13ElectrolysisMedium1 mark
Aqueous copper(II) sulfate is a blue solution. The solution is electrolysed using copper electrodes.
Which row describes the changes that take place during the electrolysis?
| mass of cathode | mass of anode | colour of solution | |
|---|---|---|---|
| A | decreases | increases | becomes paler |
| B | decreases | increases | stays the same |
| C | increases | decreases | becomes paler |
| D | increases | decreases | stays the same |