Wood gas is used as

Options

A. Fuel gas
B. Source of alcohol
C. Source of oil
D. Source of ammonia

Answer

**Step-by-Step Solution:**

1. **Understanding Wood Gas**:
- Wood gas is a type of gas that is produced from the gasification of wood. It is primarily composed of various gases, making it a fuel source.

2. **Composition of Wood Gas**:
- The main components of wood gas include approximately 50% nitrogen, 20% carbon monoxide, and 18% hydrogen. This composition indicates that wood gas is primarily a fuel gas.

3. **Applications of Wood Gas**:
- Wood gas is used mainly as a fuel for domestic purposes. It can be utilized in furnaces and stoves for heating and cooking.

4. **Identifying the Correct Option**:
- Given the options provided (fuel gas, source of alcohol, source of oil, source of ammonia), the most appropriate use of wood gas is as a fuel gas.

5. **Final Conclusion**:
- Therefore, the answer to the question "Wood gas is used as" is **fuel gas**.

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