Producer gas is used for

Options

A. Manufactrure of ammonia
B. Industrial fuel
C. Running certain engines
D. All the above

Answer

**Step-by-Step Solution:**

1. **Understanding Producer Gas**:
- Producer gas is a type of fuel gas that is produced from the gasification of carbon-containing materials like coal or anthracite.

2. **Composition of Producer Gas**:
- It primarily consists of carbon monoxide (CO) and nitrogen (N2).

3. **Toxicity of Carbon Monoxide**:
- Carbon monoxide is known to be toxic, which limits the applications of producer gas.

4. **Applications of Producer Gas**:
- The main uses of producer gas include:
- As a fuel for running certain engines.
- It can also be used in the manufacture of ammonia and as an industrial fuel, but its most common and practical application is in engines.

5. **Choosing the Correct Option**:
- Given the options:
- Manufacture of ammonia
- Industrial fuel
- Running certain engines
- All of the above
- Since producer gas is primarily used for running certain engines, the correct answer is option 3: "running certain engines."

**Final Answer**: Producer gas is primarily used for running certain engines.

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