`N_(2` is ________ in KOH solution while `CO_(2)` is _________.

Answer

To solve the question, we need to determine the solubility of nitrogen gas (N₂) and carbon dioxide (CO₂) in potassium hydroxide (KOH) solution.

### Step-by-Step Solution:

1. **Identify the substances**: We have two gases to consider: nitrogen (N₂) and carbon dioxide (CO₂).

2. **Check solubility of N₂ in KOH**:
- Nitrogen gas (N₂) is known to be insoluble in water and also in KOH solution.
- There is no significant reaction between N₂ and KOH, meaning N₂ does not dissolve in KOH.

3. **Check solubility of CO₂ in KOH**:
- Carbon dioxide (CO₂), on the other hand, is soluble in water and reacts with KOH.
- When CO₂ dissolves in KOH, it forms potassium carbonate (K₂CO₃) and water (H₂O) through a chemical reaction:
\[ CO₂ + 2KOH \rightarrow K₂CO₃ + H₂O \]
- This indicates that CO₂ is soluble in KOH.

4. **Fill in the blanks**:
- Based on our findings, we can fill in the blanks:
- N₂ is **insoluble** in KOH solution.
- CO₂ is **soluble** in KOH solution.

### Final Answer:
N₂ is **insoluble** in KOH solution while CO₂ is **soluble**.

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