Question

describe the electroplating of copper on an iron strip

Answer 1

Electroplating is the process of depositing the desired metal on the other metal by passing electric current through a solution called an electrolyte. In electroplating, first of all two electrodes are connected with a battery and inserted in an electrolytic liquid. Among the two electrodes, the metal to be electroplated is made the cathode (here Iron), while the metal which has to be deposited on this metal is taken as anode (here copper). The electrolyte used here is copper sulphate solution. When an electric current is passed, the electrolyte solution breaks into Cu2+ ions and SO42- ions. The Cu2+ move towards negative electrode i.e iron key here and is deposited on it forming a thin layer of copper on it. SO42- ions move towards anode releasing electrons there to flow through the circuit

Answer 2

Answer:

Take a copper sulphate solution in a beaker . Connect an iron nail that to be electroplated to the negative terminal of a battery . Connect a copper strip to the positive terminal of the battery . Dip the copper strip and object to b electroplated in the beaker containing copper sulphate solution .Leave the set up for half an hour . U will c a deposit of reddish broun coating on the object .

When electricity is passed through the solution , copper ions move towards the cathode and get reduced to copper metal . This metal gets electroplated on the object .

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