A) + 3
B) + 6
C) + 4
D) none of these
Correct Answer: B
Solution :
The oxidation number of Cr in chromyl chloride \[(Cr{{O}_{2}}C{{l}_{2}})\]can be calculated as follows: \[x+2\,(-2)+2\,(-1)=0\] \[x-4-2=0\] \[x=+\,6\]
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