Question

Give postulates of Werner’s Coordination theory.

Answer 1

❧Hi my dear friend,

The important postulates of Werner's theory are: The central metal or the metal atoms in coordination compounds show two types of valency. ... It means that the coordination number is fixed. The metal atom works towards satisfying both its primary and secondary valencies.

~Thank you☙

Answer 2

Answer:

( a ) A metal shows two kinds of valencies viz primary valency and secondary valency.Negative ionssatisfy primary valenciesand secondaryvalencies are filled by bothneutral ions  and negative ions.

( b ) A metal ion has a fixed  amount of secondary valencies about the central atom. These valenciesalso orient themselves in a particular  direction in the space provided to the definite geometry of the coordination compound.

( c ) Secondary valencies cannot be ionized , while primary valencies can usually be ionized.