Question 1

The O-S-O bond angle in SO2 is slightly less than __________.

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 2

Of the following, only __________ has sp2 hybridization of the central atom.

Accepted Answer

A) PH3 
B) CO32- 
C) ICl3 
D) l3- 
E) PF5 
A) PH3 
B) CO32- 
C) ICl3 
D) l3- 
E) PF5

Question 3

The electron-domain geometry of a carbon-centered compound is tetrahedral. The hybridization of the central carbon atom is __________.

Accepted Answer

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

Question 4

In order to exhibit delocalized π bonding, a molecule must have __________.

Accepted Answer

A) at least two π bonds 
B) at least two resonance structures 
C) at least three σ bonds 
D) at least four atoms 
E) trigonal planar electron domain geometry 
A) at least two π bonds 
B) at least two resonance structures 
C) at least three σ bonds 
D) at least four atoms 
E) trigonal planar electron domain geometry

Question 5

The molecular geometry of the PHCl2 molecule is __________.

Accepted Answer

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

Question 6

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 7

In which of the molecules does the central atom utilize d orbitals to form hybrid orbitals?

Accepted Answer

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

Question 8

Of the following, the central atom is sp3d2 hybridized only in __________.

Accepted Answer

A) PCl5 
B) XeF4 
C) PH3 
D) Br3- 
E) BeF2 
A) PCl5 
B) XeF4 
C) PH3 
D) Br3- 
E) BeF2

Question 9

A triatomic molecule cannot be linear if the hybridization of the central atoms is __________.

Accepted Answer

A) sp 
B) sp2 
C) sp3 
D) sp2 or sp3 
E) sp2d or sp3d2 
A) sp 
B) sp2 
C) sp3 
D) sp2 or sp3 
E) sp2d or sp3d2

Question 10

For molecules of the general formula ABn, n can be greater than four __________.

Accepted Answer

A) for any element A 
B) only when A is an element from the third period or below the third period 
C) only when A is boron or beryllium 
D) only when A is carbon 
E) only when A is Xe 
A) for any element A 
B) only when A is an element from the third period or below the third period 
C) only when A is boron or beryllium 
D) only when A is carbon 
E) only when A is Xe

Question 11

The molecular geometry 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 12

The molecular geometry of the right-most carbon 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 13

Of the molecules below, only __________ is nonpolar.

Accepted Answer

A) BF3 
B) NF3 
C) IF3 
D) PBr3 
E) BrCl3 
A) BF3 
B) NF3 
C) IF3 
D) PBr3 
E) BrCl3

Question 14

The more unpaired electrons in a species, the stronger is the force of magnetic attraction. This is called __________.

Accepted Answer

The answer of The more unpaired electrons in a species,...

Question 15

Which of the following molecules or ions will exhibit delocalized bonding? SO2 SO3 SO32-

Accepted Answer

A) SO2, SO3, and SO32- 
B) SO32- only 
C) SO2 and SO3 
D) SO3 and SO32- 
E) None of the above will exhibit delocalized bonding. 
A) SO2, SO3, and SO32- 
B) SO32- only 
C) SO2 and SO3 
D) SO3 and SO32- 
E) None of the above will exhibit delocalized bonding.

Question 16

The electron domain and molecular geometry of BrO2- is __________.

Accepted Answer

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

Question 17

Valence bond theory does not address the issue of __________.

Accepted Answer

A) excited states of molecules 
B) molecular shape 
C) covalent bonding 
D) hybridization 
E) multiple bonds 
A) excited states of molecules 
B) molecular shape 
C) covalent bonding 
D) hybridization 
E) multiple bonds

Question 18

Boron trifluoride has three bonding domains and its electron domain geometry is trigonal planar.

Accepted Answer

A) True 
 B)False

Question 19

Of the following, __________ appear(s)to gain mass in a magnetic field. B2 N2 O2

Accepted Answer

A) O2 only 
B) N2 only 
C) B2 and N2 
D) N2 and O2 
E) B2 and O2 
A) O2 only 
B) N2 only 
C) B2 and N2 
D) N2 and O2 
E) B2 and O2

Question 20

Based on molecular orbital theory, the bond order of the C-C bond in the C2 molecule is __________.

Accepted Answer

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

Exam 9: Molecular Geometry and Bonding Theories

The O-S-O bond angle in SO2 is slightly less than __________.

Of the following, only __________ has sp2 hybridization of the central atom.

The electron-domain geometry of a carbon-centered compound is tetrahedral. The hybridization of the central carbon atom is __________.

In order to exhibit delocalized π bonding, a molecule must have __________.

The molecular geometry of the PHCl2 molecule is __________.

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

In which of the molecules does the central atom utilize d orbitals to form hybrid orbitals?

Of the following, the central atom is sp3d2 hybridized only in __________.

A triatomic molecule cannot be linear if the hybridization of the central atoms is __________.

For molecules of the general formula ABn, n can be greater than four __________.

The molecular geometry consists of __________. (a)a nonbonding pair of electrons (b)a single bond (c)a multiple bond

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

Of the molecules below, only __________ is nonpolar.

The more unpaired electrons in a species, the stronger is the force of magnetic attraction. This is called __________.

Which of the following molecules or ions will exhibit delocalized bonding? SO2 SO3 SO32-

The electron domain and molecular geometry of BrO2- is __________.

Valence bond theory does not address the issue of __________.

Boron trifluoride has three bonding domains and its electron domain geometry is trigonal planar.

Of the following, __________ appear(s)to gain mass in a magnetic field. B2 N2 O2

Based on molecular orbital theory, the bond order of the C-C bond in the C2 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 O-S-O bond angle in SO₂ is slightly less than __________.

Of the following, only __________ has sp² hybridization of the central atom.

The molecular geometry of the PHCl₂ molecule is __________.

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

Of the following, the central atom is sp³d² hybridized only in __________.

For molecules of the general formula AB_n, n can be greater than four __________.

Which of the following molecules or ions will exhibit delocalized bonding? SO₂ SO₃ SO₃^2-

The electron domain and molecular geometry of BrO₂^- is __________.

Of the following, __________ appear(s)to gain mass in a magnetic field. B₂ N₂ O₂

Based on molecular orbital theory, the bond order of the C-C bond in the C₂ molecule is __________.