Steel is made from the iron obtained in a blast furnace. Which statement about the production of iron and steel is incorrect?
- AIn a blast furnace, acidic impurities are removed by adding a basic oxide.
- BIn a blast furnace, calcium oxide is added to remove basic impurities.
- COxygen is passed into the molten iron from a blast furnace to remove carbon impurities.
- DThe molten iron from a blast furnace contains traces of other elements such as phosphorus.