State the meaning of the terms: (a) Electro-magnetic induction (b) Electrolysis (c) Electrodes (d) Electrorefining of metals


a) The production of electricity (electric current), by a changing magnetic field.

b) The phenomenon of decomposition of an electrolyte, when electricity is passed through it, is known as electrolysis.

c) A metal through which an electric current enters, or leaves, an electric cell for a specific electrolysis experimental set-up.

d) Obtaining pure metal from impure metal by electrolysis is called electrorefining of metals.