Coordination Compounds Ques 9

9. Which of the following coordination compounds would exhibit optical isomerism?

[2004]

(a) pentaamminenitrocobalt(III) iodide

(b) diamminedichloroplatinum(II)

(c) trans-dicyanobis (ethylenediamine) chromium (III) chloride

(d) tris-(ethylendiamine) cobalt (III) bromide

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Answer:

Correct Answer: 9.(d)

Solution:

(d) The optical isomers are pair of molecules which are non superimposable mirror images of each other.

The two optically active isomers are collectively called enantiomers.