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The bond angle in Cl,0 is expected to be approximately O 90°

The bond angle in Cl,0 is expected to be approximately O 90°

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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### Bond Angle in Dichlorine Monoxide (Cl₂O) **Question:** The bond angle in Cl₂O is expected to be approximately: - 90° - 180° - 145° - 120° - 109.5° **Explanation:** This question involves the molecular geometry and bond angles in the compound **Dichlorine Monoxide (Cl₂O)**. **Key Concepts:** - The bond angle can be predicted using the **VSEPR Theory (Valence Shell Electron Pair Repulsion Theory)**. - In Cl₂O, the central oxygen atom has two bonded pairs of electrons and two lone pairs. **Possible Bond Angles:** - **90°** – Often associated with octahedral geometry (six electron domains around the central atom). - **180°** – Typical of a linear molecular geometry. - **145°** – Not a common bond angle according to standard VSEPR geometries. - **120°** – Found in trigonal planar geometry (three electron domains). - **109.5°** – Found in tetrahedral geometry (four electron domains). Given that the oxygen in Cl₂O has four electron domains (two bonds and two lone pairs), the expected bond angle is slightly less than the tetrahedral angle due to lone pair-bond pair repulsion, making it close to **109.5°**. **Correct Answer:** - **109.5°** This detailed understanding will help students predict bond angles based on the molecular geometry derived from the VSEPR theory.
Transcribed Image Text:### Bond Angle in Dichlorine Monoxide (Cl₂O) **Question:** The bond angle in Cl₂O is expected to be approximately: - 90° - 180° - 145° - 120° - 109.5° **Explanation:** This question involves the molecular geometry and bond angles in the compound **Dichlorine Monoxide (Cl₂O)**. **Key Concepts:** - The bond angle can be predicted using the **VSEPR Theory (Valence Shell Electron Pair Repulsion Theory)**. - In Cl₂O, the central oxygen atom has two bonded pairs of electrons and two lone pairs. **Possible Bond Angles:** - **90°** – Often associated with octahedral geometry (six electron domains around the central atom). - **180°** – Typical of a linear molecular geometry. - **145°** – Not a common bond angle according to standard VSEPR geometries. - **120°** – Found in trigonal planar geometry (three electron domains). - **109.5°** – Found in tetrahedral geometry (four electron domains). Given that the oxygen in Cl₂O has four electron domains (two bonds and two lone pairs), the expected bond angle is slightly less than the tetrahedral angle due to lone pair-bond pair repulsion, making it close to **109.5°**. **Correct Answer:** - **109.5°** This detailed understanding will help students predict bond angles based on the molecular geometry derived from the VSEPR theory.
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