Question

Explain the process of electrolysis With the help of an example.

Answer 1

For electrolysis to work, the ions must be free to move. Ions are free to move when an ionic substance is dissolved in water or molten (melted). The solution or molten ionic compound is called an electrolyte.

For example, if electricity is passed through copper chloride solution, the copper chloride is broken down to form copper metal and chlorine gas.

Negative ions are attracted to the positive electrode, and positive ions to the negative

Here is what happens during electrolysis:

Positively charged ions migrate to the negative electrode (cathode) during electrolysis. They gain eelectrons and are reduced.

Negatively charged ions migrate to the positive electrode (anode) during electrolysis. They lose electrons and are oxidised.