A student watched what happened when sodium chloride and sodium iodide were reacted separately with concentrated sulfuric acid and with concentrated phosphoric acid. The observations are shown in the table. Which conclusion can be drawn from these observations?
- AConcentrated phosphoric acid is a stronger oxidising agent than concentrated sulfuric acid.
- BConcentrated phosphoric acid is a stronger oxidising agent than iodine.
- CConcentrated sulfuric acid is a stronger oxidising agent than chlorine.
- DConcentrated sulfuric acid is a stronger oxidising agent than iodine.