JEE Main2012ChemistryCoordination CompoundsActual
Which of the following complex ions will exhibit optical isomerism? (en = 1, 2-diamine ethane).
Options
- A[ Cr ( NH ₃ )₂ Cl ₂ ]⁺
- B[ Co ( en )₂ Cl ₂ ]⁺
- C[ Co ( NH ₃ )₄ Cl ₂ ]⁺
- D[ Zn ( en )₂ ]²⁺
Correct answer
B. [ Co ( en )₂ Cl ₂ ]⁺
Step-by-step solution
Non superimposable mirror images are called optical isomers and may be described as "chiral'. They are also called enantiomers and rotate plane polarised light in opposite directions.