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प्रश्न
Write four postulates of Werner’s theory.
उत्तर
Postulates of Werner’s theory:
- Postulate (1): Unlike metal salts, the metal in a complex possesses two types of valencies: primary (ionizable) valency and secondary (nonionizable) valency.
- Postulate (2): The ionizable sphere consists of entities which satisfy the primary valency of the metal. Primary valencies are generally satisfied by anions.
- Postulate (3): The secondary coordination sphere consists of entities which satisfy the secondary valencies and are non ionizable. The secondary valencies for a metal ion are fixed and satisfied by either by anions or neutral ligands. Number of secondary valencies is equal to the coordination number
- Postulate (4): The secondary valencies have a fixed spatial arrangement around the metal ion.
संबंधित प्रश्न
Choose the most correct option.
The oxidation state of cobalt ion in the complex [Co(NH3)5 Br]SO4 is __________.
Answer the following in one or two sentences.
What is the shape of a complex in which the coordination number of the central metal ion is 4?
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According to Werner's theory the geometry of the complex is determined by ______.
The coordination number of central metal atom/ion in a complex is ____________.
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What is the total number of ligands present in [CoCl2(NH3)4]Cl?
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Which ligand among the following has highest splitting power of d-orbitals of central metal ion?
The correct charge on and co-ordination number of 'Fe' in K3[Fe(CN)6] is ______.
What are the postulates of Werner's theory?
Define coordination sphere. Give example.
Find out the oxidation state of cobalt ions in the complex [Co(NH3)5Br]S04.
What do you know about counter ion?
Write postulates of Werner theory of co-ordination complexes.
