Question 1

The ________ hydrogen orbital overlaps with the ________ fluoride orbital in HF.

Accepted Answer

1s,2p

Question 2

XeF4 is a polar molecule.

Accepted Answer

A) True 
 B)False  False

Question 3

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 B

Question 4

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 5

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 6

The electron domain and molecular geometry of SO3 are ________.

Accepted Answer

A) trigonal bipyramidal, trigonal planar 
B) trigonal planar, bent 
C) trigonal bipyramidal, T-shaped 
D) trigonal planar, trigonal planar 
E) octahedral, seesaw 
A) trigonal bipyramidal, trigonal planar 
B) trigonal planar, bent 
C) trigonal bipyramidal, T-shaped 
D) trigonal planar, trigonal planar 
E) octahedral, seesaw

Question 7

What is the molecular shape of H2O?

Accepted Answer

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

Question 8

The central Xe atom in the XeF4 molecule has ________ unbonded electron pair(s)and ________ bonded electron pair(s)in its valence shell.

Accepted Answer

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

Question 9

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 10

The hybrid orbital set used by the central atom in ClO2- is ________.

Accepted Answer

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

Question 11

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 12

Using the VSEPR model,the electron-domain geometry of the central atom in O3 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 13

Using the VSEPR model,the electron-domain geometry of the central atom in XeF4 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 14

The central atom in the O3 molecule has ________ nonbonded electron pair(s)and ________ bonded electron pair(s)in its valence shell.

Accepted Answer

A) 6, 2 
B) 1, 3 
C) 2, 2 
D) 3, 1 
E) 3, 2 
A) 6, 2 
B) 1, 3 
C) 2, 2 
D) 3, 1 
E) 3, 2

Question 15

Electrons in ________ bonds remain localized between two atoms.Electrons in ________ bonds can become delocalized between more than two atoms.

Accepted Answer

A) pi, sigma 
B) sigma, pi 
C) pi, pi 
D) sigma, sigma 
E) ionic, sigma 
A) pi, sigma 
B) sigma, pi 
C) pi, pi 
D) sigma, sigma 
E) ionic, sigma

Question 16

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 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

The hybridization of orbitals on the central atom in a molecule is sp.The electron-domain geometry around this central atom is ________.

Accepted Answer

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

Question 19

The total number of π bonds in the H-C≡C-C≡C-C≡N molecule is ________.

Accepted Answer

A) 3 
B) 4 
C) 6 
D) 9 
E) 12 
A) 3 
B) 4 
C) 6 
D) 9 
E) 12

Question 20

How many hybrid orbitals are formed upon the mixing of three atomic orbitals?

Accepted Answer

A) three 
B) six 
C) four 
D) one 
E) five 
A) three 
B) six 
C) four 
D) one 
E) five

Exam 9: Molecular Geometry and Bonding Theories

The ________ hydrogen orbital overlaps with the ________ fluoride orbital in HF.

XeF4 is a polar molecule.

The sp2 atomic hybrid orbital set accommodates ________ electron domains.

Of the molecules below,only ________ is polar.

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

The electron domain and molecular geometry of SO3 are ________.

What is the molecular shape of H2O?

The central Xe atom in the XeF4 molecule has ________ unbonded electron pair(s)and ________ bonded electron pair(s)in its valence shell.

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

The hybrid orbital set used by the central atom in ClO2- is ________.

A typical double bond consists of ________.

Using the VSEPR model,the electron-domain geometry of the central atom in O3 is ________.

Using the VSEPR model,the electron-domain geometry of the central atom in XeF4 is ________.

The central atom in the O3 molecule has ________ nonbonded electron pair(s)and ________ bonded electron pair(s)in its valence shell.

Electrons in ________ bonds remain localized between two atoms.Electrons in ________ bonds can become delocalized between more than two atoms.

An antibonding MO ________ the corresponding bonding MO.

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

The hybridization of orbitals on the central atom in a molecule is sp.The electron-domain geometry around this central atom is ________.

The total number of π bonds in the H-C≡C-C≡C-C≡N molecule is ________.

How many hybrid orbitals are formed upon the mixing of three atomic orbitals?

Introduction: Matter, energy, and Measurement

Atoms, molecules, and Ions

Chemical Reactions and Reaction Stoichiometry

Reactions in Aqueous Solution

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 hydrogen orbital overlaps with the fluoride orbital in HF.

XeF₄ is a polar molecule.

The sp² atomic hybrid orbital set accommodates ________ electron domains.

In order to produce sp²hybrid orbitals, s atomic orbital(s)and p atomic orbital(s)must be mixed.

The electron domain and molecular geometry of SO₃ are ________.

What is the molecular shape of H₂O?

The central Xe atom in the XeF₄ molecule has unbonded electron pair(s)and bonded electron pair(s)in its valence shell.

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

The hybrid orbital set used by the central atom in ClO₂^- is ________.

Using the VSEPR model,the electron-domain geometry of the central atom in O₃ is ________.

Using the VSEPR model,the electron-domain geometry of the central atom in XeF₄ is ________.

The central atom in the O₃ molecule has nonbonded electron pair(s)and bonded electron pair(s)in its valence shell.

Electrons in bonds remain localized between two atoms.Electrons in bonds can become delocalized between more than two atoms.