The species that do not contain peroxide link | vedclass

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Question

(A) Metallic oxides which on treatment with dilute acids produce hydrogen peroxide are called peroxides. All peroxides contain a peroxide ion $(O_2)^{

Vedclass · Accepted Answer

$PbO_2$

Vedclass · Answer

(A) Metallic oxides which on treatment with dilute acids produce hydrogen peroxide are called peroxides. All peroxides contain a peroxide ion $(O_2)^{2-}$ having the structure $-O-O-$.$PbO_2$ does not contain a peroxide ion $(O_2)^{2-}$ and it cannot be classified as a peroxide.$PbO_2$ contains $O^{2-}$ ions and the oxidation state of $Pb$ is $+4$,whereas $H_2O_2$,$SrO_2$,and $BaO_2$ contain $[O-O]^{2-}$ ions (peroxide ions).Thus,option $A$ is correct.

The species that do not contain peroxide linkage are :-

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