Which of the following reactions does not occur in the blast furnace during the extraction of iron?

JAMB Chemistry 2024 302 views
Source: JAMB · 2024

Which of the following reactions does not occur in the blast furnace during the extraction of iron?

  1. Fe₂O₃(s) + 3CO(g) → 2Fe(l) + 3CO₂(g)
  2. CaO(s) + SiO₂(s) → CaSiO₃(s)
  3. Cs + O₂ → CO₂(g)
  4. Fes + 3Cl₂(g) → 2FeCl₃(s) ✓
Explanation

The blast furnace has carbon burning in air, iron(III) oxide reduced by carbon monoxide, and lime reacting with silica to form slag.

No chlorine is used, so the reaction of iron with chlorine to form FeCl₃ does not occur there.

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