1.

How are electro chemical cells classified? Explain.

Answer»

Solution :Electrochemical cells are mainly classified into the following TWO types.
(i) GALVANIC Cell (Voltaic cell) : It is a DEVICE in which a spontaneous CHEMICAL reaction generates an electric current i.e., it converts chemical energy into electrical energy. It is commonly known as a battery.
(ii) Electrolytic cell : It is a device in which an electric current from an external SOURCE drives a nonspontaneous reaction i.e., it converts electrical energy into chemical energy.


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