1.

Which of the following acts as reducing as well as oxidising agent ?

Answer»

`NaNO_(3)`
`Na_(2)O`
`Na_(2)O_(2)`
`KNO_(3)`

Solution :`O_(2)^(-)` (peroxide ION) can be oxidised to `O_(2)` and can be reduced to oxide ion , `O_(2)^(-)` . THUS , `Na_(2)O_(2)` ACTS both a reducing as well as an oxidising agent .


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