White ppt. of `PbSO_(4)` is soluble in

Options

A. ammonium acetate `(6M)`
B. dilute `HCl`
C. dilute `H_(2)SO_(4)`
D. none

Answer

To determine the solubility of the white precipitate of lead sulfate (PbSO₄), we need to analyze the given options.

### Step-by-Step Solution:

1. **Identify the Compound**:
The compound in question is lead sulfate, which has the chemical formula PbSO₄. It is known to form a white precipitate.

2. **Examine the Options**:
We have four options to consider:
- Ammonium acetate (CH₃COONH₄)
- Dilute HCl (hydrochloric acid)
- Dilute H₂SO₄ (sulfuric acid)
- None

3. **Research Solubility**:
Lead sulfate is generally insoluble in water and most common acids. However, it is known to be soluble in certain ammonium salts.

4. **Evaluate Each Option**:
- **Ammonium Acetate**: Lead sulfate is soluble in ammonium acetate. This is because the acetate ion can help to form soluble complexes with lead ions.
- **Dilute HCl**: Lead sulfate is not soluble in dilute hydrochloric acid.
- **Dilute H₂SO₄**: Lead sulfate is not soluble in dilute sulfuric acid, as it is a sulfate itself.
- **None**: This option would imply that lead sulfate is not soluble in any of the given solutions, which is incorrect.

5. **Conclusion**:
The white precipitate of PbSO₄ is soluble in ammonium acetate.

### Final Answer:
The white precipitate of PbSO₄ is soluble in **ammonium acetate (CH₃COONH₄)**.