what is the difference btw primary and secondry valency?
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Secondary valency may be defined as no of mono dentate or equivalent to mondentate ligand attached to central metal ion. ... Secondary valency is satisfied by H2O molecules and is equal to 6.
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Primary Valency
Primary valency may be defined as +ve charge raised over central metal ion as its oxidation state
It is ionisable and variable
Example: [Cr(H2O)6]Cl3 = Primary valency is satisfied by Chloride ion and is equal to 3
Secondary Valency
Secondary valency may be defined as no of mono dentate or equivalent to mondentate ligand attached to central metal ion. It defines the Coordination No.
It is non ionisable and fixed
Secondary valency is satisfied by H2O molecules and is equal to 6.
Primary valency may be defined as +ve charge raised over central metal ion as its oxidation state
It is ionisable and variable
Example: [Cr(H2O)6]Cl3 = Primary valency is satisfied by Chloride ion and is equal to 3
Secondary Valency
Secondary valency may be defined as no of mono dentate or equivalent to mondentate ligand attached to central metal ion. It defines the Coordination No.
It is non ionisable and fixed
Secondary valency is satisfied by H2O molecules and is equal to 6.
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