The four equations below are given. 1 $\text{C} + \text{O}_2 \rightarrow \text{CO}_2$ 2 $\text{CaCO}_3 \rightarrow \text{CaO} + \text{CO}_2$ 3 $\text{SiO}_2 + 2\text{CO} \rightarrow \text{Si} + 2\text{CO}_2$ 4 $\text{Fe}_2\text{O}_3 + 3\text{CO} \rightarrow 2\text{Fe} + 3\text{CO}_2$ Which equations show reactions that occur during the extraction of iron from hematite?
- A1, 2 and 3
- B1, 2 and 4
- C2, 3 and 4
- D3 and 4 only