Which is the simplest electrolytic cell ? Give detailed note on it.

1.	Which is the simplest electrolytic cell ? Give detailed note on it.
Answer» Solution :* One of the simplest electrolytic cells consists of two copper strips dipping in an AQUEOUS solution of copper sulphate. * Construction : It consists of two strips dipping in an aqueous solution of copper sulphate. One is anode and another is cathode. * Working : If DC voltage is applied to the two electrodes, then `Cu^(2+)` ions discharge at the cathode (negatively charged) and the following reaction TAKES place: `Cu_((aq))^(2+)+2e^(-) to Cu_((S))` * Copper METAL is deposited on the cathode. At the anode, copper is converted into `Cu^(2+)` ions by the reaction: `Cu_((S)) to Cu_((aq))^(2+)+2e^(-)` * Thus, copper is dissolved (oxidised) at anode and oxidation is carried out. So total reaction: `underset("Impure")(Cu_((S)))("anode") to underset("pure")(Cu_((S)))("cathode")` * Uses: This is the basis for an industrial process in which impure copper is converted into copper of high PURITY. the impure copper is made an anode that DISSOLVES on passing current and pure copper is deposited at the cathode.

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