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Which of the following arrangements

Question:

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

(i) CrO2- , CIO-3, CrO2-4 , MnO-4

(ii) CIO-3, CrO2-4 , MnO-4 , CrO-2

(iii) CrO2+4 , MnO-4 , CrO-2 , CIO3-

(iv) CrO24-, MnO4- , CrO2- , CIO3-

Solution:

Option (i) CrO2- , CIO-3, CrO2-4 , MnO-4

 is the answer.

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