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Aluminum is extracted by

Chemistry
WAEC 2025

Aluminum is extracted by

  • A. electrolysis of the purified ore
  • B. froth floatation of the smelted ore
  • C. reduction of the ore with coke in a furnace
  • D. roasting the ore in excess supply of air
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Correct Answer: Option A
Explanation

Aluminum is a highly reactive metal, placing it high on the reactivity series. Because it forms very stable oxides, it cannot be extracted from its ore (bauxite) using standard chemical reducing agents like carbon or coke. Instead, the industrial extraction process is by electrolysis of the purified ore.


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