Manipal MET2010ChemistryCoordination Compounds
Which one of the following complexes is an outer orbital complex? (Atomic numbers Mn =25, Fe =26, Co =27 , Ni =28)
Options
- A[ Fe ( CN )₆ ]⁴⁻
- B[ Mn ( CN )₆ ]⁴⁻
- C[ Co ( NH ₃ )₆ ]³⁺
- D[ Ni ( NH ₃ )₆ ]²⁺
Correct answer
D. [ Ni ( NH ₃ )₆ ]²⁺
Step-by-step solution
The complex in which nd orbitals are used in hybridisation, are called outer orbital complex. (a) [ Fe ( CN )₆ ]⁴⁻= (b) [ Mn ( CN )₆ ]⁴⁻= (c) [ Co ( NH ₃ )₆ ]³⁺= (d) [ Ni ( NH ₃ )₆ ]²⁺=