Calculate the oxidation number of Chromium in CrO_(5) . Suggest structure of this compound. Count for the fallacy.

Calculate the oxidation number of Chromium in CrO_(5) . Suggest struct

1.	Calculate the oxidation number of Chromium in CrO_(5) . Suggest structure of this compound. Count for the fallacy.
Answer» Solution :`(x)+[(-2)xx5]=0` or x=+10 The O.N. of +10 for Cr is not POSSIBLE because the maximum O.S. of Cr is +6 (outer electronic config: `3d^(5)4s^(1)` ). The fallacy is removed if we consider the following structure for `CrO_(5)`. On the BASIS of above structure, we have `[(-1)xx4]+(x)+(-2)=0` or `-4+x-2=0` or x=+6