Aqueous solution of KCI is neutral because

Options

A. `K^(+)` undergoes hydrolysis
B. `CI^(-)` undergoes hydrolysis
C. Both `K^(+)` and `CI^(-)` undergo hydrolysis
D. No hydrolysis takes place

Answer

To determine why an aqueous solution of KCl (potassium chloride) is neutral, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Components of KCl**:
- KCl is a salt formed from potassium (K⁺) and chloride (Cl⁻) ions.
- It is derived from the strong acid hydrochloric acid (HCl) and the strong base potassium hydroxide (KOH).

2. **Understand the Nature of the Acid and Base**:
- HCl is a strong acid, meaning it completely dissociates in water to produce H⁺ ions.
- KOH is a strong base, meaning it completely dissociates in water to produce OH⁻ ions.

3. **Determine the pH of the Solution**:
- When KCl is dissolved in water, it dissociates into K⁺ and Cl⁻ ions.
- Since both ions come from a strong acid and a strong base, they do not react with water to produce additional H⁺ or OH⁻ ions.

4. **Evaluate Hydrolysis**:
- Hydrolysis is a reaction where a salt reacts with water to produce an acidic or basic solution.
- In the case of KCl, neither K⁺ nor Cl⁻ undergo hydrolysis because K⁺ is a cation from a strong base and Cl⁻ is an anion from a strong acid.

5. **Conclusion**:
- Since KCl does not undergo hydrolysis, the solution remains neutral, maintaining a pH of 7.

### Final Answer:
An aqueous solution of KCl is neutral because it is formed from a strong acid (HCl) and a strong base (KOH), and does not undergo hydrolysis, resulting in a pH of 7.

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