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For the complex ion dichlorido bis (ethylene diamine) cobalt (III), select the correct statement.
  • a)
    It has three isomers, two of them are optically active and one is optically inactive.
  • b)
    It has three isomers, all of them are optically active.
  • c)
    It has three isomers, all of them are optically inactive.
  • d)
    It has one optically active isomer and two geometrical isomers.
Correct answer is option 'A'. Can you explain this answer?
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Explanation:

The complex ion dichlorido bis(ethylene diamine) cobalt (III) has the formula [Co(en)2Cl2]+. Let's analyze the structure and isomers of this complex ion to determine the correct statement.

Structure:
The central cobalt (III) ion is coordinated by two ethylenediamine (en) ligands and two chloride (Cl) ligands. The ethylenediamine ligand is a bidentate ligand, meaning that it can form two coordination bonds with the central metal ion. The chloride ligand is a monodentate ligand, meaning that it can form only one coordination bond with the central metal ion.

Isomers:
Isomers are compounds that have the same chemical formula but different structural arrangements. In this case, there are three possible isomers for the complex ion [Co(en)2Cl2]+.

1. Geometrical isomerism:
Geometrical isomerism occurs when there is restricted rotation around a bond, resulting in different spatial arrangements. In the case of [Co(en)2Cl2]+, there are two possible geometrical isomers:

- cis-[Co(en)2Cl2]+: In this isomer, the two ethylenediamine ligands are adjacent to each other, and the two chloride ligands are also adjacent to each other.
- trans-[Co(en)2Cl2]+: In this isomer, the two ethylenediamine ligands are opposite to each other, and the two chloride ligands are also opposite to each other.

2. Optical isomerism:
Optical isomerism occurs when a compound is chiral, meaning it does not possess a plane of symmetry. Chiral compounds exist in two forms known as enantiomers, which are mirror images of each other. In the case of [Co(en)2Cl2]+, there is only one chiral center, which is the cobalt ion.

- Each geometrical isomer can exist as either an R or S enantiomer, resulting in two optically active isomers.
- The trans-[Co(en)2Cl2]+ isomer is optically inactive because its mirror image can be superimposed on it.

Conclusion:
Based on the analysis, the correct statement is option A. The complex ion dichlorido bis(ethylene diamine) cobalt (III) has three isomers, two of them are optically active (cis-[Co(en)2Cl2]+ R and S enantiomers) and one is optically inactive (trans-[Co(en)2Cl2]+).
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For the complex ion dichlorido bis (ethylene diamine) cobalt (III), select the correct statement.a)It has three isomers, two of them are optically active and one is optically inactive.b)It has three isomers, all of them are optically active.c)It has three isomers, all of them are optically inactive.d)It has one optically active isomer and two geometrical isomers.Correct answer is option 'A'. Can you explain this answer?
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For the complex ion dichlorido bis (ethylene diamine) cobalt (III), select the correct statement.a)It has three isomers, two of them are optically active and one is optically inactive.b)It has three isomers, all of them are optically active.c)It has three isomers, all of them are optically inactive.d)It has one optically active isomer and two geometrical isomers.Correct answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about For the complex ion dichlorido bis (ethylene diamine) cobalt (III), select the correct statement.a)It has three isomers, two of them are optically active and one is optically inactive.b)It has three isomers, all of them are optically active.c)It has three isomers, all of them are optically inactive.d)It has one optically active isomer and two geometrical isomers.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For the complex ion dichlorido bis (ethylene diamine) cobalt (III), select the correct statement.a)It has three isomers, two of them are optically active and one is optically inactive.b)It has three isomers, all of them are optically active.c)It has three isomers, all of them are optically inactive.d)It has one optically active isomer and two geometrical isomers.Correct answer is option 'A'. Can you explain this answer?.
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