Which of the following statements are correct regarding metallurgy of iron ?

Options

A. Coke reduces `FeO` to `Fe` above `1073 K`
B. `CO` reduces `Fe_(2)O_(3)` to `FeO` below `1073 K`
C. Coke reduces `Fe_(2)O_(3)` to `FeO` above `1073 K`
D. Coke reduces `Fe_(2)O_(3)` to `FeO` above `1073 K`.

Answer

To determine which statements are correct regarding the metallurgy of iron, we can analyze the reduction processes of iron oxides using coke and carbon monoxide.

### Step 1: Understand the Reduction of Iron Oxides
- Iron exists primarily in two forms of oxides: FeO (iron(II) oxide) and Fe2O3 (iron(III) oxide).
- The reduction of these oxides involves converting them into metallic iron using reducing agents such as coke (carbon) or carbon monoxide.

### Step 2: Analyze the Temperature Conditions
- The reduction of FeO to iron using coke occurs at temperatures above 1073 Kelvin.
- The reduction of Fe2O3 to Fe can occur at lower temperatures, specifically below 1073 Kelvin, when using carbon monoxide as the reducing agent.

### Step 3: Evaluate the Statements
1. **Statement 1**: "Coke reduces iron oxide FeO above 1073 Kelvin."
- This statement is **correct** because FeO is reduced to iron at temperatures above 1073 Kelvin using coke.

2. **Statement 2**: "Carbon monoxide reduces Fe2O3 to Fe below 1073 Kelvin."
- This statement is also **correct** because carbon monoxide can effectively reduce Fe2O3 to iron at temperatures below 1073 Kelvin.

3. **Statement 3**: "Coke reduces Fe2O3 to Fe above 1073 Kelvin."
- This statement is **correct** as well, since coke can reduce Fe2O3 to iron at temperatures above 1073 Kelvin.

### Conclusion
All the provided statements regarding the metallurgy of iron are correct:
- Coke reduces FeO above 1073 Kelvin.
- Carbon monoxide reduces Fe2O3 to Fe below 1073 Kelvin.
- Coke can also reduce Fe2O3 to Fe above 1073 Kelvin.

### Final Answer
All statements regarding the metallurgy of iron are correct.

---