Explain the bonding in coordination compounds in terms of Werner's postulates.
Werner's postulates give an explanation for the bonding in coordination compounds as follows: (i) A metallic reveals styles of valencies namely, number one and secondary valencies. Primary valencies are glad via way of means of bad ions at the same time as secondary valencies are glad through each terrible and impartial ions. (In current terminology, the number one valency corresponds to the oxidation range of the metallic ion, while the secondary valency refers back to the coordination wide variety of the metallic ion. (ii) A metallic ion has a specific quantity of secondary valencies across the critical atom. Also, those valencies mission in a selected course withinside the area assigned to the particular geometry of the coordination compound. (iii) Primary valencies are normally ionizable, even as secondary valencies are non-ionizable.