Which one of the following compounds is a per | vedclass

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(B) In a peroxide,the oxidation number of $O$ is $-1$,and they contain a peroxide linkage $(-O-O-)$. They react with dilute acids to produce $H_2O_2$.

Vedclass · Accepted Answer

$BaO_2$

Vedclass · Answer

(B) In a peroxide,the oxidation number of $O$ is $-1$,and they contain a peroxide linkage $(-O-O-)$. They react with dilute acids to produce $H_2O_2$.For $KO_2$: Let the oxidation state of $O$ be $x$. Then $1 + 2x = 0$,so $x = -\frac{1}{2}$. This is a superoxide.For $BaO_2$: Let the oxidation state of $O$ be $x$. Then $2 + 2x = 0$,so $x = -1$. This is a peroxide.For $MnO_2$ and $NO_2$: These are dioxides where the oxidation state of $O$ is $-2$. Therefore,they are not peroxides.Thus,$BaO_2$ is the correct answer.

$A$. $Be$	$I$. $1.74$
$B$. $Mg$	$II$. $1.84$
$C$. $Ca$	$III$. $2.63$
$D$. $Sr$	$IV$. $1.55$

Which one of the following compounds is a peroxide?

Similar Questions

Match the following alkaline earth metals with their respective densities $(g/cm^3)$:
$A$. $Be$ $I$. $1.74$
$B$. $Mg$ $II$. $1.84$
$C$. $Ca$ $III$. $2.63$
$D$. $Sr$ $IV$. $1.55$

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