Which of the following is a supporter of combustion?

Options

A. Cooking gas
B. Nitrogen gas
C. Oxygen gas
D. Producer gas

Answer

To solve the question "Which of the following is a supporter of combustion?", we need to understand the concept of combustion and the role of different gases in this process.

### Step-by-Step Solution:

1. **Understand Combustion**:
- Combustion is a chemical process in which a substance reacts rapidly with oxygen and releases energy in the form of heat and light.

2. **Identify the Options**:
- The options given are:
1. Cooking gas
2. Nitrogen gas
3. Oxygen gas
4. Producer gas

3. **Evaluate Each Option**:
- **Cooking Gas**: This is primarily composed of hydrocarbons (like propane or butane) and is used as a fuel, not a supporter of combustion.
- **Nitrogen Gas**: This gas does not support combustion; in fact, it is an inert gas that does not react with most substances.
- **Oxygen Gas**: This gas is essential for combustion. It reacts with fuels to produce heat and light.
- **Producer Gas**: This is a mixture of gases, primarily carbon monoxide and hydrogen, which can burn but is not a pure supporter of combustion.

4. **Conclusion**:
- Among the options, oxygen gas is the only one that supports combustion. Therefore, the correct answer is **Option 3: Oxygen gas**.

### Final Answer:
**Oxygen gas is a supporter of combustion.**

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