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Which of the following is not a rule for calculating oxidation number ?A. For ions, oxidation number is equal to the charge on the ion.B. The oxidation number of oxygen is -2 in all of its compounds.C. The oxidation number of fluorine is -1 in all of its compounds.D. Oxidation number of hydrogen is +1 except in binary hydrides of alkali metals and alkaline earth metals where it is -1. |
Answer» Correct Answer - B Oxidation number of oxygen is -2 in most of its compounds. The exceptions are -1 in peroxides and -1/2 in superoxides, +2 in `OF_(2)` and +1 in `O_(2)F_(2)`. |
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