If concentrated sulfuric acid is added to solid sodium chloride, $\text{HCl}$ is produced, whereas $\text{Cl}_2$ is not. If concentrated sulfuric acid is added to solid sodium iodide, $\text{I}_2$ is produced. Which statement accounts for these results?
- ASulfuric acid is an oxidising agent and chloride ions are more easily oxidised than iodide ions.
- BSulfuric acid is an oxidising agent and iodide ions are more easily oxidised than chloride ions.
- CSulfuric acid is a reducing agent and chloride ions are more easily reduced than iodide ions.
- DSulfuric acid is a reducing agent and iodide ions are more easily reduced than chloride ions.