Aluminium is the most plentiful metal in the Earth’s crust. Aluminium is obtained by electrolysing aluminium oxide dissolved in molten cryolite. What material is used to make each electrode in this electrolysis?
- Aanode: aluminium; cathode: carbon
- Banode: carbon; cathode: carbon
- Canode: carbon; cathode: steel
- Danode: steel; cathode: aluminium