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Electrochemistr...

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  • Question 1
    1 / -0

    Which of the following is true for electrolytic refining?

  • Question 2
    1 / -0

    The electric current in a chemical cell is due to movement of :

  • Question 3
    1 / -0

    The internal resistance of a dry cell is of the order of:

  • Question 4
    1 / -0

    An example of secondary battery cell is:

  • Question 5
    1 / -0

    Molten $$AlCl_3$$ is electrolysed with the current of $$0.5 $$ empere to produced 27 g $$Al$$. Number of Farady used are :

  • Question 6
    1 / -0

    In electrolysis experiment, after some times, the battery connection is reversed. Then 

  • Question 7
    1 / -0

    Internal resistance of a battery cell increases with :

  • Question 8
    1 / -0

    The electric charge for electrode deposition of 1 g equivalent of a substance is:

  • Question 9
    1 / -0

    The half cell involving the reaction $$Cr_2O_7^{2-} (aq) + 14 H^+ (aq) + 6e   \rightarrow 2Cr^{3+} (aq) + 7H_2O$$ can be represented as :

  • Question 10
    1 / -0

    In the atmosphere of industrial smog, copper corrodes to form:

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