The total number of isomers of Co(en)₂ Cl₂ (en = ethylenedamine) is · ABC26IN0346

Subject: Inorganic Chemistry · Chapter: Coordination Chemistry · Topic: Coordination – General · Exam: GATE 2005-2021 · Marks: 2 · Difficulty: Easy

The total number of isomers of $\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}$ (en = ethylenedamine) is
(a)4
(b)3
(c)6
(d)5
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
[Co(en)₂Cl₂]⁺: trans plus a chiral cis pair — three isomers (b).

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