1.

Which of the following is a set of reducing agents ?

Answer»

`HNO_(3),Fe^(2+),f_(2)`
`F^(-),cI^(-),MnO_(4)^(-)`
`I^(-),Na,Fe^(2+)`
`Cr_(2)O_(7)^(2-),crO_(4)^(2-),Na`

Solution :Since CI in `CIO^(-)` has an O.N of +1 which is higherthan its lowest O.N of -1 and lower than its highest O.N of +5 therefore `CIO^(-)` can act as an oxidising as well as reducing agent


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