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The correct order of E(M^(2+)//M)^(@) Va...

The correct order of `E_(M^(2+)//M)^(@)` Values with negative sign for the four successive elements `Cr, Mn, Fe` and `Co` is:

A

Fe gt Mn gt Cr gt Co

B

Cr gt Mn Fe gt Co

C

Mn gt Cr gt Fe gt Co

D

Cr gt Fe gt Mn gt Co

Text Solution

Verified by Experts

The correct Answer is:
C
`E^@` values for `M^(2+)//M` with negative signs are `Cr=-0.91V,Mn=-1.18V,Fe=-0.44V,Co=-0.28V`
Thus, the order is Mn gt Cr gt Fe gt Co.
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