True or false: coordination number

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   Coordination number counts the donor atoms bonded to the metal.

2. Statement is true

   No

   Statement

   Pi bonds between ligand and metal are counted too.

3. Statement is true

   Yes

   Statement

   Only sigma bonds are counted for coordination number.

4. Statement is true

   Yes

   Statement

   In [PtCl₆]²⁻ the coordination number of Pt is 6.

5. Statement is true

   No

   Statement

   In [Ni(NH₃)₄]²⁺ the coordination number of Ni is 6.

Explanation