The gobar gas is a mixture of all of the given gases,except

Options

A. `CH_4`
B. `NO_2`
C. `CO_2`
D. `H_2S`

Answer

**Step-by-Step Solution:**

1. **Understanding Gobar Gas**: Gobar gas, also known as biogas, is primarily produced from the anaerobic digestion of organic matter, such as cow dung. It is a renewable source of energy.

2. **Identifying Major Components**: The major component of gobar gas is methane (CH4), which typically constitutes about 50-70% of the gas mixture. Other significant components include carbon dioxide (CO2), hydrogen (H2), and hydrogen sulfide (H2S).

3. **Analyzing the Options**:
- **Option 1: Methane** - This is a major component of gobar gas.
- **Option 2: Nitrogen Dioxide** - This is not a component of gobar gas.
- **Option 3: Carbon Dioxide** - This is present in gobar gas.
- **Option 4: Hydrogen Sulfide** - This is also present in gobar gas.

4. **Conclusion**: Since nitrogen dioxide is not a component of gobar gas, the correct answer is that gobar gas is a mixture of all the given gases except nitrogen dioxide.

**Final Answer**: Nitrogen Dioxide

---