Chem101 Molecular Models Worksheet By Dr. Cheng-Yu Lai With Answer Key Page 10
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182014Spring CHEM101 Ch9-10 Review Worksheet
Modified by Dr. Cheng-Yu Lai,
C) 120°
D) 105°
E) 90°
Answer: E
36) How many of the following molecules are polar?
BrCl 3
CS 2
SiF 4
SO 3
A) 1
B) 2
C) 3
D) 4
E) 0
Answer: A
37) How many of the following molecules are polar?
PCl 5
COS
XeO 3
SeBr 2
A) 2
B) 0
C) 1
D) 3
E) 4
Answer: D
electron geometry (eg) – VSPER Mother structure geometry
38) Give the electron geometry (eg), molecular geometry (mg), and hybridization for NH 3 .
A) eg=tetrahedral, mg=trigonal planar, sp 2
B) eg=trigonal pyramidal, mg=trigonal pyramidal, sp 3
C) eg=tetrahedral, mg=trigonal pyramidal, sp 3
D) eg=trigonal pyramidal, mg=tetrahedral, sp 3
E) eg=trigonal planar, mg=trigonal planar, sp 2
Answer: C
39) Give the electron geometry (eg), molecular geometry (mg), and hybridization for H 2 O.
A) eg=tetrahedral, mg=bent, sp 3
B) eg=trigonal pyramidal, mg=trigonal pyramidal, sp 3
C) eg=tetrahedral, mg=trigonal pyramidal, sp 3
D) eg=bent, mg=bent, sp 2
E) eg=trigonal planar, mg=trigonal planar, sp 2
Answer: A
40) Give the electron geometry (eg), molecular geometry (mg), and hybridization for XeF 4 .
A) eg=tetrahedral, mg=tetrahedral, sp 3
B) eg=trigonal pyramidal, mg=trigonal pyramidal, sp 3
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