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6. This is because it is a peroxide, with a structure Cr(O)(O2)2, where the nominal ligands are O2- (-2 ox.number in oxides) and O22- (-1 ox.number in peroxides) which gives the Cr an oxidation number of +6. It is sometimes called Chromium(VI) oxide peroxide.

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12y ago
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6mo ago

The oxidation number of Cr in CrO5 is +6. This can be calculated by assigning oxygen an oxidation number of -2 (since it usually has an oxidation number of -2 in compounds), and then solving for Cr. Each oxygen atom contributes -2, giving a total of -10. To balance the charge of the compound, Cr must have an oxidation number of +6.

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11y ago

6 for Chromium.

This is because it is a peroxide, with a butterfly structure Cr(O)(O2)2, where the nominal ligands are O2- (-2 oxidation number in oxides) and O22- (-1 oxidation number in peroxides) which gives the Cr an oxidation number of +6. It is sometimes called Chromium(VI) oxide peroxide.

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Q: Oxidation number of Cr in CrO5?
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What is the oxidation state of chromium in CrO?

Hi, CrO5 is a compound which has the structure which has peroxide linkage(O2 2-) as shown: Thus the oxidation number of Chromium can be calculated as : Let the oxidation number of Cr be x, then x-2-2(2)=0 x-2-4=0 x-6=0 thus x=+6


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