JEE Advanced Chemistry question

Which of the following coordination compounds would exhibit optical isomerism

(A)Pentaamminenitrocobalt(III) iodide
(B)Diamminedichloroplatinum(II)
(C)-dicyanobis(ethylenediamine)chromium(III) chloride
(D)-(ethylenediamine)cobalt(III) bromideCorrect

Answer: (D)

Solution

(tris-ethylenediaminecobalt(III) bromide), with three identical bidentate chelate rings arranged helically around the metal, is chiral and shows optical isomerism. (a) has only monodentate

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Question ID VK-160143