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

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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