How many coulombs are provided by a current of $0.010 \ mA$ in the calculator battery that can operate for $1000 \ hours$?

  • A
    $1.0$
  • B
    $10$
  • C
    $0.010$
  • D
    $36$

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Reason : Oxidation takes place at anode and reduction at cathode.

In the electrolysis of aqueous copper sulphate $(CuSO_4)$ using inert electrodes,the gases evolved at the anode and cathode are,respectively:

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