Which of the following reactions takes place at higher temperature range (900 K-1500 K) in blast furnace ?

Options

A. `3Fe_(2)O_(3) + CO to 2Fe_(3)O_(4) + CO_(2)`
B. `FeO+CO to Fe + CO_(2)`
C. `Fe_(3)O_(4) +4CO to 2Fe + 4CO_(2)`
D. `Fe_(2)O_(3) + CO to 2FeO + CO_(2)`

Explanation

To determine which reaction takes place at a higher temperature range (900 K - 1500 K) in a blast furnace, we can analyze the reactions involved in the process of iron extraction.

### Step-by-Step Solution:

1. **Understanding the Blast Furnace Process**:
- The blast furnace is used for the extraction of iron from its ores, primarily iron oxides like Fe2O3 and Fe3O4. The process involves various reactions occurring at different temperature ranges.

2. **Identifying Temperature Ranges**:
- At lower temperatures (around 500 K - 600 K), reactions primarily involve the reduction of Fe3O4 and Fe2O3 by carbon monoxide (CO).
- At higher temperatures (900 K - 1500 K), different reactions occur, including the reduction of FeO by carbon monoxide.

3. **Key Reactions at Higher Temperatures**:
- One significant reaction in the temperature range of 900 K - 1500 K is:
\[ \text{FeO} + \text{CO} \rightarrow \text{Fe} + \text{CO}_2 \]
- This reaction indicates the reduction of iron(II) oxide (FeO) to iron (Fe) using carbon monoxide (CO).

4. **Other Reactions**:
- Another reaction that occurs in this temperature range is:
\[ \text{C} + \text{O}_2 \rightarrow \text{CO} \]
- This reaction produces carbon monoxide, which is crucial for the reduction of iron oxides.

5. **Conclusion**:
- Based on the analysis, the reactions that occur at the higher temperature range of 900 K - 1500 K in the blast furnace are primarily the reduction of FeO by CO and the formation of CO from carbon and oxygen.
- Therefore, the correct option for the reaction taking place at this temperature range is **Option B**.