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d) (iii) and (iv)
6. Give one term for the following statements: 3 U&C
a) Device that delivers an electric current:
b) The electrode that is connected to the negative terminal of the
battery:
c) Coating metals by using electrolysis:
7. a) Why tin electroplated on iron to make is cans used for storing food? 3 H&A
b) The metal object on which electroplating is to be done is made: (2+1)
___________.
8. An electric current is passed through a conducting solution. List any three 3 C
possible observations.
9. a) Write some points to be remembered while electroplating. 5 C&A
b) Mention two uses of electroplating in our daily life. (3+2)
10. a) Define ‘Electrolysis’. 5 K&A
b) State four uses of electrolysis. (3+2)

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