Producer gas differs from biogas in having

Options

A. Methane
B. Carbon monoxide
C. `CO_(2)`
D. Formed by Fementation

Answer

**Step-by-Step Solution:**

1. **Understanding Producer Gas**: Producer gas is a type of fuel gas that is generated from the gasification of carbon-containing materials such as coke, anthracite, or biomass. It primarily consists of carbon monoxide, hydrogen, and some carbon dioxide.

2. **Understanding Biogas**: Biogas is produced through the anaerobic digestion of organic matter, such as agricultural waste, manure, or food waste. The main components of biogas are methane (CH4) and carbon dioxide (CO2).

3. **Identifying Key Components**:
- Producer gas is characterized by a high concentration of carbon monoxide (CO), which is a toxic gas.
- Biogas, on the other hand, mainly consists of methane, which is a combustible gas but not toxic.

4. **Comparing the Two Gases**:
- The significant difference between producer gas and biogas lies in their composition. Producer gas has a large amount of carbon monoxide, while biogas has a high concentration of methane and carbon dioxide.
- The presence of carbon monoxide in producer gas is what makes it different from biogas.

5. **Conclusion**: Based on the differences in composition, the correct answer to the question "Producer gas differs from biogas in having" is **carbon monoxide**.

**Final Answer**: Producer gas differs from biogas in having **carbon monoxide**.

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