Which of the following is an example of gaseous solution ?

Options

A. Camphor in nitrogen gas
B. Solution of hydrogen in palladium
C. Chloroform mixed with nitrogen gas
D. Both (a) and (c)

Answer

To determine which of the given options is an example of a gaseous solution, we need to analyze each option based on the definitions of solute and solvent in the context of gaseous solutions.

### Step-by-Step Solution:

1. **Understand the Definition of Gaseous Solution**:
- A gaseous solution is a homogeneous mixture where the solvent is in the gaseous state, while the solute can be in solid, liquid, or gaseous state.

2. **Analyze Each Option**:
- **Option A: Camphor in Nitrogen Gas**:
- Camphor is a solid (solute), and nitrogen is a gas (solvent).
- This does not qualify as a gaseous solution because the solute is not in the gaseous state.

- **Option B: Solution of Hydrogen in Palladium**:
- Hydrogen is a gas (solute), and palladium is a solid (solvent).
- This does not qualify as a gaseous solution because the solvent is not in the gaseous state.

- **Option C: Chloroform Mixed with Nitrogen Gas**:
- Chloroform is a liquid (solute), and nitrogen is a gas (solvent).
- This does not qualify as a gaseous solution because the solute is not in the gaseous state.

3. **Conclusion**:
- None of the options provided (A, B, or C) qualify as a gaseous solution based on the definitions provided. Therefore, the answer is that none of the options represent a gaseous solution.

### Final Answer:
None of the options A, B, or C is an example of a gaseous solution.