Aluminium is extracted commercially from its ore by?

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Chemistry JAMB 1988

Aluminium is extracted commercially from its ore by?

  • heating aluminium oxide with coke in a furance
  • the electrolysis of fused aluminium oxide in cryolite checkmark
  • treating cryolite with sodium hydroxide solution under prressure
  • heating sodium aluminium silicate to a high temperature

The correct answer is: B

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