CO can be used as a fuel but not CO2 because ________________.
A
CO2 is not a good fuel.
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B
CO is a good fuel.
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C
CO can be oxidized but CO2 can not can be oxidized.
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D
CO2 can be oxidized but not CO.
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Solution
The correct option is DCO can be oxidized but CO2 can not can be oxidized. Maximum oxidation state of carbon is +4 and cannot be oxidised beyond this. Carbon already possesses +4 oxidation state in CO2.