Consider the following reduction processes : `Zn^(2+)+2e^(-)toZn(s), E^(o)=-0.76 V` `Ca^(2+)+2e^(-)toCa(s),E^(o)=-2.87 V` `Mg^(2+)+2e^(-)toMg(s),E^(o)=-2.36 V` `Ni^(2+)+2e^(-)toNi(s), E^(o)=-0.25 V The reducing power of the metals increases in the order :
A
Ca`lt`Zn `lt` Mg `lt` Ni
B
Ni `lt` Zn `lt` Mg `lt` Ca
C
Zn`lt` Mg `lt` Ni `lt` Ca
D
Ca `lt` Mg `lt` Zn `lt` Ni
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