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  4. What is the oxidation number of chromium in chromyl chloride?

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Q. What is the oxidation number of chromium in chromyl chloride?

JIPMERJIPMER 1996

Solution:

The oxidation number of Cr in chromyl chloride $ (Cr{{O}_{2}}C{{l}_{2}}) $ can be calculated as follows: $ x+2\,(-2)+2\,(-1)=0 $ $ x-4-2=0 $ $ x=+\,6 $