The oxidation state of cobalt in the complex compound is
+3
+6
+5
+2
As we have learned
Oxidation number of central metal atom -
The charge the central atom would carry if all the ligands are removed along with the electron pairs that are shared with the central atom.
-
x+6(0) = +3 x=+3
Option 1)
+3
Option 2)
+6
Option 3)
+5
Option 4)
+2
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