Multiple Choice
Which of the following statements correctly distinguishes between trigonal planar and trigonal pyramidal molecular geometries?
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Molecular Geometry
Multiple Choice
What is the molecular geometry of CS_2?
A
Bent
B
Trigonal planar
C
Linear
D
Tetrahedral
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Verified step by step guidance1
Identify the central atom in the molecule CS_2, which is carbon (C).
Determine the number of electron domains around the central atom by counting the bonds and lone pairs. Carbon forms two double bonds with sulfur atoms and has no lone pairs.
Use the VSEPR (Valence Shell Electron Pair Repulsion) theory to predict the shape. With two regions of electron density and no lone pairs, the electron domains will arrange themselves to minimize repulsion.
According to VSEPR theory, two electron domains around the central atom arrange linearly, with a bond angle of approximately 180 degrees.
Conclude that the molecular geometry of CS_2 is linear.
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