Question
What is the oxidation number of oxygen in each of the following compounds?(a) $\mathrm{Al}_{2} \mathrm{O}_{3} \quad$ (b) $\mathrm{SrO}_{2}\quad$ (c) $\mathrm{SnO}_{2} \quad$ (d) $\mathrm{CsO}_{2}$
Step 1
This is determined by the electronegativity of the atoms involved in the bond. Oxygen is more electronegative than most other elements, so it usually has an oxidation state of -2. Show more…
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