`[CoNH_(3))_(5)CI]SO_(4)`and `[Co(NH_(3))_(5)SO_(4)]`CI are

Options

A. Hydrate isomers
B. Ionisation isomers
C. Coordination isomers
D. Linkage isomers

Answer

To solve the question regarding the coordination compounds `[Co(NH₃)₅Cl]SO₄` and `[Co(NH₃)₅SO₄]Cl`, we need to analyze the differences between these two compounds and identify the type of isomerism they exhibit.

### Step-by-Step Solution:

1. **Identify the Components of Each Compound**:
- For `[Co(NH₃)₅Cl]SO₄`:
- The complex cation is `[Co(NH₃)₅Cl]²⁺`.
- The sulfate ion (SO₄²⁻) is the counter ion.
- For `[Co(NH₃)₅SO₄]Cl`:
- The complex cation is `[Co(NH₃)₅SO₄]⁺`.
- The chloride ion (Cl⁻) is the counter ion.

2. **Dissociation of Each Compound**:
- When `[Co(NH₃)₅Cl]SO₄` dissociates, it produces:
- `[Co(NH₃)₅Cl]²⁺` and `SO₄²⁻`.
- When `[Co(NH₃)₅SO₄]Cl` dissociates, it produces:
- `[Co(NH₃)₅SO₄]⁺` and `Cl⁻`.

3. **Comparison of Ions Produced**:
- The ions produced from the first compound are different from those produced from the second compound:
- From the first: `[Co(NH₃)₅Cl]²⁺` and `SO₄²⁻`.
- From the second: `[Co(NH₃)₅SO₄]⁺` and `Cl⁻`.

4. **Determine the Type of Isomerism**:
- Since the molecular formulas of the two compounds are the same, but the ligands and counter ions are different, this type of isomerism is classified as **anionization isomerism** (or anionic isomerism).
- In anionization isomers, the positions of the ligands and counter ions are interchanged.

5. **Conclusion**:
- The two compounds `[Co(NH₃)₅Cl]SO₄` and `[Co(NH₃)₅SO₄]Cl` are anionic isomers of each other.

### Final Answer:
The compounds `[Co(NH₃)₅Cl]SO₄` and `[Co(NH₃)₅SO₄]Cl` are **anionization isomers**.