5. Find the oxidation numbers of carbon atoms in the following molecules: \( \mathrm{CH}_{4}, \mathrm{CH}_{3} \mathrm{CH}_{3}, \mathrm{C}_{2} \mathrm{H}_{2} \), \( \mathrm{HCHO}, \mathrm{HCOOH}, \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COOH}, \mathrm{C}_{6} \mathrm{H}_{6}, \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{OH} \).
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- The oxidation number of oxygen is usually -2. - The sum of oxidation numbers in a neutral molecule is 0. Show more…
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$$ \begin{aligned} &\text { Find the oxidation number of carbon in the following compounds : }\\ &\left(11,_{3}()\right), \mathrm{CH}_{2} \mathrm{O}, \mathrm{HCOOH}, \mathrm{C}_{2} \mathrm{H}_{2} \end{aligned} $$
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