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# Which is not true about the reaction of $K{O_2}$ with $C{O_2}$ and ${H_2}O$A.In $K{O_2}$, oxidation number of $K$is $+ 1$B.$K{O_2}$ acts as redundantC.$K{O_2}$acts as oxidantD.Oxidation number of carbon does not change during the reaction

Last updated date: 16th Jun 2024
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Hint:Oxidation number in the simplest terms can be referred to as the charge which an atom or ion of an element carries or appears to carry when present in a combined state with other atoms or ions. It is either equal to the number of groups present on the atom/ ion or the number of valence electrons. To answer this question, you must recall to calculate the change in oxidation state of an element.

The reaction of $K{O_2}$ with $C{O_2}$ and ${H_2}O$ is given by:
$4K{O_2} + 2{H_2}O + 4C{O_2} \to 4KHC{O_3} + 3{O_2}$
Potassium being an alkali metal will show an oxidation state of $+ 1$. Oxygen in $O_2^ -$ion gets oxidized from oxidation state of $- 1/2$to $0$. Since it is getting oxidized, it will act as a redundant.