Question

2marks
Sub-Chemist
3 what happen when electrolyses of aqueous copper sulphate wing
platinum electrode (Non-attachable)​

Answer 1

Answer:

The change involves two electrons per copper atom. ... When copper electrodes are used in the electrolysis of copper sulfate solution, the mass loss of copper from the positive anode electrode should equal the mass of copper gained and deposited on the negative cathode electrode.

Answer 2

Answer:

In the aqueous solution, copper sulphate dissociates into its respective ions. On passing electric current, the copper ions (cations) move towards the cathode and get deposited as copper. Simultaneously, the sulphate ions (anions) move towards the anode. So, blue colour of the solution disappears.