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Given that the standard electrode potent...

Given that the standard electrode potentials of metals are:
`K^+|K=-2.93V, Ag^+|Ag=0.80V, Cu^(2+)|Cu=0.34V, Mg^(2+)|Mg= -2.37V , Cr^(3+)/Cr=-0.74V` `Fe^(2+)|Fe=-0.44V`.
Arrange the metals in the increasing order of their reducing power.

A

`Fe^(3+)` increases

B

`Fe^(3+)` decreases

C

`Fe^(2+)|Fe^(3+)` remains unchanged

D

`Fe^(2+)` decreased

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