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Carbon monoxide has reducing property wh...

Carbon monoxide has reducing property while carbon dioxide acts as oxidising agent - Why?

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Oxidation no. of carbon in CO is ` +2` which can only be3 increased to maximum oxidation no +4 as in `CO_2`. So CO has a tendency to oxidise and has strong reducing character while +4 oxidation state of C in CO_2 can be decreased. Sso CO_2 acts as an oxidising agent only .
`2overset(+2)CO+O_2=2overset(+4)CO_2`
`overset(+4)CO_2+2Mg=2MgO+overset0C`
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