Which complex is diamagnetic?
[Fe(CN)6]4− (Fe₂+, d6) low spin has 0 unpaired electrons.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Werner's Theory and Definitions - Ligands Coordination Number
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[Fe(CN)6]4− (Fe₂+, d6) low spin has 0 unpaired electrons.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Werner's Theory and Definitions - Ligands Coordination Number
[Co(NH₃)6]3+ (Co₃+, d6) with strong field NH₃ in an octahedral field is low spin (t2g6), with 0 unpaired electrons.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Colour and Magnetic Properties and Stability and Importance
[Fe(H₂O)6]2+ (Fe₂+, d6) is high spin. With 6 CN− it becomes [Fe(CN)6]4−, low spin (0 unpaired electrons).
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Colour and Magnetic Properties and Stability and Importance
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