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what is the oxidation state of 02

1. O2 is standard state of oxygen.

2. Thus, it has oxidation state =0.

3. This is because, elements in their standard state are having 0 oxidation state.

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The guidelines for assigning oxidation states (numbers) are given below: The oxidation state of any element such as Fe, H2, O2, P4, S8 is zero (0). The oxidation state of oxygen in its compounds is -2, except for peroxides like H2O2, and Na2O2, in which the oxidation state for O is -1.
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-2
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The oxidation state of oxygen(02) is -2.
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