Q2 of 29 Page 233

Electroplating is a very useful process. Explain how.


Electroplating is a very useful process. It is used to coat the metals with another metal. This prevents the exposure of metal to the atmosphere and protects them from corrosion.

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3

British chemist, William Nicholson had shown that if electrodes were immersed in water and a current was passed, bubbles of oxygen and hydrogen were produced. What do your understand by bubbles of hydrogen and oxygen?

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Explain the reason of coating of one metal to another metal.

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Write any one harm of electroplating.

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Acidified water is electrolysed by using carbon electrodes. What is produced at cathode and at anode?