In gobar gas, the maximum amouts is that of
Or
Biogas produced through anaerobic fermentation of organic material is primarily

Options

A. Butane
B. Methane
C. propane
D. Carbon dioxide

Answer

**Step-by-Step Solution:**

1. **Understanding Biogas:** Biogas, also known as gobar gas, is a mixture of gases produced by the anaerobic fermentation of organic materials. It is primarily generated through the breakdown of organic matter in the absence of oxygen.

2. **Composition of Biogas:** The main components of biogas include methane (CH₄) and carbon dioxide (CO₂). Other gases may be present in trace amounts, but methane and carbon dioxide are the primary constituents.

3. **Role of Methanogens:** The anaerobic bacteria, particularly methanogens, play a crucial role in the production of biogas. These bacteria facilitate the breakdown of organic matter, leading to the generation of methane as a byproduct.

4. **Gas Collection in Biogas Plants:** In biogas plants, organic materials such as cow dung and water are fed into a digester. As the organic matter decomposes, methane and carbon dioxide are produced and collected in a gas chamber, while the remaining solid waste is referred to as slurry or sludge.

5. **Dominance of Methane:** Among the gases produced, methane is the most abundant component in biogas. Although carbon dioxide is also present, it is in lesser quantities compared to methane.

6. **Conclusion:** Therefore, the maximum amount of gas in gobar gas or biogas produced through anaerobic fermentation is primarily methane.

**Final Answer:** Methane

---