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# Form 3 Chemistry: Organic Chemistry I Video Questions and Answers

Methane reacts with oxygen as shown by the equations I and II below
(I) CH_4(g) + 2O_2(g)----->CO_2(g)+2H_2O(l)
(II) 2CH_4(g)+3O_2(g)---->2CO(g)+4H_2O(l)
Which one of the two reactions represents the complete combustion of methane? Explain.

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Reaction I: in this reaction there is production of carbon(iv)oxide (CO_2) in which carbon is oxidized to the highest oxidation number.