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Write the oxidation number of oxygen in ...

Write the oxidation number of oxygen in (a) `O_(3)`, (b) MgO, (c) `H_(2)O_(2)`, (D) `KO_(2)` and (e) `OF_(2)`

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Oxidation number of .O. in `O_(3) = 0`. Oxidation number of .O. in `MgO = -2`
Oxidation number of .O. in `H_(2)O_(2) = -1`. Oxidation number of .O. in `KO_(2) = -1//2`
oxidation number of .O. in `OF_(2) = +2`.
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AAKASH SERIES-REDOX REACTONS-Questions For Descriptive Answers
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  19. What is the mole coefficient of H(2)SO(4) in the balanced equation. ...

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