The earthly impurities in iron ore are removed in the blast furnace by the reaction

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Chemistry WAEC 1989

The earthly impurities in iron ore are removed in the blast furnace by the reaction

  • CO2 + C →2CO
  • Fe2O3 + 3CO →2Fe + 3CO2
  • SiO2 + CaO →CaSiO3 checkmark
  • CaCO3 → CaO + CO2
  • C +CO2 → CO2

The correct answer is: C

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