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How would you account for the increasing...

How would you account for the increasing oxidising power in the series `VO_2^+ < Cr_2O_7^(2-) < MnO_4^-` ?

A

`VO_2^(+) ltCr_2O_7^(2-) ltMnO_4^(-)`

B

`Cr_2O_7^(2-) lt VO_2^(+) lt MnO_4^(-)`

C

`Cr_2O_7^(2-) ltMnO_4^(-) ltVO_2^(+) `

D

`MnO_4^(-) ltCr_2O_7^(2-) lt VO_2^(+) `

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