Which one of the following salts when dissolved in water makes the solution basic ?

Options

A. sodium chloride
B. chopper suplhate
C. ferric chloride
D. sodium acetate

Explanation

To determine which salt makes the solution basic when dissolved in water, we need to analyze the nature of the salts provided in the options.

1. **Understanding Salts**: Salts are formed from the neutralization reaction between acids and bases. The resulting solution's pH depends on the strength of the acid and base from which the salt is derived.

2. **Analyzing the Given Salts**:
- **Sodium Chloride (NaCl)**: This salt is formed from a strong acid (HCl) and a strong base (NaOH). When dissolved in water, it does not affect the pH significantly and remains neutral.
- **Copper Sulfate (CuSO4)**: This salt is formed from a weak base (Cu(OH)2) and a strong acid (H2SO4). When dissolved in water, it tends to produce an acidic solution.
- **Ferric Chloride (FeCl3)**: This salt is formed from a weak base (Fe(OH)3) and a strong acid (HCl). It also produces an acidic solution when dissolved in water.
- **Sodium Bicarbonate (NaHCO3)**: This salt is formed from a weak acid (H2CO3) and a strong base (NaOH). It tends to produce a basic solution when dissolved in water.

3. **Conclusion**: Among the salts listed, Sodium Bicarbonate (NaHCO3) is the one that, when dissolved in water, makes the solution basic.

### Final Answer:
The salt that makes the solution basic when dissolved in water is **Sodium Bicarbonate (NaHCO3)**.