Chem101 Molecular Models Worksheet By Dr. Cheng-Yu Lai With Answer Key Page 12
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182014Spring CHEM101 Ch9-10 Review Worksheet
Modified by Dr. Cheng-Yu Lai,
E) eg=tetrahedral, mg=trigonal pyramidal
Answer: B
47) Determine the electron geometry (eg) and molecular geometry (mg) of XeF 2 .
A) eg=trigonal bipyramidal, mg=bent
B) eg=linear, mg=linear
C) eg=tetrahedral, mg=linear
D) eg=trigonal bipyramidal, mg=linear
E) eg=tetrahedral, mg=bent
Answer: D
48) Determine the electron geometry (eg) and molecular geometry (mg) of XeF 4 .
A) eg=tetrahedral, mg=tetrahedral
B) eg=linear, eg=linear
C) eg=tetrahedral, mg=bent
D) eg=trigonal bipyramidal, mg=tetrahedral
E) eg=octahedral, mg=square planar
Answer: E
49) Consider the molecule below. Determine the molecular geometry at each of the 2 labeled carbons.
A) C1 = tetrahedral, C2 = linear
B) C1 = trigonal planar, C2= bent
C) C1 = bent, C2 = trigonal planar
D) C1 = trigonal planar, C2 = tetrahedral
E) C1 = trigonal pyramidal, C2 = see-saw
Answer: D
50) Place the following in order of increasing F-A-F bond angle, where A represents the central atom in each
molecule.
PF 4 ⁺
PF 3
OF 2
A) PF 3 < OF 2 < PF 4 ⁺
B) OF 2 < PF 3 < PF 4 ⁺
C) OF 2 < PF 4 ⁺ < PF 3
D) PF 4 ⁺ < OF 2 < PF 3
E) PF 4 ⁺ < PF 3 < OF 2
Answer: B
51) Place the following in order of decreasing X-A-X bond angle, where A represents the central atom and X
represents the outer atoms in each molecule.
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