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Solve! Which one of the following compounds is a peroxide?

Which one of the following compounds is a peroxide?

  • Option 1)

    KO_{2}

  • Option 2)

    BaO_{2}

  • Option 3)

    MnO_{2}

  • Option 4)

    NO_{2}

 
Answers (1)
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S subam

As we learned in concept

Basic oxides of oxygen -

Alkali, Alkaline earth and transition metals form basic oxides 

- wherein

Na2O,MgO,Fe2O3

 

 When in a compound, the oxidation state of oxygen is -1 and H_{2}O_{2} is released on reaction with dilute acids, that compound has peroxide linkage.

BaO_{2}, let x be the O.S. of 0

then +2 + 2(x) = 0

                   Dx = -1

Also, BaO_{2} gives H_{2}O_{2} on reaction with dilute acids.

 


Option 1)

KO_{2}

This option is incorrect.

Option 2)

BaO_{2}

This option is correct.

Option 3)

MnO_{2}

This option is incorrect.

Option 4)

NO_{2}

This option is incorrect.

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