Question

Biogas is a mixture of?
A. Methane + ${ CO }_{ 2 }$
B. Methane +$ { CO }$
C. Ethane + ${ CO }_{ 2 }$
D. Ethane + ${ CO }$

Answer 1

Hint: You should know that Biogas can be produced from raw materials such as agricultural waste, manure, municipal waste, plant, and material or food waste. Now try to figure out the answer by yourself.

Complete step by step answer:
Biogas typically refers to a mixture of different gases produced by the breakdown of organic matter in the absence of oxygen. In large biogas plants, the remains of the plants are decomposed by bacteria in an airtight tank. As we know the Earth has an almost unlimited supply of plant remains, which makes biogas an important source of energy from renewable raw materials.

Let us see the mixture of biogas.
Basically, biogas is a mixture of various gases and chemicals. It majorly consists of Methane ${ CH }_{ 4 }$ which is about 60-65% and carbon dioxide ${ CO }_{ 2 }$ which is about 30-35%. Apart from this biogas also consists of water vapour which is about 4-5% and traces of hydrogen sulphide ${ H }_{ 2 }S$ and oxidized sulphur compounds.
Therefore, biogas is a mixture of Methane + ${ CO }_{ 2 }$.

Hence, option A is the required answer.

Note: As you all know how much our environment is already polluted, but biogas is a renewable, as well as a clean source of energy. It is non-polluting and actually reduces a greenhouse emission which means it reduces greenhouse effect.