. Methane is the main combustible component that gives biogas its value as a fuel.