Given standard electrode potentials
`K^(o+)|K=-2.93V, Ag^(o+)|Ag=0.80V`,
`Hg^(2+)|Hg=0.79V`
`Mg^(2+)|Mg=-2.37V,Cr^(3)|Cr=-0.74V`
Arrange these metals in their increasing order of reducing power.

Answer

`Ag

Explanation

Higher the oxidation potential, more easily it is oxidized and hence greater is the reducing power. Thus, the increasing order of reducing power will be `AgltHgltCrltMgltK`.