`[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 isomerism exhibited by the compounds \([Co(NH_3)_5Cl]SO_4\) and \([Co(NH_3)_5SO_4]Cl\), we will analyze the structure and composition of these coordination compounds step by step.

### Step 1: Identify the Coordination Compounds
The two compounds given are:
1. \([Co(NH_3)_5Cl]SO_4\)
2. \([Co(NH_3)_5SO_4]Cl\)

In these compounds, cobalt (Co) is the central metal ion, and the ligands are ammonia (NH₃), chloride (Cl), and sulfate (SO₄).

### Step 2: Analyze the Ligands and Counter Ions
In the first compound, \([Co(NH_3)_5Cl]SO_4\):
- The complex ion is \([Co(NH_3)_5Cl]^+\) and the counter ion is \(SO_4^{2-}\).

In the second compound, \([Co(NH_3)_5SO_4]Cl\):
- The complex ion is \([Co(NH_3)_5SO_4]^+\) and the counter ion is \(Cl^-\).

### Step 3: Determine the Type of Isomerism
Isomerism in coordination compounds can occur in several forms, including:
- **Ionization Isomerism**: This occurs when the composition of the counter ions changes, while the coordination sphere remains the same.
- **Coordination Isomerism**: This occurs when the ligands are arranged differently around the central metal ion.

In this case, we observe that the ligands (Cl and SO₄) are interchanging their positions between the complex ion and the counter ion.

### Step 4: Conclusion
Since the chloride ion and sulfate ion are switching places between the complex and the counter ion, this is an example of **ionization isomerism**.

Thus, the answer is that the given compounds exhibit **ionization isomerism**.

### Final Answer
The compounds \([Co(NH_3)_5Cl]SO_4\) and \([Co(NH_3)_5SO_4]Cl\) exhibit **ionization isomerism**.

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