1.

The standard reduction potentials for \[Z{{n}^{2+}}\]/Zn, \[N{{i}^{2+}}\]/Ni and \[F{{e}^{2+}}\]/Fe are \[-\text{ }0.74,\] \[-\text{ }0.22\text{ }V\]and \[-\text{ }0.44\text{ }V\]respectively. The reaction \[X+{{Y}^{2+}}\to {{X}^{2+}}+Y\] Will be spontaneous when

A. X = Ni, Y = Fe
B. X = Ni, Y = Zn
C. X = Fe, Y = Zn
D. X = Zn, Y = Ni
Answer» E.


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