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| 1. |
Which is a stronger oxidising agent Cr^2+orFe^(2+) Why? |
| Answer» Solution :`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+)`. | |