ElectrochemistryMedium
Question
The EoM+3/M2+ values for Cr, Mn, Fe and Co are - 0.41, + 1.57, + 0.77 and + 1.97 V respectively. For which one of these metals the change in oxidation state form + 2 to + 3 is easiest?
Options
A.Cr
B.Co
C.Fe
D.Mn
Solution
∵ oxidation of potential of Cr is least & so it changes easily from + 2 to + 3 state
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