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प्रश्न
Write four postulates of Werner’s theory.
Describe briefly the main postulates of Werner’s theory.
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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.
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संबंधित प्रश्न
Choose the most correct option.
The oxidation state of cobalt ion in the complex [Co(NH3)5 Br]SO4 is __________.
Hybridization of cobalt in [Co(NH3)6]3+ complex ion is _____________
The geometry of [CoF6]3– complex ion is _______.
Draw structure of Ethylenediaminetetraacetate ion.
Write chemical composition of carnalite.
Write oxidation number of iron in [Fe(CO)5]
Distinguish between double salt and coordination complex.
Define Anionic sphere complex.
Define coordination number.
If excess of AgNO3 solution is added to 100 mL of 0.024 M solution of dichlorobis (ethylene diamine) cobalt (III) chloride, how many moles of AgCl will be precipitated?
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 ____________.
Which among the following is a correct formula of Pentammineaquacobalt (III) iodide?
What is oxidation state of iron in potassium hexacyano ferrate (II)?
Which oxidation states CORRECTLY represent the usual range exhibited by the stated metal?
The charge number and coordination number of 2+ the complex [Co(en)2Cl2]2+ are ____________ respectively.
According to Werner's theory based on experiment the formula of coordination compound is CoCl3.3NH3 then the molar conductance in mho mol−1 and number of Cl− ions precipitated by AgNO3 respectively is ____________.
What is the value of primary valence of copper chloride according to Werner's theory?
Which of the following is a property of coordination compound and not of double salt?
Which of the following types of valences, according to Werner's theory is also called as primary valence?
The correct charge on and co-ordination number of 'Fe' in K3[Fe(CN)6] is ______.
Give the primary and secondary valencies of cobalt in the coordination compound [Co(NH3)6]Cl3.
Write postulates of Werner theory of co-ordination complexes.
