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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

`Cr gt Mn gt Fr gt Co`

B

`Mn gt Cr gt Fe gt Co`

C

`Cr gt Fe gt Mn gt Co`

D

`Fe gt Mn gt Cr gt Co`

Text Solution

Verified by Experts

The correct Answer is:
B
(b) is the correct answer
`E^(@)Mn^(2+)//Mn= -1.18 V`
`E^(@) Cr^(2+)//Cr= -0.91 V`
`E^(@) Fe^(2+)//Fe = -0.44 V`
`E^(@) CO^(2+)//Co= -0.28 V`
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