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What type of isomerism is shown by the complex [Cr(en)2Cl2]+? (2023)

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Question: What type of isomerism is shown by the complex [Cr(en)2Cl2]+? (2023)

Options:

  1. Geometrical
  2. Optical
  3. Linkage
  4. Coordination

Correct Answer: Optical

Exam Year: 2023

Solution: 

The complex [Cr(en)2Cl2]+ can show optical isomerism due to the presence of bidentate ligands (en = ethylenediamine) which can create non-superimposable mirror images.

What type of isomerism is shown by the complex [Cr(en)2Cl2]+? (2023)

Practice Questions

Q1
What type of isomerism is shown by the complex [Cr(en)2Cl2]+? (2023)
  1. Geometrical
  2. Optical
  3. Linkage
  4. Coordination

Questions & Step-by-Step Solutions

What type of isomerism is shown by the complex [Cr(en)2Cl2]+? (2023)
  • Step 1: Identify the complex. The complex is [Cr(en)2Cl2]+, where 'Cr' is chromium, 'en' is ethylenediamine, and 'Cl' is chloride.
  • Step 2: Understand the ligands. Ethylenediamine (en) is a bidentate ligand, meaning it can attach to the metal (Cr) at two points.
  • Step 3: Determine the geometry. The complex has a coordination number of 6, which typically leads to an octahedral geometry.
  • Step 4: Analyze the arrangement. In an octahedral complex with two bidentate ligands, the arrangement can create different spatial configurations.
  • Step 5: Identify optical isomerism. If the complex can form non-superimposable mirror images, it exhibits optical isomerism.
  • Step 6: Conclude. Since [Cr(en)2Cl2]+ can create such mirror images due to the bidentate nature of the ligands, it shows optical isomerism.
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