Copper from copper sulphate solution can be displaced by …………. The standard reducation potentials of some electrodes are given below: (a) `E^(@) (Fe^(2+), Fe) = -0.44 V` (b) `E^(@) (Zn^(2+), Zn) = -0.76 V` (c) `E^(@) (Cu^(2+), Cu) = +0.34 V` (d) `E^(@) (H^(+), 1//2H_(2)) = +0.34 V`A. `H^(2)`B. `Zn`C. `Cr`D. `Fe`

Copper from copper sulphate solution can be displaced by ………….

1.	Copper from copper sulphate solution can be displaced by …………. The standard reducation potentials of some electrodes are given below: (a) `E^(@) (Fe^(2+), Fe) = -0.44 V` (b) `E^(@) (Zn^(2+), Zn) = -0.76 V` (c) `E^(@) (Cu^(2+), Cu) = +0.34 V` (d) `E^(@) (H^(+), 1//2H_(2)) = +0.34 V`A. `H^(2)`B. `Zn`C. `Cr`D. `Fe`
Answer» All have more `E_(OP)^(@)` values than `E_(O_(Cu))`

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What are elementary reactions ?

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