Question:
The most stable complex among the following is
The most stable complex among the following is
Updated On: Aug 15, 2022
- $ K_3[A1(C_2O_4)_3] $
- $[Pt(en)_2]Cl_2 $
- $[Ag(NH_3)_2]CI $
- $ K_2[Ni(EDTA)]$
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The Correct Option is D
Solution and Explanation
In the complex $K_2[Ni(EDTA)]$, EDTA is a hexadentate ligand. Such a complex will be more stable than complexes formed with bidentate ligands
like $C_2O^{2-}_4 \, , (en)_2$ or monodentate ligand, $NH_3$.
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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.