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Guide to Electrolysis:
Electrolysis: Electrolysis is the process by which ionic substances are broken down into
simpler substances using electricity or when an electric current passes through them.

Ionic substances: they form when a metal reacts with a non metal and contain charged
particles ­ ions. Ionic substances can be…

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Purification of copper:

Electrolysis also is used in the purification of copper after the extraction of copper by
reduction with carbon. The positive electrode, the anode, is made of the impure copper
which is to be purified. The negative electrode, the cathode, is a bar of pure copper. The two…


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