Choose the Best Answer · Q19
Q.Fac-mer isomerism is shown by
(a) [Co(en)₃]³⁺
(b) [Co(NH₃)₄(Cl)₂]⁺
(c) [Co(NH₃)₃(Cl)₃]
(d) [Co(NH₃)₅SO₄]Cl
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Start your 14-day free trial to unlock the full solution →Step 1. Fac-mer isomerism (Section 5.5.2) is specifically defined for octahedral complexes of the type [MA₃B₃] -- three of one ligand and three of another.
Step 2. [Co(en)₃]³⁺ is [M(xx)₃] (three identical bidentate ligands) -- shows optical isomerism, not fac-mer.
Step 3. [Co(NH₃)₄(Cl)₂]⁺ is [MA₄B₂] -- shows cis/trans geometrical isomerism, not fac-mer. …
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