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In the extraction of iron, which of the following reactions does NOT take place in...

Chemistry
JAMB 1981

In the extraction of iron, which of the following reactions does NOT take place in the blast furnace?

  • A. CO2 + C → 2CO
  • B. 2Fe2O3 + 3C → 4Fe + 3CO2
  • C. Fe2O3 + 3C → 2Fe + 3CO2
  • D. CaCO3 → CaO + CO2
  • E. CaO + SiO2 → CaSiO3
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Correct Answer: Option B
Explanation

In the extraction of iron in a blast furnace, the reduction of iron(III) oxide (Fe₂O₃) primarily occurs through reaction with carbon monoxide (CO), which is the main reducing agent. While direct reduction with solid carbon (C) can occur to a small extent at very high temperatures, the specific stoichiometry shown in Option B is not a standard or balanced representation of the process occurring in the furnace.


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