Question:
$\left[C o(C N)_{6}\right]^{3-}$ , a complex ion of cobalt (III), absorbs radiations in violet region of the visible light. Its aqueous solution, therefore, appears
$\left[C o(C N)_{6}\right]^{3-}$ , a complex ion of cobalt (III), absorbs radiations in violet region of the visible light. Its aqueous solution, therefore, appears
Updated On: Jun 14, 2022
- pink
- orange
- blue
- yellow
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The Correct Option is D
Solution and Explanation
Yellow. The colour of the complex is complementary to that which is adsorbed.
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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.