Question

postulates of werners theory

Answer 1

Postulates of Werner's Theory. The important postulates of Werner's theory are: The central metal or the metal atoms in coordination compounds show two types of valency. ... On the other hand, a negative ion or neutral molecules satisfy secondary valencies.

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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.