Question 1

Determine the electron geometry (eg)and molecular geometry (mg)of BrF3.

Accepted Answer

A) eg = trigonal planar,mg = trigonal planar 
B) eg = trigonal bipyramidal,mg = T-shape 
C) eg = trigonal planar,mg = bent 
D) eg = trigonal bipyramidal,mg = seesaw 
E) eg = tetrahedral,mg = trigonal pyramidal 
A) eg = trigonal planar,mg = trigonal planar 
B) eg = trigonal bipyramidal,mg = T-shape 
C) eg = trigonal planar,mg = bent 
D) eg = trigonal bipyramidal,mg = seesaw 
E) eg = tetrahedral,mg = trigonal pyramidal

Question 2

Consider the following compound.How many sigma and pi bonds does it contain? 
CH3CHCHCO2H

Accepted Answer

A) 9 sigma,4 pi 
B) 11 sigma,2 pi 
C) 9 sigma,2 pi 
D) 13 sigma,0 pi 
E) 6 sigma,2 pi 
A) 9 sigma,4 pi 
B) 11 sigma,2 pi 
C) 9 sigma,2 pi 
D) 13 sigma,0 pi 
E) 6 sigma,2 pi

Question 3

Draw the Lewis structure for OF2.What is the hybridization on the O atom?

Accepted Answer

A) sp 
B) sp3 
C) sp2 
D) sp3d 
E) sp3d2 
A) sp 
B) sp3 
C) sp2 
D) sp3d 
E) sp3d2

Question 4

Determine the electron geometry (eg),molecular geometry (mg),and polarity of SF6.

Accepted Answer

A) eg = trigonal bipyramidal,mg = trigonal bipyramidal,nonpolar 
B) eg = tetrahedral,mg = tetrahedral,polar 
C) eg = trigonal bipyramidal,mg = seesaw,polar 
D) eg = octahedral,mg = trigonal bipyramidal,nonpolar 
E) eg = octahedral,mg = octahedral,nonpolar 
A) eg = trigonal bipyramidal,mg = trigonal bipyramidal,nonpolar 
B) eg = tetrahedral,mg = tetrahedral,polar 
C) eg = trigonal bipyramidal,mg = seesaw,polar 
D) eg = octahedral,mg = trigonal bipyramidal,nonpolar 
E) eg = octahedral,mg = octahedral,nonpolar

Question 5

Using the VSEPR model,the molecular geometry of the central atom in PCl3 is ________.

Accepted Answer

A) trigonal pyramidal 
B) bent 
C) tetrahedral 
D) trigonal planar 
E) linear 
A) trigonal pyramidal 
B) bent 
C) tetrahedral 
D) trigonal planar 
E) linear

Question 6

Draw the Lewis structure for BrF5.What is the hybridization on the Br atom?

Accepted Answer

A) sp3d2 
B) sp3d 
C) sp3 
D) sp2 
E) sp 
A) sp3d2 
B) sp3d 
C) sp3 
D) sp2 
E) sp

Question 7

A molecule containing a central atom with sp3d hybridization has a(n)________ electron geometry.

Accepted Answer

A) tetrahedral 
B) linear 
C) octahedral 
D) trigonal planar 
E) trigonal bipyramidal 
A) tetrahedral 
B) linear 
C) octahedral 
D) trigonal planar 
E) trigonal bipyramidal

Question 8

$\quad$
-Draw the Lewis structure for SF6.What is the hybridization on the S atom?

Accepted Answer

A) sp 
B) sp2 
C) sp3 
D) sp3d 
E) sp3d2 
A) sp 
B) sp2 
C) sp3 
D) sp3d 
E) sp3d2

Question 9

Give the approximate bond angle for a molecule with trigonal bipyramidal electron geometry and seesaw molecular geometry.

Accepted Answer

A) <120° (equatorial),90° (axial) 
B) 120° (equatorial),<90° (axial) 
C) <90° (equatorial),<90° (axial) 
D) 120° (equatorial),90° (axial) 
E) <120° (equatorial),<90° (axial) 
A) <120° (equatorial),90° (axial) 
B) 120° (equatorial),<90° (axial) 
C) <90° (equatorial),<90° (axial) 
D) 120° (equatorial),90° (axial) 
E) <120° (equatorial),<90° (axial)

Question 10

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

Accepted Answer

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 
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

Question 11

What is the molecular geometry of TeCl4?

Accepted Answer

A) seesaw 
B) square planar 
C) square pyramidal 
D) tetrahedral 
A) seesaw 
B) square planar 
C) square pyramidal 
D) tetrahedral

Question 12

Give the approximate bond angle for a molecule with tetrahedral electron geometry and trigonal pyramidal molecular geometry.

Accepted Answer

A) 180° 
B) <180° 
C) <109.5° 
D) 109.5° 
E) <120° 
A) 180° 
B) <180° 
C) <109.5° 
D) 109.5° 
E) <120°

Question 13

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

Accepted Answer

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 
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

Question 14

How many of the following molecules have sp2 hybridization on the central atom? 
HCN $\quad$SO2 $\quad$OCl2 $\quad$XeCl2

Accepted Answer

A) 4 
B) 3 
C) 2 
D) 1 
E) 0 
A) 4 
B) 3 
C) 2 
D) 1 
E) 0

Question 15

Which of the following statements is TRUE?

Accepted Answer

A) The total number of molecular orbitals formed doesn't always equal the number of atomic orbitals in the set. 
B) A bond order of 0 represents a stable chemical bond. 
C) When two atomic orbitals come together to form two molecular orbitals,one molecular orbital will be lower in energy than the two separate atomic orbitals and one molecular orbital will be higher in energy than the separate atomic orbitals. 
D) Electrons placed in antibonding orbitals stabilize the ion/molecule. 
A) The total number of molecular orbitals formed doesn't always equal the number of atomic orbitals in the set. 
B) A bond order of 0 represents a stable chemical bond. 
C) When two atomic orbitals come together to form two molecular orbitals,one molecular orbital will be lower in energy than the two separate atomic orbitals and one molecular orbital will be higher in energy than the separate atomic orbitals. 
D) Electrons placed in antibonding orbitals stabilize the ion/molecule.

Question 16

Determine the hybridization about each interior atom in the following structure.Sketch the three-dimensional structure and label the interior atoms with their corresponding hybridization.
CH2CHCCCH3

Accepted Answer

The sketch should show all of the approp

Question 17

Determine the electron geometry (eg)and molecular geometry (mg)of the underlined carbon in CH3CN.

Accepted Answer

A) eg = tetrahedral,mg = tetrahedral 
B) eg = linear,mg = trigonal planar 
C) eg = trigonal planar,mg = bent 
D) eg = linear,mg = linear 
E) eg = trigonal planar,mg = trigonal planar 
A) eg = tetrahedral,mg = tetrahedral 
B) eg = linear,mg = trigonal planar 
C) eg = trigonal planar,mg = bent 
D) eg = linear,mg = linear 
E) eg = trigonal planar,mg = trigonal planar

Question 18

A molecule containing a central atom with sp3 hybridization has a(n)________ electron geometry.

Accepted Answer

A) linear 
B) trigonal bipyramidal 
C) octahedral 
D) tetrahedral 
E) bent 
A) linear 
B) trigonal bipyramidal 
C) octahedral 
D) tetrahedral 
E) bent

Question 19

Describe a pi bond.

Accepted Answer

A) side by side overlap of p orbitals 
B) end to end overlap of p orbitals 
C) s orbital overlapping with the end of a p orbital 
D) overlap of two s orbitals 
E) p orbital overlapping with a d orbital 
A) side by side overlap of p orbitals 
B) end to end overlap of p orbitals 
C) s orbital overlapping with the end of a p orbital 
D) overlap of two s orbitals 
E) p orbital overlapping with a d orbital

Question 20

Use the molecular orbital diagram shown to determine which of the following is least stable.

Accepted Answer

A) F2 
B) F22+ 
C) Ne22+ 
D) O22+ 
E) F2- 
A) F2 
B) F22+ 
C) Ne22+ 
D) O22+ 
E) F2-

Exam 10: Chemical Bonding II: Molecular Shapes, valence Bond Theory, and Molecular Orbital Theory

Determine the electron geometry (eg)and molecular geometry (mg)of BrF3.

Consider the following compound.How many sigma and pi bonds does it contain? CH3CHCHCO2H

Draw the Lewis structure for OF2.What is the hybridization on the O atom?

Determine the electron geometry (eg),molecular geometry (mg),and polarity of SF6.

Using the VSEPR model,the molecular geometry of the central atom in PCl3 is ________.

Draw the Lewis structure for BrF5.What is the hybridization on the Br atom?

A molecule containing a central atom with sp3d hybridization has a(n)________ electron geometry.

\quad -Draw the Lewis structure for SF6.What is the hybridization on the S atom?

Give the approximate bond angle for a molecule with trigonal bipyramidal electron geometry and seesaw molecular geometry.

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

What is the molecular geometry of TeCl4?

Give the approximate bond angle for a molecule with tetrahedral electron geometry and trigonal pyramidal molecular geometry.

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

How many of the following molecules have sp2 hybridization on the central atom? HCN \quad SO2 \quad OCl2 \quad XeCl2

Which of the following statements is TRUE?

Determine the hybridization about each interior atom in the following structure.Sketch the three-dimensional structure and label the interior atoms with their corresponding hybridization. CH2CHCCCH3

Determine the electron geometry (eg)and molecular geometry (mg)of the underlined carbon in CH3CN.

A molecule containing a central atom with sp3 hybridization has a(n)________ electron geometry.

Describe a pi bond.

Use the molecular orbital diagram shown to determine which of the following is least stable.

Units of Measurement for Physical and Chemical Change

Atoms and Elements

Molecules,compounds,and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Liquids, solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Organic Chemistry II: Reactions

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

Determine the electron geometry (eg)and molecular geometry (mg)of BrF₃.

Consider the following compound.How many sigma and pi bonds does it contain? CH₃CHCHCO₂H

Draw the Lewis structure for OF₂.What is the hybridization on the O atom?

Determine the electron geometry (eg),molecular geometry (mg),and polarity of SF₆.

Using the VSEPR model,the molecular geometry of the central atom in PCl₃ is ________.

Draw the Lewis structure for BrF₅.What is the hybridization on the Br atom?

A molecule containing a central atom with sp³^d hybridization has a(n)________ electron geometry.

$\quad$ -Draw the Lewis structure for SF₆.What is the hybridization on the S atom?

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

What is the molecular geometry of TeCl₄?

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

How many of the following molecules have sp² hybridization on the central atom? HCN $\quad$ SO₂ $\quad$ OCl₂ $\quad$ XeCl₂

Determine the hybridization about each interior atom in the following structure.Sketch the three-dimensional structure and label the interior atoms with their corresponding hybridization. CH₂CHCCCH₃

Determine the electron geometry (eg)and molecular geometry (mg)of the underlined carbon in CH₃CN.

A molecule containing a central atom with sp³ hybridization has a(n)________ electron geometry.