Question

Q 19. The number of unidentate
ligands in the complex ion is called
O (a) EAN
O
(b) primary valency
(c) oxidation number
O (d) Coordination number​

Answer 1

d) coordinator number

Answer 2

The number of unidentate  ligands in the complex ion is called the coordination number.

• In coordination chemistry, the considerable number of organic ligands bound to the central ion more precisely, the number of donor atoms is the coordination number.  
• In the usual way, coordination numbers are between two and nine, with most common being two, four and six.
• The number of established bonds is dependent on the metal ion and the organic ligands' considerable size, total charge, and an electron configuration.