Which of the following processes is used to purify copper?

Which of the following processes is used to purify copper?

Step 1: Start with impure copper, which contains other metals and impurities.
Step 2: Dissolve the impure copper in a solution, usually containing copper sulfate.
Step 3: Set up an electrolysis apparatus with two electrodes: an anode (positive) and a cathode (negative).
Step 4: Place the impure copper as the anode and a pure copper strip as the cathode in the solution.
Step 5: Pass an electric current through the solution.
Step 6: The electric current causes copper ions to move from the anode to the cathode.
Step 7: As copper ions reach the cathode, they gain electrons and deposit as pure copper.
Step 8: Impurities either remain in the solution or fall off the anode, thus separating them from the pure copper.

No concepts available.