O-LevelChemistryMetals & Reactivity5070/11 · Oct/Nov 2024 · Q271 Mark
The equations for three reactions are given. 1 2O2- → O2 + 4e- 2 C + O2 → CO2 3 CaO + SiO2 → CaSiO3 These reactions take place in the extraction of metals. Which row is correct?
Areaction in extraction of aluminium only: 1, reaction in extraction of iron only: 2, reaction in extraction of aluminium and iron: 3
Breaction in extraction of aluminium only: 1, reaction in extraction of iron only: 3, reaction in extraction of aluminium and iron: 2
Creaction in extraction of aluminium only: 2, reaction in extraction of iron only: 1, reaction in extraction of aluminium and iron: 3
Dreaction in extraction of aluminium only: 2, reaction in extraction of iron only: 3, reaction in extraction of aluminium and iron: 1
✓ Correct answer
B: reaction in extraction of aluminium only: 1, reaction in extraction of iron only: 3, reaction in extraction of aluminium and iron: 2
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