[Olympiad] How many optical isomers are possible for the octahedral complex [Co(en)₃]³⁺? (en = ethylenediamine)
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📝 Detailed explanation
The complex [Co(en)₃]³⁺ is a chiral molecule because it lacks a plane of symmetry. It exists as a pair of non-superimposable mirror images (enantiomers), known as the Delta (Δ) and Lambda (Λ) isomers.
