Which of the following complexes exhibits geometrical isomerism?

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Question: Which of the following complexes exhibits geometrical isomerism?

Options:

Correct Answer: [Co(NH3)3Cl3]

Solution:

[Co(NH3)3Cl3] can exhibit geometrical isomerism due to the presence of different ligands in a square planar geometry.

Which of the following complexes exhibits geometrical isomerism?

Which of the following complexes exhibits geometrical isomerism?

Step 1: Understand what geometrical isomerism is. It occurs when a compound can have the same formula but different arrangements of atoms in space.
Step 2: Identify the complex in the question, which is [Co(NH3)3Cl3].
Step 3: Note the ligands in the complex: there are three NH3 (ammonia) ligands and three Cl (chloride) ligands.
Step 4: Recognize that geometrical isomerism is possible in square planar complexes when there are different types of ligands.
Step 5: Determine the geometry of the complex. [Co(NH3)3Cl3] can adopt a square planar geometry.
Step 6: Since there are different ligands (NH3 and Cl), the complex can have different arrangements, leading to geometrical isomers.

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