Question

Which of the following is a component of bio-gas?

• A. Methane
• B. L P G
• C. C N G
• D. Hydrogen sulphide

Answer 1

Answer: (A), (D)

Hydrogen sulphide

The correct option is A.

Explanation for correct option :

1. Bio-gas is formed by decomposition of organic matter with the action of bacteria in absence of oxygen.
2. The components of bio-gas are methane 50-70%, carbon dioxide 25-50%, nitrogen 0-10% and hydrogen 0-1%.
3. Hence, we can say methane is the component of bio-gas.
4. Bio-gas also contains a very small amount of hydrogen sulphide.

Explanation of incorrect options:

Option B and C:

1. LPG, CNG are not the components of Bio-gas.

Final answer: Methane and hydrogen sulphide is a component of bio-gas.