Answer and explanation

Correct answer: D. Bent geometry, approximately 117 degrees

  1. Step 1: The central oxygen in ozone forms one single bond, one double bond, and carries one lone pair (steric number 3, sp^2). Step 2. Lone pair-bond pair repulsion compresses the bond angle slightly below 120 degrees to approximately 116.8 degrees (bent geometry). Answer: Bent geometry, approximately 117 degrees. Why not the others: Linear 180 degrees occurs with zero lone pairs on sp centers; trigonal planar requires three bond pairs; tetrahedral is steric number 4.

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