An aqueous solution of nickel (II) sulphate was electrolyzed using nickel electrodes. Observe the diagram and answer the questions that follow

What do you observe at the cathode and anode respectively?

Explanation

At cathode reduction takes place and deposition of Ni takes place as `Ni^(2+)` ions from solution convert to Ni metal.
`Ni^(2+)+2e^(-) to Ni`
At anode oxidation takes place and Ni metal converts to `Ni^(2+)` ions.
`Ni to Ni^(2+)+2e^(-)`