Question:
The oxidation number of Cr in \(CrO_5\) which has the following structure, is:
The oxidation number of Cr in \(CrO_5\) which has the following structure, is:
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In peroxide compounds, oxygen generally has an oxidation state of -1. Use this information to balance the oxidation states of other elements.
Updated On: Apr 23, 2025
- +4
- +5
- +3
- +6
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The Correct Option is D
Solution and Explanation
In \(CrO_5\) (chromium pentoxide), the chromium atom is surrounded by peroxide groups (\(O_2^{2-}\)). To find the oxidation state of Cr, we consider the following: - The peroxide group (\(O_2^{2-}\)) has an overall charge of -2. - There are 5 peroxide groups, so their total charge is -10. - To balance the charge, chromium must have an oxidation state of +6. Thus, the oxidation number of Cr in \(CrO_5\) is +6.
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