Which of thef following salts undergo anionic hydrolysis?

Options

A. `ZnSO_(4)`
B. `NH_(4)Cl`
C. `AlCl_(3)`
D. `NaHCO_(3)`

Explanation

To determine which of the given salts undergo anionic hydrolysis, we need to analyze the nature of the acids and bases from which these salts are derived. Here’s a step-by-step solution:

### Step 1: Understand the Types of Hydrolysis
- **Cationic Hydrolysis** occurs when a salt is formed from a strong acid and a weak base. In this case, the cation from the weak base will hydrolyze.
- **Anionic Hydrolysis** occurs when a salt is formed from a weak acid and a strong base. Here, the anion from the weak acid will hydrolyze.

### Step 2: Identify the Salts
Let’s analyze the salts mentioned in the question:
1. **Zinc Sulfate (ZnSO4)**
2. **Ammonium Chloride (NH4Cl)**
3. **Aluminum Chloride (AlCl3)**
4. **Sodium Bicarbonate (NaHCO3)**

### Step 3: Determine the Nature of Each Salt
- **Zinc Sulfate (ZnSO4)**:
- Derived from H2SO4 (strong acid) and Zn(OH)2 (weak base).
- This will undergo **cationic hydrolysis**.

- **Ammonium Chloride (NH4Cl)**:
- Derived from HCl (strong acid) and NH4OH (weak base).
- This will also undergo **cationic hydrolysis**.

- **Aluminum Chloride (AlCl3)**:
- Derived from HCl (strong acid) and Al(OH)3 (weak base).
- This will undergo **cationic hydrolysis** as well.

- **Sodium Bicarbonate (NaHCO3)**:
- Derived from NaOH (strong base) and H2CO3 (weak acid).
- This will undergo **anionic hydrolysis**.

### Step 4: Conclusion
Among the salts analyzed, **Sodium Bicarbonate (NaHCO3)** is the only salt that undergoes anionic hydrolysis.

### Final Answer
**Sodium Bicarbonate (NaHCO3)** undergoes anionic hydrolysis.

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