Chemistry

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In the redox conversion of CO to CO2−
3 , the oxidation number of C goes from (−2, 0, +2) to (−4, −2, +4, +6). Recall that the oxidation number of oxygen is typically −2.
1. +2; +6
2. −2; −4
3. 0; −2
4. 0; +6
5. −2; +6
6. +2; +4

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