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Chemical Effect...

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  • Question 1
    1 / -0

    The chemical effect produced by an electric current depends on:

  • Question 2
    1 / -0

    Which of the following statement is correct while testing for conduction of electricity in lemon juice using an LED tester?

  • Question 3
    1 / -0

    Which of the following would show deflection in the compass needle, the moment you dip the free ends of the tester?

  • Question 4
    1 / -0

    In the experiment to test for conduction of electricity through potato, which of the following observations indicate that a potato is a conductor of electricity?

  • Question 5
    1 / -0

    If electrodes are immersed in water and a current was passed, bubbles of ___________ and __________ are produced.

  • Question 6
    1 / -0

    LED is better than bulb to use in a tester as :

  • Question 7
    1 / -0

    In the experiment to test for conduction of electricity through a potato, the greenish blue color spot on the potato is useful in identifying :

  • Question 8
    1 / -0

    Why do jewellery makers electroplate gold or silver on metals? 

  • Question 9
    1 / -0

    Which of the following gas is formed at the electrode, connected to the positive terminal of the battery?

  • Question 10
    1 / -0

    Which of the following is true during electroplating?

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