coordination compounds often show various types of isomerism. The isomerism can be categorized in two main types
(a) structural isomerism
(b) stereo or space isomerism Structural isomerism arises due to the difference in structures of coordination-sempounds while stereo or space isomerism arises on account of the different positions and arrangements of ligands (atoms or groups) in space around the metal lonStructural isomerism can be classified in following types (i) tonization isomers- which give different ions in solution, e.g. `[CoBr(NH_(3))_(5)]]SO_(4)` and `[Co(SO_(4))_(5)(NH_(3))_(5)]Br`
Hydrate isomers which differ in `H_(2)O` as ligand or as hydration, e.g. `[Cr(H_(2)O)_(5)]CI_(2)(H_(2)O)]Cl_(2).H_(2)O[CrCl_(2)(H_(2)O)]CI.2H_(2)O`
(iii) Linkage isomers, which differ in atom linked to 'metal atom, e.g. `[CO(NO_(2))(NH_(3))_(5)]^(2+)`and`CO(ONO)(NH_(3))_(6)]^(2+)`
Coordination isomers- which involve interchange of ligands, e.g. `[Co(NH_(3))_(6)] [Cr(CN)_(6)]` and`[Cr(NH_(3))_(6)] [Co(CN)_(6)]`
(v) Coordination position isomerism-which arises in the bridged complexes due to the difference in the attachment of ligands with the metal atoms
QThe pair `[CO(NH_(3))_(5)NO_(3)]SO_(4)` and `[CO(NH_(3))SO_(4)]NO_(3)` will exhibit

Options

A. hydrate isomerism
B. linkage isomerism
C. jonization isomerism
D. coordinate isomerism

Answer

To determine the type of isomerism exhibited by the coordination compounds `[Co(NH₃)₅NO₃]SO₄` and `[Co(NH₃)₅SO₄]NO₃`, we will analyze the structure and the ions produced when these compounds are dissolved in solution.

### Step 1: Identify the Compounds
We have two coordination compounds:
1. `[Co(NH₃)₅NO₃]SO₄`
2. `[Co(NH₃)₅SO₄]NO₃`

### Step 2: Analyze the Dissociation of Each Compound
When these compounds are dissolved in water, they dissociate into their respective ions.

- For the first compound `[Co(NH₃)₅NO₃]SO₄`, the dissociation will yield:
- Cation: `[Co(NH₃)₅NO₃]²⁺`
- Anion: `SO₄²⁻`

- For the second compound `[Co(NH₃)₅SO₄]NO₃`, the dissociation will yield:
- Cation: `[Co(NH₃)₅SO₄]²⁺`
- Anion: `NO₃⁻`

### Step 3: Compare the Ions Produced
Now, we compare the ions produced from both compounds:
- The first compound produces `SO₄²⁻` and the cation `[Co(NH₃)₅NO₃]²⁺`.
- The second compound produces `NO₃⁻` and the cation `[Co(NH₃)₅SO₄]²⁺`.

Since the two compounds produce different ions in solution, they are classified as ionization isomers.

### Conclusion
The pair of compounds `[Co(NH₃)₅NO₃]SO₄` and `[Co(NH₃)₅SO₄]NO₃` exhibit **ionization isomerism**.