1.

Following reactionsoccur spontaneously as written below: 2Fe^(+++)+2l^(-) to 4Fe^(++)+I_(2) O_(2)(g)+H^(+)+4Fe^(++) to 4Fe^(+++)+2H_(2)O Oxidizing power of O_(2),Fe^(+++) and I_(2) will be in the order:

Answer»

`O_(2) GT Fe^(3+) gt I_(2)`
`O_(2) gt I_(2) gt Fe^(3+)`
`I_(2) gt O_(2) gt Fe^(3+)`
`I_(2) gt Fe^(3+) gt O_(2)`

Solution :`Fe^(3+)` undergoes reduction in presence of `I^(-)` but undergoes OXIDATION in presence of `O_(2)`.


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