JEE Main20254 Apr 2025Evening ShiftChemistryCoordination CompoundsActual
The correct order of [ FeF ₆ ]³⁻, [ CoF ₆ ]³⁻, [ Ni ( CO )₄ ] and [ Ni ( CN )₄ ]²⁻ complex species based on the number of unpaired electrons present is :
Options
- A[ FeF ₆ ]³⁻ [ CoF ₆ ]³⁻ [ Ni ( CN )₄ ]²⁻ [ Ni ( CO )₄ ]
- B[ Ni ( CN )₄ ]²⁻ [ FeF ₆ ]³⁻ [ CoF ₆ ]³⁻ [ Ni ( CO )₄ ]
- C[ CoF ₆ ]³⁻ [ FeF ₆ ]³⁻ [ Ni ( CO )₄ ] [ Ni ( CN )₄ ]²⁻
- D[ FeF ₆ ]³⁻ [ CoF ₆ ]³⁻ [ Ni ( CN )₄ ]²⁻= [ Ni ( CO )₄ ]
Correct answer
D. [ FeF ₆ ]³⁻ [ CoF ₆ ]³⁻ [ Ni ( CN )₄ ]²⁻= [ Ni ( CO )₄ ]
Step-by-step solution
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