Aluminium is obtained by electrolysing a molten mixture that contains aluminium oxide. In a comparable process, magnesium is obtained by electrolysing a molten mixture that contains magnesium chloride. Which statement about the extraction of magnesium is correct?
- AMagnesium ions travel to the anode and are oxidised to magnesium metal.
- BMagnesium ions travel to the anode and are reduced to magnesium metal.
- CMagnesium ions travel to the cathode and are oxidised to magnesium metal.
- DMagnesium ions travel to the cathode and are reduced to magnesium metal.