Which among the following is the main constituent of Biogas?
Which among the following is the main constituent of Biogas?
[A]Methane
[B]Propane
[C]Butane
[D]Ethane
Methane
Biogas comprises primarily methane (CH4) and carbon dioxide (CO2) and may have small amounts of hydrogen sulphide (H2S), moisture and siloxanes.