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The correct discending order of oxidisin...

The correct discending order of oxidising power of the following is

A

`Cr _(2) O _(7) ^(2-) gt Mn O _(4) ^(-) gt VO _(2) ^(+)`

B

`Mn O _(4) ^(-) gt Cr _(2) O _(7) ^(2-) gt VO _(2) ^(+)`

C

`Mn O _(4) ^(-) gt VO _(2) ^(+) gt Cr _(2) O _(7) ^(2-)`

D

`Cr 2 O _(7) ^(2-) gt VO _(2) ^(+) gt MnO _(4) ^(-)`

Text Solution

Verified by Experts

The correct Answer is:
B
Oxidising power depends upon the stability of reduction product optained. Since lower oxides of Mn are more stable than that of Cr and V, so the order of oxidising power is
`MnO _(4) ^(-) gt Cr _(2) O _(7) ^(2-) gt VO _(2) ^(+)`
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