Question

Biogas is an excellent fuel. Justify the statement by giving two reasons.Mention the constituents of biogas.

Answer 1

Biogas is an excellent fuel because:
1.Biogas is a clean fuel.Biogas is an eco friendly fuel and did not create pollution.
2.Biogas will never run out. Animals and plant wastes are used to make biogas.So,it will long last.

Constituents of biogas are:
1.Methane
2.Carbon dioxide
3.Nitrogen
4.Hydrogen
5.Hydrogen disulphide.

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Answer 2

Biogas is one of the types of biofuels which is naturally produced by the decomposition of organic wastes.

 The Biogas is an excellent fuel.

Two reasons are:

1. Biogas is a ‘renewable source’ of energy and its ‘calorific value’ is high.

2. It's a clean & secure source of energy which reduces soil & water pollution & prevents health problems.

 Compositions of Biogas are:  

Hydrogen (H2)0-1%

Carbon dioxide (CO2) 30-50%

Nitrogen (N2)1-10%

Methane (CH4)50-75%

Hydrogen Sulfide (H2S)0-1%

Oxygen (O2) 0-1%

Carbon Monoxide (CO)0-1%

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