Calculate the oxidation number of oxygen in potassium ozonide $(KO_3)$.
- A$-\frac{1}{3}$
- B$-\frac{1}{2}$
- C$-1$
- D$-2$
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What is the change in oxidation number of carbon in the following reaction?
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$CH_{4(g)} + 4Cl_{2(g)} \rightarrow CCl_{4(l)} + 4HCl_{(g)}$
The oxidation number of carbon in graphite is ....... .
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