The oxidation number of Fe in K4Fe(CN)6 is
+6
+4
+3
+2
The oxidation number of Fe in K4Fe(CN)6 can be calculated as follows,
4(+1) + x + 6(-1) = 0
Hence x = +2
The coordination number of copper in [Cu(NH3)4]2+ is
Determine the oxidation number of Phosphorous in H3PO4.
The oxidation number of Pt in the complex [Pt(C2H4)Cl3]- is: