O-LevelChemistryMetals & Reactivity5070/12 · May/June 2014 · Q261 Mark
Aluminium is extracted from its molten oxide ore by electrolysis whereas zinc is extracted by reduction of its oxide when heated with coke. Which statement explains this?
AAluminium is very high in the reactivity series.
BAluminium ores are very rare.
CElectrolysis is a cheaper method than reduction of the oxide with coke.
DZinc oxide has a higher melting point than aluminium oxide.
✓ Correct answer
A: Aluminium is very high in the reactivity series.
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