Aqueous nickel(II) sulfate is employed as the electrolyte when a piece of steel is electroplated with nickel. Which materials are chosen for the negative electrode and the positive electrode?
- Anegative electrode: carbon; positive electrode: steel
- Bnegative electrode: nickel; positive electrode: steel
- Cnegative electrode: platinum; positive electrode: nickel
- Dnegative electrode: steel; positive electrode: nickel