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Four successive members of the first ser...

Four successive members of the first series of the transition metals are listed below. For which one of them the standard potential `(E_(M^(2+)//M)^(@))` value has a positive sign?

A

`Co(Z=27)`

B

`Ni(Z=28)`

C

`Cu(Z=29)`

D

`Fe(Z=26)`

Text Solution

Verified by Experts

The correct Answer is:
C
`E_(Cu^(+2)//Cu)^(o)=0.34`volt, other has `-veE_(R.P.)^(o)`
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