Question:
According to Werner's theory, the primary valencies of the central metal atom
According to Werner's theory, the primary valencies of the central metal atom
Updated On: Jul 6, 2022
- are satisfied by negative ions
- are satisfied by negative ions or neutral molecule
- decide the geometry of the complex
- are equal to its coordination number
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The Correct Option is A
Solution and Explanation
Primary valencies are ionizable. If the complex ion exhibits positive charge, then primary valence corresponds to the number of charges present and is balanced by the same number of negative ions. Hence, primary valency can also be defined by the number of anions neutralizing the charge on the complex.
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Concepts Used:
Coordination Compounds
A coordination compound holds a central metal atom or ion surrounded by various oppositely charged ions or neutral molecules. These molecules or ions are re-bonded to the metal atom or ion by a coordinate bond.
Coordination entity:
A coordination entity composes of a central metal atom or ion bonded to a fixed number of ions or molecules.
Ligands:
A molecule, ion, or group which is bonded to the metal atom or ion in a complex or coordination compound by a coordinate bond is commonly called a ligand. It may be either neutral, positively, or negatively charged.