Chemistry 0620 · IGCSE · Extraction of metals

Extraction of metals — practice question

Aluminium is obtained from its ore by electrolysis. What function does cryolite serve in this process?

  • Ato lower the operating temperature
  • Bto lower the boiling point of bauxite
  • Cto raise the melting point of bauxite
  • Dto act as a catalyst

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