which of the following salt does not get hydrolysed in water?

Options

A. `KCIO_(4)`
B. `NH_(4)CI`
C. `CH_(3)COONa`
D. None of these

Answer

To determine which of the following salts does not get hydrolyzed in water, we need to analyze the nature of each salt in relation to the acids and bases from which they are derived.

### Step-by-Step Solution:

1. **Identify the Salts**: We need to consider the salts given in the options. The salts mentioned in the question are KClO4, NH4Cl, and CH3COONa.

2. **Understand Hydrolysis**: Hydrolysis occurs when a salt reacts with water to form an acidic or basic solution. This typically happens when a salt is derived from a weak acid or a weak base.

3. **Analyze KClO4**:
- KClO4 is derived from KOH (a strong base) and HClO4 (a strong acid).
- Since both the acid and base are strong, KClO4 does not hydrolyze in water.
- **Conclusion**: KClO4 does not get hydrolyzed.

4. **Analyze NH4Cl**:
- NH4Cl is derived from NH4OH (a weak base) and HCl (a strong acid).
- NH4Cl will hydrolyze in water to form NH4+ and Cl- ions, leading to the formation of NH4OH, which is a weak base.
- **Conclusion**: NH4Cl does get hydrolyzed.

5. **Analyze CH3COONa**:
- CH3COONa is derived from CH3COOH (a weak acid) and NaOH (a strong base).
- CH3COONa will hydrolyze in water to produce CH3COO- and Na+, resulting in a basic solution due to the weak acid.
- **Conclusion**: CH3COONa does get hydrolyzed.

6. **Final Conclusion**: Among the given salts, KClO4 is the only salt that does not get hydrolyzed in water.

### Answer:
**KClO4 does not get hydrolyzed in water.**

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