How do you distinguish between `Br^(ɵ)` and `NO_(3)^(ɵ)` ions?

Explanation

To distinguish between bromide ions (Br⁻) and nitrate ions (NO₃⁻), we can perform two specific tests:

### Step-by-Step Solution:

1. **Copper Turning Test for Nitrate Ions:**
- Take a small amount of the sample suspected to contain nitrate ions.
- Add concentrated sulfuric acid (H₂SO₄) to the sample.
- Introduce copper turnings into the mixture.
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