The process of `""_(28)^(56)Fe^(2+) to ""_(28)^(56)Fe^(3+)` is appropriately classified as

Options

A. ionisation
B. oxidation
C. reduction
D. nuclear reaction

Explanation

To classify the process of converting \( \text{Fe}^{2+} \) to \( \text{Fe}^{3+} \), we can follow these steps:

### Step 1: Identify the oxidation states
- The oxidation state of iron in \( \text{Fe}^{2+} \) is +2.
- The oxidation state of iron in \( \text{Fe}^{3+} \) is +3.

### Step 2: Determine the change in oxidation state
- The change from +2 to +3 indicates that iron is losing an electron.

### Step 3: Define oxidation and reduction
- **Oxidation** is defined as the loss of electrons.
- **Reduction** is defined as the gain of electrons.

### Step 4: Analyze the process
- Since \( \text{Fe}^{2+} \) is losing an electron to become \( \text{Fe}^{3+} \), this process is classified as oxidation.

### Conclusion
The process of \( \text{Fe}^{2+} \) to \( \text{Fe}^{3+} \) is appropriately classified as **oxidation**.

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