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5. Co-ordination chemistry — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistry5. Co-ordination chemistry1 Mark
MCQ
Three arrangement, are shown for the complex $[CoBr_2(NH_3)_2(en)]^{\oplus}$.  Which one is wrong statement?
  • A
    $I$ and $II$ are geometrical isomers
  • ✓
    $II$ and $III$ are optically active isomers
  • C
    $I$ and $III$ are optically active isomers
  • D
    $II$ and $III$ are geometrical isomers
✓

Answer

Correct option: B.
$II$ and $III$ are optically active isomers
b
$(b)\, II$ and $III$ are geometrical isomers as $II$ is trans while $III$ is $cis$ of the given complex. 

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