Which one of the following complexes shows optical isomerism?
(1) cis[Co(en)2Cl2]Cl
(2) trans[Co(en)2Cl2]Cl
(3) [Co(NH3)4Cl2]Cl
(4) [Co(NH3)3Cl3] (en = ethylenediamine)
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(1),cis [Co(en)2Cl2]Cl.
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.This is because, the coordination cation [Co(en)2Cl2]+ produces non-superimposable images.
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Answer:
(4) [Co(NH3)3Cl3] (en = ethylenediamine)
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