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

  • A CO2 + C →2CO
  • B Fe2O3 + 3CO →2Fe + 3CO2
  • C SiO2 + CaO →CaSiO3
  • D CaCO3 → CaO + CO2
  • E C +CO2 → CO2
waec 1989chemistry

The correct answer is C. SiO2 + CaO →CaSiO3

No explanation given
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