InterviewSolution
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InterviewSolution
| 1. |
`E_(Mn^(3+)//Mn^(2+))^@`is highly positive than that of `E_(Cr^(3+)//Cr^(2+))^@orE_(Fe^(3+)//Fe^(2+))^@` becauseA. `Mn^(2+)(d^5)` can be easily oxidised to `Mn^(3+)(d^4)` due to low ionisation enthalpyB. third ionisation enthalpy of Mn is much larger due to stable half filled `d^5` electronic configuration of `Mn^(2+)`C. `Mn^(3+)` is more stable than `Mn^(2+)` due to higher oxidation stateD. second ioonisation enthalpy of Mn is higher than third ionisation enthalpy. |
| Answer» Correct Answer - B | |