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Question 25. What is meant by stability of a coordination compound insolution State the factors which govern stability of complexes. |
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Answer» Stability of coordination compounds in a solution refers to the association of the two species i.e coordination sphere and counter ions involved in a state of equilibrium. Stability of complex depends on factors: (i) Charge on central atom:. More will be the charge on central atom more will be the strong bond between atom and ligand and more will be the stability of the complex. (ii) Basic nature of ligand: More will be the basic character of ligand , more it will try to donate the electrons to the metal atom, hence greater stability. (iii) Presence of chelate ring: The presence of chelate ring give more stability to the complex. (Stronger interaction) Stability of the compounds is defined as the measure of the resistance to replacement of the metal ligands with other ligands. ... Stability of the complex can be decided by the equilibrium constant of the dissociation equilibrium. |
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