Sawaal
4
Q:

The main constituent of biogas is

A) Butane B) Methane
C) Hydrogen Sulphide D) Carbondioxide

Answer:   B) Methane



Explanation:

The main constituent of biogas is methane (55-70%), CO2 (30-45%) and some traces of gases such as H2S and ammonia.

Biogas is produced under anaerobic conditions; the process is denominated as anaerobic digestion.

Subject: Chemistry
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