The total number of Ligands attached to the central metal ion through coordination (sigma) bond is called
A) Valency of the metal ion
B) Oxidation state of the metal ion
C) Coordination number of metal ion
D) None of the above
Answers
Explanation:
The number of ligands around a metal ion bonded by sigma bonds. Coordination number is the maximum covalency shown by a metal or metal ion. It is the maximum number of ligands attached to the metal by sigma bonds or coordinate bonds. Coordination number is the maximum covalency shown by a metal or metal ion.
12th/Chemistry
Coordination Compounds
Answer :
★ Coordination number : It is the total number of coordinate bonds through which the central metal atom/ion is attached with ligands
Hence, (C) is the correct answer.
Related Terms :
★ Coordination sphere : The central metal atom/ion and the ligands which are directly attached to it, are enclosed in square bracket and is collectively known as coordination sphere.
★ Counter ion : These are the ionisable groups written outside the bracket.
★ Coordination polyhedron : It is the spatial arrangement of the ligands around the central metal atom/ion.