COMEDK · Chemistry · 24. Coordination Compounds
Which of the following complex show optical isomerism?
(i) \(c i s-\left[\mathrm{COCl}(\mathrm{en})_2\left(\mathrm{NH}_3\right)\right]^{2+}\)
(ii) \(cis-\left[\mathrm{CrCl}_2(\mathrm{ox})_2\right]^{3-}\)
(iii) \(cis-[ \left.\mathrm{CO}(\mathrm{en})_2 \mathrm{Cl}_2\right] \mathrm{Cl}\)
(iv) \(cis- \left[\mathrm{CO}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right]^{+}\)
- A (i), (iv)
- B (i), (ii), (iv)
- C (i), (ii), (iii)
- D (i), (ii)
Answer & Solution
Correct Answer
(C) (i), (ii), (iii)
Step-by-step Solution
Detailed explanation
Optical isomerism in coordination complexes occurs when the complex lacks a plane of symmetry or center of inversion, making it chiral. (i) \(cis-[CoCl(en)_2(NH_3)]^{2+}\): This complex has two ethylenediamine (en) ligands and two different monodentate ligands. The cis-isomer…
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