Q. Biogas produced by fermentation of manure, sewage, cattle dung, etc predominantly comprises

 1482  187 Delhi UMET/DPMTDelhi UMET/DPMT 2010 Report Error

Solution:

Biogas typically refers to a gas produced by the biological breakdown of organic matter in the absence of oxygen. The typical composition of biogas given below
Compound Percentage
Methane 50-75
Carbon dioxide 25-50
Nitrogen 0-10
Hydrogen 0-1
Hydrogen sulphide 0-3
Oxygen 0-2