CH-1794
Electrolysis of molten compounds
Chemistry · Secondary 4 · Easy · Electrolysis of molten compounds
Molten magnesium chloride, MgCl₂(l), is electrolysed using inert graphite electrodes. Which ion is discharged at the anode and what product is formed there?
- Mg²⁺ ions are reduced to magnesium atoms.
- Mg²⁺ ions are oxidised to magnesium(II) ions in solution.
- Cl⁻ ions are oxidised to chlorine gas.
- Cl⁻ ions are reduced to chloride molecules.
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