In the reaction, `4Fe +3O_2 to 4Fe^(3+) + 6O_2^(-)`
Which of the following statements is incorrect?

Options

A. It is redox reaction
B. Metallic Iron is a reducing agent
C. `Fe^(3+)` is an oxidising agent
D. Metallic Iron is reduced to `Fe^(3+)`

Explanation

To determine which statement is incorrect regarding the reaction \(4Fe + 3O_2 \rightarrow 4Fe^{3+} + 6O^{2-}\), we will analyze each option step by step.

### Step 1: Identify the Oxidation States
- In the reactants:
- Iron (Fe) is in the elemental state, so its oxidation state is 0.
- Oxygen (O) in \(O_2\) is also in the elemental state, so its oxidation state is 0.

- In the products:
- The oxidation state of iron in \(Fe^{3+}\) is +3.
- The oxidation state of oxygen in \(O^{2-}\) is -2.

### Step 2: Determine Oxidation and Reduction
- **Oxidation**: An increase in oxidation state indicates oxidation. Here, iron goes from 0 to +3, meaning it is oxidized.
- **Reduction**: A decrease in oxidation state indicates reduction. Oxygen goes from 0 to -2, meaning it is reduced.

### Step 3: Identify the Reducing and Oxidizing Agents
- The reducing agent is the species that gets oxidized. Since iron (Fe) is oxidized to \(Fe^{3+}\), it is the reducing agent.
- The oxidizing agent is the species that gets reduced. Since oxygen is reduced from \(O_2\) to \(O^{2-}\), it is the oxidizing agent.

### Step 4: Analyze Each Statement
- **Option A**: "It is a redox reaction."
- This is correct because there is both oxidation (Fe to \(Fe^{3+}\)) and reduction (O to \(O^{2-}\)).

- **Option B**: "Metallic iron is the reducing agent."
- This is correct because metallic iron is oxidized, thus acting as the reducing agent.

- **Option C**: "Fe\(^{3+}\) ion is an oxidizing agent."
- This is correct because \(Fe^{3+}\) can accept electrons, thus acting as an oxidizing agent.

- **Option D**: "Metallic iron is reduced to Fe\(^{3+}\) ion."
- This is incorrect because metallic iron is not reduced; it is oxidized to \(Fe^{3+}\).

### Conclusion
The incorrect statement is **Option D**: "Metallic iron is reduced to Fe\(^{3+}\) ion."