Chemistry 0620 · IGCSE · Extraction of metals

Extraction of metals — practice question

Iron is converted into steel using basic oxides and oxygen. Which statement is incorrect?

  • ACarbon is converted into carbon dioxide.
  • BSilicon is converted into silicon(IV) oxide.
  • CThe basic oxides react with acidic impurities to form slag.
  • DThe oxygen reacts with the iron to produce hematite.

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