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Consider the following perhalate ions in...

Consider the following perhalate ions in acidic medium `ClO_(4)^(-)(I),BrO_(4)^(-)(II),IO_(4)^(-)(III)`
Arrange these in the decreasing order of oxidizing power

A

`IgtIIgtIII`

B

`IgtIIIgtII`

C

`IIgtIgtIII`

D

`IIgtIIIgtI`

Text Solution

Verified by Experts

The correct Answer is:
D
Standared reduction potential (in volts) of the perhalantions are given as below.
`{:(ClO_(4)^(-)+2H^(+)+2e^(-)toClO_(3)^(-)+H_(2)O,E^(@)=+1.19 V),(BrO_(4)^(-)+2H^(+)+2e^(-)toBrO_(3)^(-)+H_(2)O,E^(@)=+1.74 V),(IO_(4)^(-)+2H^(+)+2e^(-)toIO_(3)^(-)+H_(2)O,E^(@)=+1.65 V):}`
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