1.

Which of the following group of molecules can act both as oxidant as well as reductant :-

Answer»

`KM nO_(4), O_(3), SO_(3)`
`HClO_(4), HNO_(3), H_(2)O_(2)`
`HNO_(3), SO_(2), O_(3)`
`HNO_(2), SO_(2), H_(2)O_(2)`

Answer :D


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