5 public questions tagged with this topic.
[Mn(H₂O)6]2+ (Mn₂+, d5) with weak field H₂O is high spin (t2g3 eg2), 5 unpaired electrons, the maximum among options.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Crystal Field Theory - CFT and Crystal Field Splitting and CFSE
From the spectrochemical series, F− is the weakest field ligand.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Crystal Field Theory - CFT and Crystal Field Splitting and CFSE
[MnF₆]3− (Mn₃+, d4) high spin has 4 unpaired electrons.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Crystal Field Theory - CFT and Crystal Field Splitting and CFSE
For d4 high spin: t2g3 eg1, 4 unpaired. Mn₃+ fits.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Crystal Field Theory - CFT and Crystal Field Splitting and CFSE
Ni₂+ (d8) in a tetrahedral field (e.g., [NiCl₄]2−) with weak field Cl− has e4 t24, 2 unpaired electrons, making it paramagnetic.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Colour and Magnetic Properties and Stability and Importance
