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  4. The oxidation number of Cr in CrO5 is

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Q. The oxidation number of Cr in $ Cr{{O}_{5}} $ is

JamiaJamia 2011

Solution:

Structure of $ Cr{{O}_{5}} $ is as follows
$ x+1\times (-2)+4(-1)=0 $ $ x-2-4=0 $ or $ x=+6 $

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