Chemistry 0620 · IGCSE · Extraction of metals

Extraction of metals — practice question

Which statement concerning the production of aluminium using electrolysis is correct?

  • AAluminium ions are oxidised to aluminium by gaining electrons.
  • BAluminium is extracted from its ore hematite.
  • CMolten cryolite is used to dissolve the aluminium oxide.
  • DOxygen is formed at the negative electrode.

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