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Given E^@ values as: Zn^(2+)|Zn=-0.76, N...

Given `E^@` values as:
`Zn^(2+)|Zn=-0.76, Ni^(2+)|Ni|0.25, Ag^+|Ag=0.80` and `Cu^(2+)|Cu=0.34`. Which of the following reactions under standard condictions will take place in the specific direction?

A

`Cu(s)+2Ag^(+)(aq)rarrCu^(2+)(aq)+2Ag(s)`

B

`Zn(s)+Ni^(2+)(aq)rarrZn^(+)(aq)+Ni(s)`

C

`Cu(s)+Ni^(2+)(aq)rarrZn^(2+)(aq)+Ni(s)`

D

`Cu(s)+2H^+(aq)rarrCu^(2+)+H_2(g)`

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