Question 1

There are __________ σ and __________ π bonds in the H2C-C-CH2 molecule.

Accepted Answer

A) 4, 2 
B) 6, 4 
C) 2, 2 
D) 2, 6 
E) 6, 2 
A) 4, 2 
B) 6, 4 
C) 2, 2 
D) 2, 6 
E) 6, 2

Question 2

In order to produce sp2 hybrid orbitals, __________ s atomic orbital(s)and __________ p atomic orbital(s)must be mixed.

Accepted Answer

A) one, two 
B) one, three 
C) one, one 
D) two, two 
E) two, three 
A) one, two 
B) one, three 
C) one, one 
D) two, two 
E) two, three

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

The more effectively two atomic orbitals overlap, __________.

Accepted Answer

A) the more bonding MOs will be produced by the combination 
B) the higher will be the energy of the resulting bonding MO and the lower will be the energy of the resulting antibonding MO 
C) the higher will be the energies of both bonding and antibonding MOs that result 
D) the fewer antibonding MOs will be produced by the combination 
E) the lower will be the energy of the resulting bonding MO and the higher will be the energy of the resulting antibonding MO 
A) the more bonding MOs will be produced by the combination 
B) the higher will be the energy of the resulting bonding MO and the lower will be the energy of the resulting antibonding MO 
C) the higher will be the energies of both bonding and antibonding MOs that result 
D) the fewer antibonding MOs will be produced by the combination 
E) the lower will be the energy of the resulting bonding MO and the higher will be the energy of the resulting antibonding MO

Question 5

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°

Question 6

The molecular geometry of the SF2 molecule is __________.

Accepted Answer

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

Question 7

Using the VSEPR model, the electron-domain geometry of the central atom in SF4 is __________.

Accepted Answer

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

Question 8

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 9

Using the VSEPR model, the electron-domain geometry of the central atom in SF2 is __________.

Accepted Answer

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

Question 10

The hybridization of carbon in the H-CN: molecule is __________.

Accepted Answer

A) sp2 
B) s2p 
C) s3p 
D) sp 
E) sp3 
A) sp2 
B) s2p 
C) s3p 
D) sp 
E) sp3

Question 11

A molecular orbital can accommodate a maximum of __________ electron(s).

Accepted Answer

A) one 
B) two 
C) four 
D) six 
E) twelve 
A) one 
B) two 
C) four 
D) six 
E) twelve

Question 12

The sp2 atomic hybrid orbital set accommodates __________ electron domains.

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5 
E) 6 
A) 2 
B) 3 
C) 4 
D) 5 
E) 6

Question 13

A typical double bond __________.

Accepted Answer

A) is stronger and shorter than a single bond 
B) consists of one σ bond and one π bond 
C) imparts rigidity to a molecule 
D) consists of two shared electron pairs 
E) All of the above answers are correct. 
A) is stronger and shorter than a single bond 
B) consists of one σ bond and one π bond 
C) imparts rigidity to a molecule 
D) consists of two shared electron pairs 
E) All of the above answers are correct.

Question 14

For a molecule with the formula AB3 the molecular shape is __________.

Accepted Answer

A) linear, octahedral, or bent 
B) linear, bent, or trigonal planar 
C) linear, bent, or T-shaped 
D) tetrahedral 
E) trigonal planar, trigonal pyramidal, or T-shaped 
A) linear, octahedral, or bent 
B) linear, bent, or trigonal planar 
C) linear, bent, or T-shaped 
D) tetrahedral 
E) trigonal planar, trigonal pyramidal, or T-shaped

Question 15

The electron-domain geometry and molecular geometry of ammonia are __________ and __________, respectively.

Accepted Answer

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

Question 16

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

Accepted Answer

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

Question 17

The molecular geometry of the left-most carbon atom in the molecule below is __________.

Accepted Answer

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

Question 18

What are the three bond angles in the trigonal bipyramidal structure?

Accepted Answer

The answer of What are the three bond angles in...

Question 19

In molecular orbital theory the stability of a covalent body is related to its __________.

Accepted Answer

The answer of In molecular orbital theory the stability of...

Question 20

There are __________ σ bonds and __________ π bonds in H3C-CH2-CH-CH-CH2-CCH.

Accepted Answer

A) 14, 2 
B) 10, 3 
C) 12, 2 
D) 13, 2 
E) 16, 3 
A) 14, 2 
B) 10, 3 
C) 12, 2 
D) 13, 2 
E) 16, 3

Exam 9: Molecular Geometry and Bonding Theories

There are __________ σ and __________ π bonds in the H2C-C-CH2 molecule.

In order to produce sp2 hybrid orbitals, __________ s atomic orbital(s)and __________ p atomic orbital(s)must be mixed.

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

The more effectively two atomic orbitals overlap, __________.

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

The molecular geometry of the SF2 molecule is __________.

Using the VSEPR model, the electron-domain geometry of the central atom in SF4 is __________.

For a molecule with the formula AB2 the molecular shape is __________.

Using the VSEPR model, the electron-domain geometry of the central atom in SF2 is __________.

The hybridization of carbon in the H-CN: molecule is __________.

A molecular orbital can accommodate a maximum of __________ electron(s).

The sp2 atomic hybrid orbital set accommodates __________ electron domains.

A typical double bond __________.

For a molecule with the formula AB3 the molecular shape is __________.

The electron-domain geometry and molecular geometry of ammonia are __________ and __________, respectively.

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

The molecular geometry of the left-most carbon atom in the molecule below is __________.

What are the three bond angles in the trigonal bipyramidal structure?

In molecular orbital theory the stability of a covalent body is related to its __________.

There are __________ σ bonds and __________ π bonds in H3C-CH2-CH-CH-CH2-CCH.

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

There are σ and π bonds in the H₂C-C-CH₂ molecule.

In order to produce sp² hybrid orbitals, s atomic orbital(s)and p atomic orbital(s)must be mixed.

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

The molecular geometry of the SF₂ molecule is __________.

Using the VSEPR model, the electron-domain geometry of the central atom in SF₄ is __________.

For a molecule with the formula AB₂ the molecular shape is __________.

Using the VSEPR model, the electron-domain geometry of the central atom in SF₂ is __________.

The sp² atomic hybrid orbital set accommodates __________ electron domains.

For a molecule with the formula AB₃ the molecular shape is __________.

The electron-domain geometry and molecular geometry of ammonia are and , respectively.

There are σ bonds and π bonds in H₃C-CH₂-CH-CH-CH₂-CCH.