Which is a stronger oxidising agent `Cr^2+orFe^(2+)` Why?

Explanation

`Cr^(2+)` is a stronger oxidising agent. Outer electronic configuration of `Cr^(2+)` is `3d^4` When it； acts as a reducing agent it gets oxidised to `C^(2+)` having `3d^3` configuration. But in the case of `Fe^(2+)` ,its outer configuration changes from `3d^6` to `3d^5` .In a medium like water, con figuration is more-stable because all the electrons are in lowering level. So `Cr^(2+)` has a greater tendency for reduction and it gets converted more readily to `Cr^(3+)`.