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The standard reduction potential of Zn-e...

The standard reduction potential of Zn-electrode is `-0.76V.` The standard oxidation potential of the electrode will be ______________.

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`+0.76V`
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What will be the standard reduction potential of an electrode, if its standard oxidation potential is x volt? Explain.

Knowledge Check

  • Which cell will measure standard electrode potential of copper electrode ?

    A
    `Pt(s)|H_(2)("g, 0.1 bar")|H^(+)(aq, 1M)|Cu^(2+)(aq, 1M)|Cu(s)`
    B
    `Pt(s)|H_(2)("g, 1bar")|H^(+)(aq, 1M)|Cu^(2+)("aq, 2M")|Cu(s)`
    C
    `Pt(s)|H_(2)("g, 1bar")|H^(+)(aq, 1M)|Cu^(2+)("aq, 1M)|Cu(s)`
    D
    `Pt(s)|H_(2)("g, 1bar")|H^(+)(aq, 0.1M)|Cu^(2+)("aq, 1M")|Cu(s)`

  • Which cell will measure standard electrode potential of copper electrode -

    A
    `Pt(s)|H_(2)"(g, 0.1 bar)"|H^(+)"(aq, 1M)"||Cu^(2+)"(aq, 1M)"|Cu`
    B
    `Pt(s)|H_(2)"(g, 1 bar)"|H^(+)"(aq, 1M)"||Cu^(2+)"(aq, 1M)"|Cu`
    C
    `Pt(s)|H_(2)"(g, 1 bar)"|H^(+)"(aq, 1M)"||Cu^(2+)"(aq, 1M)"|Cu`
    D
    `Pt(s)|H_(2)"(g, 1bar)"|H^(+)"(aq, 0.1M)"||Cu^(2+)"(aq, 1M)"|Cu`

  • Consider the following four electrodes : P=Cu^(2+)"(0.001 M)|Cu(s) Q=Cu^(2+)("(0.1 M)"|Cu(s) R=Cu^(2+)"(0.01 M)"|Cu(s) S=Cu^(2+)"(0.001)"|Cu(s) If the standard electrode potential of Cu^(2+)|Cu is +0.34V , the reduction potential in volts of the above electrodes follows the order-

    A
    `P gt S gt R gt Q`
    B
    `S gt R gt O gt P`
    C
    `R gt S gt O gt P`
    D
    `Q gt R gt S gt P`

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    The standard reduction potential of Zn^(2+)|Zn electrode is -0.76 V . What will be the electrode reactions if this electrode is coupled with a standard hydrogen electrode?

    The standard reduction potential of Zn is -0.76V and that of Cu is +0.34V . What do they indicate?

    How can the reduction potential of an electrode be increased ?

    The standard reduction potential of a silver chloride electrode is 0.2V and that of silver electrode is 0.79V. Calculate the maximum amount of AgCl that can be dissolved in 10^(6) L of a 0.1 M AgNO_(3) solution.

    What is electrode potential ?

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