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Question:
Which species does not exist?
Which species does not exist?
Updated On: Jun 7, 2022
- $ {{(SiC{{l}_{6}})}^{2-}} $
- $ CCl_{6}^{2-} $
- $ GeCl_{6}^{2-} $
- $ AlCl_{4}^{-} $
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The Correct Option is B
Solution and Explanation
$ CCl_{6}^{2-} $ does not exist. The reason is that carbon has no d-orbital, hence it cannot combine with 6 chlorine-atoms. All others (Si, Ge and Al) have d-orbital, hence form the given ions.
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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.
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