Which one of the following is an oxide?

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(C) CompoundNature$KO_2$Superoxide$BaO_2$Peroxide$SiO_2$Oxide$CsO_2$SuperoxideAn oxide is a chemical compound that contains at least one oxygen atom a

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$SiO_2$

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(C) CompoundNature$KO_2$Superoxide$BaO_2$Peroxide$SiO_2$Oxide$CsO_2$SuperoxideAn oxide is a chemical compound that contains at least one oxygen atom and one other element in its chemical formula,where the oxygen is in the $-2$ oxidation state. $SiO_2$ (silicon dioxide) is a typical oxide,whereas $KO_2$ and $CsO_2$ are superoxides (containing the $O_2^-$ ion) and $BaO_2$ is a peroxide (containing the $O_2^{2-}$ ion).

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