Manipal MET2017ChemistryCoordination Compounds
Which one of the following complexes is an outer orbital complex ?
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
Complex ion Hybridisation on central atom aligned & [ Fe ( CN )₆ ]⁴⁻ d^2 s p^3 (Inner) & [ Mn ( CN )₆ ]⁴⁻ d^2 s p^3 (Inner) & [ Co ( NH ₃ )₆ ]³⁺ & d^2 s p^3 (Inner) & [ Ni ( NH ₃ )₆ ]²⁺ s p^3 d^2 (Outer) aligned