Multiple Choice
What is the molecular geometry of CCl_4?
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12. Molecular Shapes & Valence Bond Theory
Molecular Geometry
Multiple Choice
Which of the following molecules does NOT have an angular (bent) molecular geometry?
A
CO_2
B
SO_2
C
O_3
D
H_2O
Verified step by step guidance1
Step 1: Understand that molecular geometry depends on the arrangement of atoms and lone pairs around the central atom, which is predicted by the VSEPR (Valence Shell Electron Pair Repulsion) theory.
Step 2: Analyze each molecule's Lewis structure to determine the number of bonding pairs and lone pairs on the central atom. This will help predict the molecular shape.
Step 3: For CO_2, the central atom is carbon with two double bonds to oxygen atoms and no lone pairs, leading to a linear geometry.
Step 4: For SO_2, the central sulfur atom has one lone pair and two bonding pairs, which results in a bent (angular) shape due to lone pair repulsion.
Step 5: For O_3 and H_2O, both have lone pairs on the central atom causing the molecular geometry to be bent (angular). O_3 has resonance structures but overall bent shape, and H_2O has two lone pairs on oxygen causing a bent shape.
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