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Which one is correct for electrolysis of...

Which one is correct for electrolysis of `CuSO_4` solution using Cu electrode.

A

Cu will be dissovled in eathod

B

Cu will be dissolved from anode

C

`O_2` will realeased at anode

D

Cu will be accumulated

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Knowledge Check

  • Reaction at the anode during the electrolysis of aqueous CuSO_(4) solution in presence of Cu electrode is -

    A
    `Cu(s)rarr Cu^(2)(aq)+2e , E_("Red")^(@)=+0.34V`
    B
    `H_(2)O(l)rarr(1)/(2)O_(2)(g)+2H^(+)(aq)+2e, E_("Red")^(@)=+0.40V`
    C
    `2OH^(-)(aq)rarr(1)/(2)O_(2)(g)+H_(2)O(l)+2e, E_("Red")^(@)=+0.40V`
    D
    `SO_(4)^(2-)(aq)rarrS_(2)O_(8)^(2-)(aq)+2e, E_("Red")^(@)=+2.0V`

  • What will happen during the electrolysis of equeous solution of CuSO_(4) by using platinum electrodes -

    A
    copper will deposit at cathode
    B
    copper will deposit at anode
    C
    oxygen will be released at anode
    D
    copper will dissolve at anode

  • Aqueous solution of AgNO_(3) is electrolysed in presence of Ag electrodes. As result, 10.8 g of Ag (atomic mass = 108) is deposited at the cathode. If the same amount of electricity is used to carry out the electrolysis of an aqueous solution of CuSO_(4) in presence of Cu electrodes, then -

    A
    `0.1g H_(2)` gas will be liberated at the cathode
    B
    Mass of the cathode will increase by 6.35 g
    C
    Mass of the anode will decrease by 3.175 g
    D
    `0.8g O_(2)` gas will be liberated at the anode.

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