CH-1790
Electrolysis of molten compounds
Chemistry · Secondary 4 · Medium · Electrolysis of molten compounds
Four substances are electrolysed using inert electrodes.
1 molten lead(II) bromide
2 aqueous copper(II) sulfate
3 concentrated aqueous sodium chloride
4 molten sodium chloride
For which substances is a metal formed at the cathode?
1 molten lead(II) bromide
2 aqueous copper(II) sulfate
3 concentrated aqueous sodium chloride
4 molten sodium chloride
For which substances is a metal formed at the cathode?
- 1, 2 and 4 only
- 1 and 3 only
- 2 and 3 only
- 3 and 4 only
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