10 public questions tagged with this topic.
In [Fe(CN)5NO]2−, NO is NO+ (+1), 5 CN− = −5. Overall charge is −2. Thus, x + (−5) + 1 = −2, x = +2, but the sphere’s charge is −2.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Werner's Theory and Definitions - Ligands Coordination Number
Fe₂+ (d6), weak field H₂O, octahedral, high spin: t2g4 eg2. Ratio = 2 : 4 = 1 : 2.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Werner's Theory and Definitions - Ligands Coordination Number
In [Fe(H₂O)5Cl]SO₄, the coordination sphere [Fe(H₂O)5Cl]+ contains 5 H₂O molecules as ligands.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Werner's Theory and Definitions - Ligands Coordination Number
2 en (4 atoms) + 2 Cl− = 6.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Werner's Theory and Definitions - Ligands Coordination Number
In [Fe(NH₃)4Cl₂]NO₃, [Fe(NH₃)4Cl₂]+ balances NO₃−. Fe is +3, 2 Cl− = −2, 4 NH₃ = 0. Charge = +3 − 2 = +1.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Nomenclature of Coordination Compounds
[Fe(CO)4] (Fe₀, d8) with 4 ligands is tetrahedral, using sp3 hybridization.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Nomenclature of Coordination Compounds
Fe₃+ (d5) in [FeF₆]3− (octahedral) with weak field F− is high spin (5 unpaired electrons). Magnetic moment = √[5(5+2)] = √35 ≈ 5.92 BM.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Colour and Magnetic Properties and Stability and Importance
NO is typically NO+ (+1). Thus Fe is +1.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Colour and Magnetic Properties and Stability and Importance
In [Fe(H₂O)3Cl₃], 3 H₂O ligands each provide 1 O atom, totaling 3 oxygen atoms.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Colour and Magnetic Properties and Stability and Importance
[Fe(CN)6]4− (Fe₂+, d6) is octahedral with strong field CN−, forming a low-spin complex. It uses inner d orbitals, giving d2sp3 hybridization.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Bonding - Valence Bond Theory and Hybridisation
