1.

Find out the most stable oxidised species.

Answer»

`CR^(3+)`
`MnO_(4)^(-)`
`Cr_(2)O_(7)^(2-)`
`Mn^(2+)`

Solution :`E_(o x)^(@)` is highest for `Cr/Cr^(3+)`. Hence, `Cr^(3+)` IONS will be most stable OXIDIZED species.


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