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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.
संबंधित प्रश्न
Choose the most correct option.
The oxidation state of cobalt ion in the complex [Co(NH3)5 Br]SO4 is __________.
The charge on metal ion in [Fe(CN)6]4− is _________
The geometry of [CoF6]3– complex ion is _______.
Draw structure of Ethylenediaminetetraacetate ion.
Write coordination number of Fe3+ in [Fe(C2O4)3]3− complex 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.
The hybridization of cobalt in [CoF6]3− and [Co(NH3)6]3+ are ____________ respectively.
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 ____________.
What is oxidation state of iron in potassium hexacyano ferrate (II)?
Identify the formula of potassiumtrioxalatoaluminate (III).
What is the total number of ligands present in [CoCl2(NH3)4]Cl?
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 ____________.
Which of the following types of valences, according to Werner's theory is also called as primary valence?
Which ligand among the following has highest splitting power of d-orbitals of central metal ion?
Define coordination sphere. Give example.
What is double salt?
