Question 1

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

Accepted Answer

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

Question 2

An electron domain consists of __________. 
(a)a nonbonding pair of electrons
(b)a single bond
(c)a multiple bond

Accepted Answer

A) a only 
B) b only 
C) c only 
D) a, b, and c 
E) b and c 
A) a only 
B) b only 
C) c only 
D) a, b, and c 
E) b and c

Question 3

For which of the molecules is the molecular geometry (shape)the same as the VSEPR electron domain arrangement (electron domain geometry)?

Accepted Answer

A) (i)and (ii) 
B) (i)and (iii) 
C) (ii)and (v) 
D) (iv)and (v) 
E) (v)only 
A) (i)and (ii) 
B) (i)and (iii) 
C) (ii)and (v) 
D) (iv)and (v) 
E) (v)only

Question 4

The blending of one s atomic orbital and two p atomic orbitals produces __________.

Accepted Answer

A) three sp hybrid orbitals 
B) two sp2 hybrid orbitals 
C) three sp3 hybrid orbitals 
D) two sp3 hybrid orbitals 
E) three sp2 hybrid orbitals 
A) three sp hybrid orbitals 
B) two sp2 hybrid orbitals 
C) three sp3 hybrid orbitals 
D) two sp3 hybrid orbitals 
E) three sp2 hybrid orbitals

Question 5

In order to produce sp3 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 6

Based on molecular orbital theory, the bond order of the N-N bond in the N2 molecule is __________.

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
E) 5 
A) 0 
B) 1 
C) 2 
D) 3 
E) 5

Question 7

The carbon-carbon σ bond in ethylene, H2C-CH2, results from the overlap of __________.

Accepted Answer

A) sp hybrid orbitals 
B) sp3 hybrid orbitals 
C) sp2 hybrid orbitals 
D) s atomic orbitals 
E) p atomic orbitals 
A) sp hybrid orbitals 
B) sp3 hybrid orbitals 
C) sp2 hybrid orbitals 
D) s atomic orbitals 
E) p atomic orbitals

Question 8

Of the molecules below, only __________ is polar.

Accepted Answer

A) CCl4 
B) CH4 
C) SeF4 
D) SiCl4 
A) CCl4 
B) CH4 
C) SeF4 
D) SiCl4

Question 9

According to MO theory, overlap of two s atomic orbitals produces __________.

Accepted Answer

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

Question 10

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

Accepted Answer

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

Question 11

The sensation of vision results from a nerve impulse that is triggered by the separation of retinal from __________.

Accepted Answer

The answer of The sensation of vision results from a...

Question 12

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 13

The bond angles marked a, b, and c in the molecule below are about __________, __________, and __________, respectively.

Accepted Answer

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

Question 14

Which of the following molecules or ions will exhibit delocalized bonding? NO2- NH4+ N3-

Accepted Answer

A) NH4+ and N3- 
B) NO2- only 
C) NO2-, NH4+, and N3- 
D) N3- only 
E) NO2- and N3- 
A) NH4+ and N3- 
B) NO2- only 
C) NO2-, NH4+, and N3- 
D) N3- only 
E) NO2- and N3-

Question 15

In the valence shell of an atom there are six electron domains. They will be arranged in a (an)__________ geometry.

Accepted Answer

The answer of In the valence shell of an atom...

Question 16

Using the VSEPR model, the electron-domain geometry of the central atom in BrF4- 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 17

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

Exam 9: Molecular Geometry and Bonding Theories

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

An electron domain consists of __________. (a)a nonbonding pair of electrons (b)a single bond (c)a multiple bond

For which of the molecules is the molecular geometry (shape)the same as the VSEPR electron domain arrangement (electron domain geometry)?

The blending of one s atomic orbital and two p atomic orbitals produces __________.

In order to produce sp3 hybrid orbitals, __________ s atomic orbital(s)and __________ p atomic orbital(s)must be mixed.

Based on molecular orbital theory, the bond order of the N-N bond in the N2 molecule is __________.

The carbon-carbon σ bond in ethylene, H2C-CH2, results from the overlap of __________.

Of the molecules below, only __________ is polar.

According to MO theory, overlap of two s atomic orbitals produces __________.

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

The sensation of vision results from a nerve impulse that is triggered by the separation of retinal from __________.

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

The bond angles marked a, b, and c in the molecule below are about __________, __________, and __________, respectively.

Which of the following molecules or ions will exhibit delocalized bonding? NO2- NH4+ N3-

In the valence shell of an atom there are six electron domains. They will be arranged in a (an)__________ geometry.

Using the VSEPR model, the electron-domain geometry of the central atom in BrF4- is __________.

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

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

In order to produce sp³ hybrid orbitals, s atomic orbital(s)and p atomic orbital(s)must be mixed.

Based on molecular orbital theory, the bond order of the N-N bond in the N₂ molecule is __________.

The carbon-carbon σ bond in ethylene, H₂C-CH₂, results from the overlap of __________.

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

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

The bond angles marked a, b, and c in the molecule below are about , , and __, respectively.

Which of the following molecules or ions will exhibit delocalized bonding? NO₂^- NH₄⁺ N₃^-

Using the VSEPR model, the electron-domain geometry of the central atom in BrF₄^- is __________.