CH-1782
Electrolysis of solutions
Chemistry · Secondary 4 · Medium · Electrolysis of solutions
A student electrolyses aqueous copper(II) sulfate using carbon electrodes.
Which ions are discharged at the cathode and what product is formed there?
Which ions are discharged at the cathode and what product is formed there?
- Cu²⁺ ions, forming copper metal
- H⁺ ions, forming hydrogen gas
- SO₄²⁻ ions, forming sulfur dioxide
- OH⁻ ions, forming oxygen gas
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