The oxidation number of Cr in is
8
6
4
3
As we have learned
Oxidation number -
It is represented by roman numeral in parenthesis following the name of coordination entity.
- wherein
Eg.
x-4 = -2
x= 2
x+6*(0)+3*(-1)=0
x-3 =0 , x= +3
Oxidation number of Cr is = +3
Option 1)
8
Option 2)
6
Option 3)
4
Option 4)
3
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