Question 1

Of the following molecules, only ________ is polar.

Accepted Answer

A) BeCl2 
B) BF3 
C) CBr4 
D) SiH2Cl2 
E) Cl2 
A) BeCl2 
B) BF3 
C) CBr4 
D) SiH2Cl2 
E) Cl2

Question 2

The electron-domain geometry of ________ is tetrahedral.

Accepted Answer

A) CBr4 
B) PH3 
C) CCl2Br2 
D) XeF4 
E) all of the above except XeF4 
A) CBr4 
B) PH3 
C) CCl2Br2 
D) XeF4 
E) all of the above except XeF4

Question 3

A covalent bond in which overlap regions lie above and below an internuclear axis is called a(n)________.

Accepted Answer

The answer of A covalent bond in which overlap regions...

Question 4

Three monosulfur fluorides are observed: SF2, SF4, and SF6. Of these, ________ is/are polar.

Accepted Answer

A) SF2 only 
B) SF2 and SF4 only 
C) SF4 only 
D) SF6 only 
E) SF2, SF4, and SF6 
A) SF2 only 
B) SF2 and SF4 only 
C) SF4 only 
D) SF6 only 
E) SF2, SF4, and SF6

Question 5

An antibonding MO ________ the corresponding bonding MO.

Accepted Answer

A) is always lower in energy than 
B) can accommodate more electrons than 
C) can accommodate fewer electrons than 
D) is always higher in energy than 
E) is always degenerate with 
A) is always lower in energy than 
B) can accommodate more electrons than 
C) can accommodate fewer electrons than 
D) is always higher in energy than 
E) is always degenerate with

Question 6

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 7

Using the VSEPR model, the molecular geometry of the central atom in ClO2- 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 8

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

Accepted Answer

A) NF3 
B) HCN 
C) BF3 
D) ICl3 
E) CH4 
A) NF3 
B) HCN 
C) BF3 
D) ICl3 
E) CH4

Question 9

According to valence bond theory, which orbitals overlap in the formation of the bond in Cl2?

Accepted Answer

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

Question 10

The molecular geometry of the CHCl3 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 11

Three molecules have similar electron domains, but different molecular shapes. Why?

Accepted Answer

different

Question 12

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 13

There is/are ________ hybridized s atomic orbital(s)in an sp-hybridized carbon atom.

Accepted Answer

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

Question 14

Using the VSEPR model, the molecular geometry of the central atom in KrF2 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 15

PCl5 has ________ electron domains and a ________ molecular arrangement.

Accepted Answer

A) 6, trigonal bipyramidal 
B) 6, tetrahedral 
C) 5, square pyramidal 
D) 5, trigonal bipyramidal 
E) 6, seesaw 
A) 6, trigonal bipyramidal 
B) 6, tetrahedral 
C) 5, square pyramidal 
D) 5, trigonal bipyramidal 
E) 6, seesaw

Question 16

The electron-domain geometry of a sulfur-centered compound is trigonal bipyramidal. The hybridization of the central sulfur 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 17

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

Accepted Answer

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

Question 18

The electron-domain geometry and the molecular geometry of a molecule of the general formula ABn will always be the same if ________.

Accepted Answer

A) there are no lone pairs on the central atom 
B) there is more than one central atom 
C) n is greater than four 
D) n is less than four 
E) the octet rule is obeyed 
A) there are no lone pairs on the central atom 
B) there is more than one central atom 
C) n is greater than four 
D) n is less than four 
E) the octet rule is obeyed

Question 19

The molecular geometry of the PF3 molecule is ________, and this molecule is ________.

Accepted Answer

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

Question 20

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

Exam 9: Molecular Geometry and Bonding Theories

Of the following molecules, only ________ is polar.

The electron-domain geometry of ________ is tetrahedral.

A covalent bond in which overlap regions lie above and below an internuclear axis is called a(n)________.

Three monosulfur fluorides are observed: SF2, SF4, and SF6. Of these, ________ is/are polar.

An antibonding MO ________ the corresponding bonding MO.

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

Using the VSEPR model, the molecular geometry of the central atom in ClO2- is ________.

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

According to valence bond theory, which orbitals overlap in the formation of the bond in Cl2?

The molecular geometry of the CHCl3 molecule is ________.

Three molecules have similar electron domains, but different molecular shapes. Why?

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

There is/are ________ hybridized s atomic orbital(s)in an sp-hybridized carbon atom.

Using the VSEPR model, the molecular geometry of the central atom in KrF2 is ________.

PCl5 has ________ electron domains and a ________ molecular arrangement.

The electron-domain geometry of a sulfur-centered compound is trigonal bipyramidal. The hybridization of the central sulfur atom is ________.

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

The electron-domain geometry and the molecular geometry of a molecule of the general formula ABn will always be the same if ________.

The molecular geometry of the PF3 molecule is ________, and this molecule is ________.

The molecular geometry of the PHCl2 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

Three monosulfur fluorides are observed: SF₂, SF₄, and SF₆. Of these, ________ is/are polar.

Using the VSEPR model, the molecular geometry of the central atom in ClO₂^- is ________.

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

According to valence bond theory, which orbitals overlap in the formation of the bond in Cl₂?

The molecular geometry of the CHCl₃ molecule is ________.

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

Using the VSEPR model, the molecular geometry of the central atom in KrF₂ is ________.

PCl₅ has electron domains and a molecular arrangement.

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

The electron-domain geometry and the molecular geometry of a molecule of the general formula AB_n will always be the same if ________.

The molecular geometry of the PF₃ molecule is , and this molecule is .

The molecular geometry of the PHCl₂ molecule is ________.