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The standard reduction potentials for Zn...

The standard reduction potentials for `Zn^(2+)|Zn`, `Ni^(2+)|Ni` and `Fe^(2+)|Fe` are -0.76, -0.23 and -0.44V respectively. The reaction `X+Y^2rarrX^2+Y` will be spontaneous when

A

X=Ni, Y=Zn

B

X=Fe, Y=Zn

C

X=Zn, Y=Ni

D

X=Ni, Y=Fe

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