Question 1

According to VSEPR theory, if there are three electron domains in the valence shell of an atom, they will be arranged in a(n)________ geometry.

Accepted Answer

A) tetrahedral 
B) octahedral 
C) linear 
D) square planar 
E) bent 
A) tetrahedral 
B) octahedral 
C) linear 
D) square planar 
E) bent

Question 2

According to valence bond theory, which orbitals overlap in the formation of the bond in HCl?

Accepted Answer

A) 1s on H and 2p on Cl 
B) 2s on H and 3p on Cl 
C) 1s on H and 3s on Cl 
D) 1s on H and 3p on Cl 
E) 1s on H and 4p on Cl 
A) 1s on H and 2p on Cl 
B) 2s on H and 3p on Cl 
C) 1s on H and 3s on Cl 
D) 1s on H and 3p on Cl 
E) 1s on H and 4p on Cl

Question 3

Electron domains for single bonds exert greater force on adjacent domains than the electron domains for multiple bonds.

Accepted Answer

A) True 
 B)False

Question 4

A typical double bond consists of ________.

Accepted Answer

A) three sigma bonds 
B) three pi bonds 
C) one sigma and two pi bonds 
D) one sigma and one pi bond 
E) three ionic bonds 
A) three sigma bonds 
B) three pi bonds 
C) one sigma and two pi bonds 
D) one sigma and one pi bond 
E) three ionic bonds

Question 5

In a polyatomic molecule, "localized" bonding electrons are associated with ________.

Accepted Answer

A) one particular atom 
B) two particular atoms 
C) all of the atoms in the molecule 
D) all of the π bonds in the molecule 
E) two or more σ bonds in the molecule 
A) one particular atom 
B) two particular atoms 
C) all of the atoms in the molecule 
D) all of the π bonds in the molecule 
E) two or more σ bonds in the molecule

Question 6

According to MO theory, overlap of two p atomic orbitals produces ________.

Accepted Answer

A) two bonding molecular orbitals 
B) one bonding molecular orbital and one antibonding molecular orbital 
C) two bonding molecular orbitals and two antibonding molecular orbitals 
D) two bonding molecular orbitals and one antibonding molecular orbital 
E) three bonding molecular orbitals and three antibonding molecular orbitals 
A) two bonding molecular orbitals 
B) one bonding molecular orbital and one antibonding molecular orbital 
C) two bonding molecular orbitals and two antibonding molecular orbitals 
D) two bonding molecular orbitals and one antibonding molecular orbital 
E) three bonding molecular orbitals and three antibonding molecular orbitals

Question 7

The H-C-H bond angle in the CH4 ion is approximately ________.

Accepted Answer

A) 180 
B) 120 
C) 109.5 
D) 60 
E) 90 
A) 180 
B) 120 
C) 109.5 
D) 60 
E) 90

Question 8

Based on molecular orbital theory, the bond order of the H-H bond in the H2+ ion is ________.

Accepted Answer

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

Question 9

There is/are ________ π bond(s)in the molecule below.

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 4 
E) 16 
A) 0 
B) 1 
C) 2 
D) 4 
E) 16

Question 10

XeF4 is a polar molecule.

Accepted Answer

A) True 
 B)False

Question 11

For a molecule with the formula AB2, the molecular shape is ________.

Accepted Answer

A) linear or bent 
B) linear or trigonal planar 
C) linear or T-shaped 
D) T-shaped 
E) trigonal planar 
A) linear or bent 
B) linear or trigonal planar 
C) linear or T-shaped 
D) T-shaped 
E) trigonal planar

Question 12

ClF3 has "T-shaped" geometry. There is/are ________ non-bonding domain(s)in this molecule.

Accepted Answer

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

Question 13

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

Accepted Answer

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

Question 14

The molecular geometry of the SiH2Cl2 molecule is ________.

Accepted Answer

A) trigonal planar 
B) tetrahedral 
C) trigonal pyramidal 
D) octahedral 
E) T-shaped 
A) trigonal planar 
B) tetrahedral 
C) trigonal pyramidal 
D) octahedral 
E) T-shaped

Question 15

Based on molecular orbital theory, there is/are ________ unpaired electron(s)in the OF+ ion.

Accepted Answer

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

Question 16

The hybridization of the central atom in the XeF4 molecule is ________.

Accepted Answer

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

Question 17

Based on molecular orbital theory, the only molecule in the list below that has unpaired electrons is ________.

Accepted Answer

A) C2 
B) N2 
C) F2 
D) O2 
E) Li2 
A) C2 
B) N2 
C) F2 
D) O2 
E) Li2

Question 18

The molecular geometry of the BCl3 molecule is ________, and this molecule is ________.

Accepted Answer

A) trigonal pyramidal, polar 
B) trigonal pyramidal, nonpolar 
C) trigonal planar, polar 
D) trigonal planar, nonpolar 
E) trigonal bipyramidal, polar 
A) trigonal pyramidal, polar 
B) trigonal pyramidal, nonpolar 
C) trigonal planar, polar 
D) trigonal planar, nonpolar 
E) trigonal bipyramidal, polar

Question 19

The molecular geometry of the CHF3 molecule is ________, and the molecule is ________.

Accepted Answer

A) trigonal pyramidal, polar 
B) tetrahedral, nonpolar 
C) seesaw, nonpolar 
D) tetrahedral, polar 
E) seesaw, polar 
A) trigonal pyramidal, polar 
B) tetrahedral, nonpolar 
C) seesaw, nonpolar 
D) tetrahedral, polar 
E) seesaw, polar

Question 20

The F-B-F bond angle in the BF3 molecule is ________.

Accepted Answer

A) 90° 
B) 109.5° 
C) 120° 
D) 180° 
E) 60° 
A) 90° 
B) 109.5° 
C) 120° 
D) 180° 
E) 60°

Exam 9: Molecular Geometry and Bonding Theories

According to VSEPR theory, if there are three electron domains in the valence shell of an atom, they will be arranged in a(n)________ geometry.

According to valence bond theory, which orbitals overlap in the formation of the bond in HCl?

Electron domains for single bonds exert greater force on adjacent domains than the electron domains for multiple bonds.

A typical double bond consists of ________.

In a polyatomic molecule, "localized" bonding electrons are associated with ________.

According to MO theory, overlap of two p atomic orbitals produces ________.

The H-C-H bond angle in the CH4 ion is approximately ________.

Based on molecular orbital theory, the bond order of the H-H bond in the H2+ ion is ________.

There is/are ________ π bond(s)in the molecule below.

XeF4 is a polar molecule.

For a molecule with the formula AB2, the molecular shape is ________.

ClF3 has "T-shaped" geometry. There is/are ________ non-bonding domain(s)in this molecule.

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

The molecular geometry of the SiH2Cl2 molecule is ________.

Based on molecular orbital theory, there is/are ________ unpaired electron(s)in the OF+ ion.

The hybridization of the central atom in the XeF4 molecule is ________.

Based on molecular orbital theory, the only molecule in the list below that has unpaired electrons is ________.

The molecular geometry of the BCl3 molecule is ________, and this molecule is ________.

The molecular geometry of the CHF3 molecule is ________, and the molecule is ________.

The F-B-F bond angle in the BF3 molecule is ________.

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Thermochemistry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Gases

Liquids and Intermolecular Forces

Solids and Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Transition Metals and Coordination Chemistry

The Chemistry of Life: Organic and Biological Chemistry

Filters

The H-C-H bond angle in the CH₄ ion is approximately ________.

Based on molecular orbital theory, the bond order of the H-H bond in the H₂⁺ ion is ________.

XeF₄ is a polar molecule.

For a molecule with the formula AB₂, the molecular shape is ________.

ClF₃ has "T-shaped" geometry. There is/are ________ non-bonding domain(s)in this molecule.

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

The molecular geometry of the SiH₂Cl₂ molecule is ________.

Based on molecular orbital theory, there is/are ________ unpaired electron(s)in the OF⁺ ion.

The hybridization of the central atom in the XeF₄ molecule is ________.

The molecular geometry of the BCl₃ molecule is , and this molecule is .

The molecular geometry of the CHF₃ molecule is , and the molecule is .

The F-B-F bond angle in the BF₃ molecule is ________.