Q.

Which of the following coordination compounds would exhibit optical isomerism?

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a

fac-tri amino-trichloro cobalt (III) ion

b

Diammine dichloro platinum (II)

c

dichloro-Bis(ethylene diamine) Cobalt (III) ion

d

Tris (Ethylene diamine) cobalt (III) Bromide

answer is W, B, C.

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Detailed Solution

dichloro-Bis(ethylene diamine) Cobalt (III) ion has three isomer, 2 optical isomer (cis and mirror image of cis), 1 trans isomer (optically inactive).

Tris-(ethylenediamine) cobalt(III) bromide is unsymmetrical and hence they show optical isomerism.

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