Iron is obtained from its ore in a blast furnace. The equations for four separate reactions are given below. 1 $4\text{Fe} + 3\text{CO}_2 \rightarrow 2\text{Fe}_2\text{O}_3 + 3\text{C}$ 2 $\text{CO}_2 \rightarrow \text{C} + \text{O}_2$ 3 $\text{CO}_2 + \text{C} \rightarrow 2\text{CO}$ 4 $\text{Fe}_2\text{O}_3 + 3\text{CO} \rightarrow 2\text{Fe} + 3\text{CO}_2$ Which equations show reactions that take place in the blast furnace?
- A1 and 2 only
- B1 and 3 only
- C2 and 3 only
- D3 and 4 only