`[Co(NH_3)_5SO_4] Br` gives yellow precipitate with `AgNO_3` solution while `[Co(NH_3)_5Br]SO_4` does not why ?

Explanation

To solve the question regarding why `[Co(NH_3)_5SO_4]Br` gives a yellow precipitate with `AgNO_3` while `[Co(NH_3)_5Br]SO_4` does not, we need to analyze the ionization isomers of the coordination compounds involved.

### Step-by-Step Solution:

1. **Identify the Coordination Compounds**:
- The first compound is `[Co(NH_3)_5SO_4]Br`. Here, the sulfate ion (SO₄²⁻) is part of the coordination sphere, and bromide (Br⁻) is a counter ion.
- The second compound is `[Co(NH_3)_5Br]SO₄`. In this case, bromide is part of the coordination sphere, and sulfate is the counter ion.

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