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

CBSE BoardEnglish MediumSTD 12 ScienceChemistry5. Co-ordination chemistry1 Mark
MCQ
Total number of isomers possible for the complex $[Co(en)_2Cl_2]$ is
  • A
    $2$
  • ✓
    $3$
  • C
    $4$
  • D
    $5$
✓

Answer

Correct option: B.
$3$
b
Number of possible isomers for the complex $\left[ Co ( en )_{2} Cl _{2}\right] Cl$ will be (en=ethylenediamine) 3.
There are two geometrical isomers cis and trans. The trans isomer is optically inactive whereas the cis form exists in $d$ and $l$ forms.

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