Question

Describe Werner's co-ordination theory.

Answer 1

A very famous scientist Werner's in the year 1823 put forward his theory ofcoordination compounds whichdescribes the formation and structure of complex compounds which is later termed as Werner's Theory of Coordinate Compounds.

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.