Question:
In the complex ion $\left[ Co \left( NH _{3}\right)_{6}\right]^{3+}$, the $NH _{3}$ molecules are linked to the central metal ion by
In the complex ion $\left[ Co \left( NH _{3}\right)_{6}\right]^{3+}$, the $NH _{3}$ molecules are linked to the central metal ion by
Updated On: Jul 28, 2022
- ionic bonds
- covalent bonds
- coordinate bonds
- hydrogen bonds
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The Correct Option is C
Solution and Explanation
A complex is formed, when ligand(s) donates its (their) electrons to the vacant $d$-orbital of transition metals. Since, the electrons are given by only ligands and used up by metals as well as ligands, the bond formed is called coordinate bond.
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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.