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Question: Which of the following arrangements represent increasing oxidation number of the central atom?...

Which of the following arrangements represent increasing oxidation number of the central atom?

A

CrO2−,ClO3−,CrO42−,MnO4−CrO_{2}^{-},ClO_{3}^{-},CrO_{4}^{2 -},MnO_{4}^{-}

B

ClO3−,CrO42−,MnO4−,CrO2−ClO_{3}^{-},CrO_{4}^{2 -},MnO_{4}^{-},CrO_{2}^{-}

C

CrO2−,ClO3−,MnO4−,CrO42−CrO_{2}^{-},ClO_{3}^{-},MnO_{4}^{-},CrO_{4}^{2 -}

D

CrO42−,MnO4−,CrO2−,ClO3−CrO_{4}^{2 -},MnO_{4}^{-},CrO_{2}^{-},ClO_{3}^{-}

Answer

CrO2−,ClO3−,CrO42−,MnO4−CrO_{2}^{-},ClO_{3}^{-},CrO_{4}^{2 -},MnO_{4}^{-}

Explanation

Solution

: CrO+32−<ClO3−+5<CrO42−+6<MnO4−+7{\overset{+ 3}{CrO}}_{2}^{-} < \overset{+ 5}{ClO_{3}^{-}} < \overset{+ 6}{CrO_{4}^{2 -}} < \overset{+ 7}{MnO_{4}^{-}}