KCET2020ChemistryCoordination Compounds
The coordination number of F e and C o in the complex ions, . Fe ( C ₂ O ₄ )₃ ]³⁻ and [ Co ( SCN )₄ ]²⁻ are respectively
Options
- A3 and 4
- B6 and 8
- C4 and 6
- D6 and 4
Correct answer
D. 6 and 4
Step-by-step solution
The coordination number of Fe in [ Fe ( C ₂ O ₄ )₃ ]³⁺ is 6 and Co in [ Co ( SCN )₄ ]²⁻ is 4 . It is because C ₂ O ₄ is a bidentate ligand. So, 3 2=6 SCN is a monodendate ligand 4 1=4 So, depending upon the number of the ligands, we can calculate the coordination number of central metal atom.