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Subjective:



          Q. No.                                     Questions                                        Marks
            1.     The act of covering a metal object with a thin layer of coating of a different        1
                   metal: ______________.

            2.     True or False:                                                                        1
                   (a) The metal object on which electroplating is to be done is made the           (0.5+0.5)
                   positive electrode.
                   (b) Tin is electroplated on highly reactive metals to protect them from
                   corrosion and look attractive.
            3.     What is an LED? Why is it preferred over other type of bulbs?                         3
            4.     What is electroplating? What are its uses?                                            3
            5.     What happens when electric current is passed through the copper                       5
                   sulphate solution during electroplating process? Explain it with a neat
                   labelled diagram.



























































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