1.

The standard reduction potential for Zn^(2+)//Zn, Ni^(2+)//Ni and Fe^(2+)//Fe are -0.76,-0.23 and -0.44" V " respectively. The reaction X+Y^(2+) to X^(2)+Y will have more negative DeltaG value when X and Y are

Answer»

X=Ni, Y=Fe
X=Ni , Y=Zn
X=Fe , Y=Zn
X=Zn , Y=Ni

Solution :(d) `X+Y^(2+) to X^(2+)+Y`
`DELTAG=-nFE_(cell)`.
Greater the value of `E_(cell)`.more will be the value of `DeltaG`. For this, the difference between `E^(@)` values of `X^(2+)` and `Y^(2+)` must be maximum. This MEANS that X=Zn and Y=Ni.


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