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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)^(@)= 0.34` volt, other has `-ve E_(R.P)^(@)`
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