Why is only acetic acid employed for dissolving the group V ppt.?

Explanation

### Step-by-Step Solution:

1. **Understanding Group V Precipitate**: In qualitative inorganic analysis, Group V cations typically include barium (Ba²⁺), strontium (Sr²⁺), and calcium (Ca²⁺). These cations form precipitates that need to be dissolved for further analysis.

2. **Choice of Acid**: Acetic acid (CH₃COOH) is specifically chosen for dissolving Group V precipitates. This is because it does not lead to the formation of insoluble salts with the Group V cations.

3. **Problems with Other Acids**:
- **Sulfuric Acid (H₂SO₄)**: If sulfuric acid is used, it can lead to the precipitation of sulfates (e.g., barium sulfate, strontium sulfate, and calcium sulfate). These sulfates are insoluble and would hinder the analysis of the cations.
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