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Copper from copper sulphate solution can...

Copper from copper sulphate solution can be displaced by ………….The standared reduction potentials of some electrodes are given below:
` E^@(Fe^(2+),Fe) =-0.44V`
`E^@(Zn^(2+),Zn)=-0.76 V`
`E^@(Cu^(2+),Cu) =+0.34V`
`E^@(Cr^(3+),Cr)=-0.74V`
`E^@(H^+,1/2 H_2)=-0.00 V`

A

`H_2`

B

Zn

C

Cr

D

All

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The correct Answer is:
D
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MBD PUBLICATION-ELECTROCHEMISTRY-QUESTION BANK
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