Which one of the following compounds is a peroxide?

Options

A. `KO_(2)`
B. `BaO_(2)`
C. `MnO_(2)`
D. `NO_(2)`

Answer

B

Explanation

`KO_(2) is K^(o+) O_(2)^(ɵ) ` i.e, superoxide
`BaO_(2) is Ba^(2+)O_(2)^(2-)` ie., peroxide
`MnO_(2) is Mn^(4-)O_(2-)` i.e, monoxide
`NO_(2) is N^(4-) O^(2-)` i.e, monoxide