Chemical Bond and Answer

Chemistry: A Molecular Approach (Tro) Chapter 10

Chemical Bonding II: Molecular Shapes, Valance Bond Theory, and Molecular Orbital Theory
1)

Determine the electron geometry (eg) and molecular geometry(mg) of BCl3.
A)

eg=trigonal planar, mg=trigonal planar
B)

eg=tetrahedral, mg=trigonal planar
C)

eg=tetrahedral, mg=trigonal pyramidal
D)

eg=trigonal planar, mg=bent
E)

eg=trigonal bipyramidal, mg= trigonal bipyramidal
Answer:

A
2)

Determine the electron geometry (eg), molecular geometry (mg), and polarity of SO2.
A)

eg=tetrahedral, mg=bent, polar
B)

eg=trigonal planar, mg=bent, polar
C)

eg=linear, mg=linear, nonpolar
D)

eg=tetrahedral, mg=tetrahedral, nonpolar
E)

eg=trigonal pyramidal, mg=trigonal pyramidal, polar
Answer:

B
3)

Determine the electron geometry (eg), molecular geometry (mg), and polarity of SO3.
A)

eg=tetrahedral, mg=trigonal pyramidal, polar
B)

eg=tetrahedral, mg=tetrahedral, nonpolar
C)

eg=trigonal planar, mg=trigonal planar, nonpolar
D)

eg= trigonal bipyramidal, mg=trigonal planar, polar
E)

eg=trigonal pyramidal, mg=bent, nonpolar
Answer:

C
4)

Determine the electron geometry (eg) and molecular geometry (mg) of CO32⁻.
A)

eg=tetrahedral, mg=tetrahedral
B)

eg=tetrahedral, mg=trigonal pyramidal
C)

eg=trigonal planar, mg=bent
D)

eg=trigonal planar, mg=trigonal planar
E)

eg=tetrahedral, mg=trigonal planar
Answer:

D
5)

Determine the electron geometry (eg) and molecular geometry (mg) of SiF4.
A)

eg=tetrahedral, mg=trigonal pyramidal
B)

eg=octahedral, mg=square planar
C)

eg=trigonal bipyramidal, mg=trigonal pyramidal
D)

eg=tetrahedral, mg=bent
E)

eg=tetrahedral, mg=tetrahedral
Answer:

E

6)

Determine the electron geometry (eg) and molecular geometry (mg) of PF5.
A)

eg=trigonal bipyramidal, mg=trigonal bipyramidal
B)