Zinc is obtained from zinc blende by roasting it in air so that zinc oxide is formed. The zinc oxide is then heated with carbon to produce zinc. The equations for the reactions are shown. 1. $2\text{ZnS} + 3\text{O}_2 \rightarrow 2\text{ZnO} + 2\text{SO}_2$ 2. $\text{ZnO} + \text{C} \rightarrow \text{Zn} + \text{CO}$ Which statement concerning reactions 1 and 2 is not correct?
- AIn reaction 1 the oxidation state of sulfur increases and it is oxidised.
- BIn reaction 1 the oxidation state of zinc increases and it is oxidised.
- CIn reaction 2 the carbon acts as a reducing agent and it is oxidised.
- DIn reaction 2 the oxidation state of zinc decreases and it is reduced.