9 public questions tagged with this topic.
Primary valence is the oxidation state. In [CoCl₂(NH₃)4]Cl, the complex [CoCl₂(NH₃)4]+ has a +1 charge (balanced by 1 Cl−). NH₃ is neutral, Cl− is −1. Thus, Co’s oxidation state = +3 (since +3 + 2(−1) = +1).
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Werner's Theory and Definitions - Ligands Coordination Number
Primary valence (oxidation state) of Co is +3 (balancing 3 Cl−). Secondary valence (coordination number) is 6 (6 NH₃). Sum = 3 + 6 = 9.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Werner's Theory and Definitions - Ligands Coordination Number
In [Ni(en)2Cl₂], en is neutral, 2 Cl− balance Ni, making Ni +2. Primary valence is the oxidation state, so 2.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Isomerism - Optical Isomerism and Linkage Ionisation Solvate
Primary valence is the oxidation state. In [Cr(H₂O)6]Cl₃, Cr is +3 (balancing 3 Cl−), aligning with Werner’s theory.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Isomerism - Geometrical Isomerism in Coordination Compounds
In [Ni(H₂O)6]Cl₂, Ni is +2 (primary valence).
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Isomerism - Geometrical Isomerism in Coordination Compounds
Primary valence is the oxidation state. In [Ni(NH₃)6]Cl₂, NH₃ is neutral, and 2 Cl− balance [Ni(NH₃)6]2+, so Ni is +2.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Crystal Field Theory - CFT and Crystal Field Splitting and CFSE
In [Co(NH₃)6]Cl₃, Co is +3.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Crystal Field Theory - CFT and Crystal Field Splitting and CFSE
In [Mn(H₂O)4Cl₂]Cl, [Mn(H₂O)4Cl₂]+ balances 1 Cl−. Mn is +3, 2 Cl− = −2, charge = +1. Primary valence = +3.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Bonding - Valence Bond Theory and Hybridisation
Primary valence is the oxidation state. Co is +3.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Bonding - Valence Bond Theory and Hybridisation
