BITSAT2021ChemistryCoordination CompoundsActual
[ Fe ( en )₂ ( H ₂ O )₂ ]²⁺+ en complex ( X ) . The correct statement about the complex (X) is -
Options
- Ait is a low spin complex
- Bit is diamagnetic
- Cit shows geometrical isomerism
- D(a) and (b) both
Correct answer
D. (a) and (b) both
Step-by-step solution
Complex X is [ Fe ( en )₃ right ]²⁺ ; as 'en' is a strong field ligand pairing of electrons will take place. [ Fe ( en )₃ ]²⁺ : d² s p³ hybridisation Hence, hybridisation is d² s p³ and complex is diamagnetic. As it has 3 bidentate symmetrical 'en' ligands so it will not show geometrical isomerism.