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Which of the following species do not s...

Which of the following species do not show disporoportionation reaction and why ?
`CIO^(-),CIO_(2)^(-),CIO_(3)^(-)` and `CIO_(4)^(-)`
Also write reaction for each of the species that disproportinates

Text Solution

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The oxidation state of CI in all the given species are `overset(+1)CIO, overset(+3)CIO, overset(+5)CIO_(3), overset(+7)CIO_(4)`
out of above species `CIO_(4)` does not undergo disproportionation since in this oxanion chloring is already present in the higherst oxidation state +7 and hence cannot be further oxidation
all the remaing oxanotion have oxdation states lower undergo disproportion reaction as shown below
`3overset(+1)CIOrarr2overset(-1)CI+overset(+5)CIO_(3),overset(+3)CIO_(2)rarr2CIO_(3),4CIO_(3)^(-)rarr3 CIO_(4)^(-)`
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