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Chemistry
The correct descending order of oxidizing power of the following is
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Q. The correct descending order of oxidizing power of the following is
KEAM
KEAM 2014
The d-and f-Block Elements
A
$ Cr_2O_7^{2-} > MnO_4^{-} > VO_2^{+}$
B
$ MnO_4^{-} > Cr_2O_7^{2-} > VO_2^{+}$
C
$ VO_2^{+} > MnO_4^{-} > Cr_2O_7^{2-} $
D
$ MnO_4^{-} > VO_2^{+} > Cr_2O_7^{2-} $
E
$Cr_2O_7^{2-} > VO_2^{+} > MnO_4^{-}$
Solution:
Oxidising power depends upon the stability of reduction product optained. Since lower oxides of $Mn$ are more stable than that of $C r$ and $V$, so the order of oxidising power is
$MnO _{4}^{-}> Cr _{2} O _{7}^{2-}> VO _{2}^{+}$