The optically active species among the following is : — Coordination Compounds Chemistry Question

💡 Solution & Explanation

Step 1: Highly symmetric octahedral complexes like [Cr(NH3)6]^3+, [Co(CN)6]^3-, and [Ru(NH3)6]^3+ belong to the Oh point group and are optically inactive. Step 2: Glycinate (gly) is an unsymmetrical bidentate ligand. Its tris-complex [Co(gly)3] (type [M(AB)3]) exists as fac and mer geometrical isomers. Step 3: Both the fac and mer isomers of [Co(gly)3] are completely asymmetric and chiral, meaning the species is optically active, matching option (c).