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The E(M^(3+)//M^(2+)) values for Cr, M...

The `E_(M^(3+)//M^(2+))` values for ` Cr`, Mn, Fe and ` Co` are ` 0.41 V, + 1.57 V , + 0.77 V` and `+1, 97 V` respectively. For which one of these metals the change in oxidation state from ` +2 ` to ` +3` is easiest :

A

Cr

B

Mn

C

Fe

D

Co

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The correct Answer is:
A
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The E_(M^(3+)//M^(2+)^@ 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 from =2 to 3 is easiest :

The E_(M^(3+)//M^(2+))^(@) values for Cr,Mn,Fe andCo are 0.41,+1.57,+0.77 and +1.97 V respectively .For which one of these metal the change in oxidation state from +2 to +3 is easiest:

The standard electrode potentials, E^(@) of Fe^(3+)//Fe^(2+) and Fe^(2+)//Fe at 300 K are +0.77 V and -0.44V , respectively, The E^(@) of Fe^(3+)//Fe) at the same temperature is:

The standard electrode potentials, E^(@) of Fe^(3+)//Fe^(2+) and Fe^(2+)//Fe at 300 K are +0.77V and -0.44V , respectively. The E^(@) of Fe^(3+)//Fe at the same temperature is

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