Which of the following solution gives precipitate with `Pb(NO_(3))_(2)` but not with `Ba(NO_(3))_(2)`

Options

A. Sodium chloride
B. Sodium sulphite
C. Sodium nitrate
D. Sodium hydrogen phosphate

Explanation

To solve the question of which solution gives a precipitate with lead nitrate (Pb(NO₃)₂) but not with barium nitrate (Ba(NO₃)₂), we will analyze the given options step by step.

### Step-by-Step Solution:

1. **Identify the Compounds:**
- We have the following options: sodium chloride (NaCl), sodium sulphite (Na₂SO₃), sodium nitrate (NaNO₃), and sodium hydrogen phosphate (Na₂HPO₄).

2. **Understand the Reaction with Lead Nitrate:**
- Lead nitrate (Pb(NO₃)₂) can react with chloride ions (Cl⁻) to form lead(II) chloride (PbCl₂).
- The reaction is as follows:
\[ \text{NaCl} + \text{Pb(NO}_3\text{)}_2 \rightarrow \text{PbCl}_2 \downarrow + \text{NaNO}_3 \]
- Lead(II) chloride (PbCl₂) is insoluble in cold water, which means it will precipitate out of the solution.

3. **Understand the Reaction with Barium Nitrate:**
- Barium nitrate (Ba(NO₃)₂) can react with chloride ions (Cl⁻) to form barium chloride (BaCl₂).
- The reaction is as follows:
\[ \text{NaCl} + \text{Ba(NO}_3\text{)}_2 \rightarrow \text{BaCl}_2 + \text{NaNO}_3 \]
- Barium chloride (BaCl₂) is soluble in water, which means it will not precipitate.

4. **Evaluate Other Options:**
- **Sodium Sulphite (Na₂SO₃):**
- When it reacts with lead nitrate, it forms lead(II) sulphite (PbSO₃), which is also insoluble and will precipitate.
- However, it will also react with barium nitrate to form barium sulphite (BaSO₃), which is also insoluble.
- **Sodium Nitrate (NaNO₃):**
- This salt does not produce any precipitate with either lead nitrate or barium nitrate, as both products remain in solution.
- **Sodium Hydrogen Phosphate (Na₂HPO₄):**
- This salt can react with lead nitrate to form lead(II) phosphate (Pb₃(PO₄)₂), which is insoluble, but it will also react with barium nitrate to form barium phosphate (Ba₃(PO₄)₂), which is also insoluble.

5. **Conclusion:**
- The only solution that gives a precipitate with lead nitrate but not with barium nitrate is **sodium chloride (NaCl)**.

### Final Answer:
**Sodium Chloride (NaCl)** gives a precipitate with Pb(NO₃)₂ but not with Ba(NO₃)₂.