The \[E{{{}^\circ }_{{{M}^{3+}}/{{M}^{2+}}}}\] values for \[Cr,Mn,Fe\] – McqOptions

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1.	The \[E{{{}^\circ }_{{{M}^{3+}}/{{M}^{2+}}}}\] values for \[Cr,Mn,Fe\] and Co are \[-0.41,+1.57,+0.77\] and + 1.97V respectively For which one of these metals the change in oxidation state from +2 to +3 is easiest?
A.	Fe
B.	Mn
C.	Cr
D.	Co
Answer» D. Co

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