CH-1800
Electrolysis of solutions
Chemistry · Secondary 4 · Medium · Electrolysis of solutions
A student electrolyses aqueous copper(II) sulfate using inert electrodes.
Which ion is discharged at the cathode and what is observed?
Which ion is discharged at the cathode and what is observed?
- H⁺ is discharged and bubbles of hydrogen form
- Cu²⁺ is discharged and a pink-brown solid forms
- SO₄²⁻ is discharged and a colourless gas forms
- OH⁻ is discharged and a green solid forms
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