MHT CET202619 April 2026Evening ShiftChemistryCoordination CompoundsActual
Which from following complexes is an example of MA ₄ BC type distereoisomers ?
Options
- A[ Pt ( NH ₃)( H ₂ O ) , Cl ₂]
- B[ Pt ( NH ₃)₄ , ClBr ]²⁺
- CPt ( NH ₃)₂ , Cl ₂
- D[ Co ( NH ₃)₄ , Cl ₂]^+
Correct answer
B. [ Pt ( NH ₃)₄ , ClBr ]²⁺
Step-by-step solution
The general formula MA ₄ BC represents an octahedral complex with one central metal atom M , four identical ligands A , and two different ligands B and C . Analyzing the given options: [ Pt ( NH ₃)( H ₂ O ) , Cl ₂] is of the type MA ₂ BC (where A = Cl , B = NH ₃ , C = H ₂ O ). [ Pt ( NH ₃)₄ , ClBr ]²⁺ is of the type MA ₄ BC (where A = NH ₃ , B = Cl , C = Br ). Pt ( NH ₃)₂ , Cl ₂ is of the type MA ₂ B ₂ (where A = NH ₃ , B = Cl ). [ Co ( NH ₃)₄ , Cl ₂]^+ is of the type MA ₄ B ₂ (where A = NH ₃ , B = Cl ). Thus, [ Pt