Q14 of 16 Page 14

Why chromium is used for electroplating? Why the objects which have chromium plating are not made of chromium itself?

Chromium has a shiny appearance, does not corrode and resists scratches. However chromium is expensive and it may not be to make the whole object out of chromium. So the object is made from a cheaper metal and only a coating of chromium over it is done.

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12 During electroplating the copper deposited on the plate connected to negative terminal comes from the solution. How this loss of copper from solution compensated? 13 Give one example of the application of electroplating. 15 Except chromium plating on several other metals what other metals are used for waiting . Give few examples. 16 Make a list of materials around you which conduct electricity and a list of those that do not.