Which of the following is a major combustible component of biogas?

Explanation:

Methane (CH₄) is the primary combustible component of biogas. Biogas is a mixture of gases produced through the anaerobic digestion of organic materials. The major components of biogas typically include:

1. Methane (CH₄): The most significant and combustible component, contributing to biogas's energy content.

2. Carbon dioxide (CO₂): Present in biogas but non-combustible.

3. Hydrogen sulfide (H₂S): Present in trace amounts, it can be corrosive but is not the primary combustible component.

Additional Information

1. Carbon dioxide (CO₂): Non-combustible and often makes up a large portion of biogas, but it does not contribute to the combustion properties of biogas.

2. Hydrogen sulphide (H₂S): While it can be harmful and corrosive, H₂S is not a major combustible component of biogas.

3. Butane (C₄H₁₀): Not a typical component of biogas, as biogas primarily consists of methane, not hydrocarbons like butane.