How will you distinguish between sulphite and sulphate ions?

Explanation

To distinguish between sulfite (SO3²⁻) and sulfate (SO4²⁻) ions, we can perform the following tests:

### Step-by-Step Solution:

1. **Barium Chloride Test**:
- **Procedure**: Add a few drops of barium chloride (BaCl2) solution to the sample containing the ions.
- **Observation**:
- If sulfite ions are present, a white precipitate of barium sulfite (BaSO3) will form, which is soluble in concentrated hydrochloric acid (HCl).
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