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Under standard conditions, which one of ...

Under standard conditions, which one of the reactions is not feasible `(E_(Ni^(2+)|Ni)^(@)=-0.25V, E_(Cd^(2+)|Cd)^(@)=-0.4V, E_(Fe^(2+)|Fe)^(@)=-0.44V, E_(cu^(@+)|Cu)^(@)=+0.34V)`-

A

`Cd(s)+Ni^(2+)(aq)rarr Ni(s)+Cd^(2+)(aq)`

B

`Cd(s)+Fe^(2+)(aq)rarr Fe(s)+Cd^(2+)(aq)`

C

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

D

`Fe(s)+Cu^(2+)(aq)rarr Cu(s)+Fe^(2+)(aq)`

Text Solution

Verified by Experts

The correct Answer is:
B
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