Question 1

List the number of sigma bonds and pi bonds in a triple bond.

Accepted Answer

A) 1 sigma,1 pi 
B) 2 sigma,1 pi 
C) 2 sigma,2 pi 
D) 1 sigma,2 pi 
A) 1 sigma,1 pi 
B) 2 sigma,1 pi 
C) 2 sigma,2 pi 
D) 1 sigma,2 pi

Question 2

Using the VSEPR model,the molecular geometry of the central atom in SO2 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 3

Give the approximate bond angle for a molecule with a trigonal planar shape.

Accepted Answer

A) 109.5° 
B) 180° 
C) 120° 
D) 105° 
A) 109.5° 
B) 180° 
C) 120° 
D) 105°

Question 4

Consider the molecule below.Determine the molecular geometry at each of the 3 labeled atoms.

Accepted Answer

A) 1 = trigonal planar,2 = tetrahedral,3 = trigonal pyramidal 
B) 1 = tetrahedral,2 = tetrahedral,3 = tetrahedral 
C) 1 = trigonal planar,2 = tetrahedral,3 = tetrahedral 
D) 1 = tetrahedral,2 = tetrahedral,3 = trigonal planar 
E) 1 = trigonal planar,2 = trigonal pyramidal,3 = trigonal pyramidal 
A) 1 = trigonal planar,2 = tetrahedral,3 = trigonal pyramidal 
B) 1 = tetrahedral,2 = tetrahedral,3 = tetrahedral 
C) 1 = trigonal planar,2 = tetrahedral,3 = tetrahedral 
D) 1 = tetrahedral,2 = tetrahedral,3 = trigonal planar 
E) 1 = trigonal planar,2 = trigonal pyramidal,3 = trigonal pyramidal

Question 5

Draw the Lewis structure for OF2.What is the hybridization on the O atom?

Accepted Answer

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

Question 6

Determine the electron geometry (eg),molecular geometry (mg),and polarity of SO2.

Accepted Answer

A) eg = tetrahedral,mg = bent,polar 
B) eg = trigonal planar,mg = bent,polar 
C) eg = linear,mg = linear,nonpolar 
D) eg = tetrahedral,mg = tetrahedral,nonpolar 
E) eg = trigonal pyramidal,mg = trigonal pyramidal,polar 
A) eg = tetrahedral,mg = bent,polar 
B) eg = trigonal planar,mg = bent,polar 
C) eg = linear,mg = linear,nonpolar 
D) eg = tetrahedral,mg = tetrahedral,nonpolar 
E) eg = trigonal pyramidal,mg = trigonal pyramidal,polar

Question 7

What is the molecular geometry of TeCl4?

Accepted Answer

A) seesaw 
B) square planar 
C) square pyramidal 
D) tetrahedral 
A) seesaw 
B) square planar 
C) square pyramidal 
D) tetrahedral

Question 8

How many of the following molecules are polar? XeO2 SiCl2Br2 C2Br2 SeCl6

Accepted Answer

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

Question 9

Give the electron geometry,molecular geometry,and hybridization for CH3-.

Accepted Answer

A) eg = tetrahedral;mg = trigonal pyramidal;sp3 
B) eg = tetrahedral;mg = tetrahedral;sp3 
C) eg = trigonal pyramidal;mg = trigonal pyramidal;sp3 
D) eg = trigonal planar;mg = trigonal planar;sp2 
A) eg = tetrahedral;mg = trigonal pyramidal;sp3 
B) eg = tetrahedral;mg = tetrahedral;sp3 
C) eg = trigonal pyramidal;mg = trigonal pyramidal;sp3 
D) eg = trigonal planar;mg = trigonal planar;sp2

Question 10

Determine the electron geometry,molecular geometry and polarity of N2O (N central).

Accepted Answer

A) eg = linear,mg = linear,nonpolar 
B) eg = tetrahedral,mg = linear,nonpolar 
C) eg = tetrahedral,mg = bent,polar 
D) eg = linear,mg = linear,polar 
E) eg = trigonal planar,mg = bent,polar 
A) eg = linear,mg = linear,nonpolar 
B) eg = tetrahedral,mg = linear,nonpolar 
C) eg = tetrahedral,mg = bent,polar 
D) eg = linear,mg = linear,polar 
E) eg = trigonal planar,mg = bent,polar

Question 11

Draw the Lewis structure for the molecule C3H4.How many sigma and pi bonds does it contain?

Accepted Answer

A) 7 sigma,1 pi 
B) 8 sigma,0 pi 
C) 6 sigma,2 pi 
D) 10 sigma,0 pi 
E) 8 sigma,2 pi 
A) 7 sigma,1 pi 
B) 8 sigma,0 pi 
C) 6 sigma,2 pi 
D) 10 sigma,0 pi 
E) 8 sigma,2 pi

Question 12

Consider the molecule below.Determine the molecular geometry at each of the 2 labeled carbons.

Accepted Answer

A) C1 = tetrahedral,C2 = linear 
B) C1 = trigonal planar,C2 = bent 
C) C1 = bent,C2 = trigonal planar 
D) C1 = trigonal planar,C2 = tetrahedral 
E) C1 = trigonal pyramidal,C2 = see-saw 
A) C1 = tetrahedral,C2 = linear 
B) C1 = trigonal planar,C2 = bent 
C) C1 = bent,C2 = trigonal planar 
D) C1 = trigonal planar,C2 = tetrahedral 
E) C1 = trigonal pyramidal,C2 = see-saw

Question 13

The hybrid orbital set used by the central atom in NO3- is ________.

Accepted Answer

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

Question 14

How many electrons are present in the antibonding MO orbital of He2?

Accepted Answer

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

Question 15

Is it possible for a molecule to be nonpolar even though it contains polar bonds? Explain your answer and give an example.

Accepted Answer

Yes.The polarity of a molecule depends o

Question 16

Draw the Lewis structure for the molecule CH2CHCH3.How many sigma and pi bonds does it contain?

Accepted Answer

A) 8 sigma,1 pi 
B) 9 sigma,0 pi 
C) 9 sigma,1 pi 
D) 7 sigma,2 pi 
E) 8 sigma,2 pi 
A) 8 sigma,1 pi 
B) 9 sigma,0 pi 
C) 9 sigma,1 pi 
D) 7 sigma,2 pi 
E) 8 sigma,2 pi

Question 17

Which molecule has unpaired electrons?

Accepted Answer

A) N2 
B) O2 
C) F2 
D) H2 
A) N2 
B) O2 
C) F2 
D) H2

Question 18

Draw the Lewis structure for SO3.What is the hybridization on the S atom?

Accepted Answer

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

Question 19

Describe a square planar shape.

Accepted Answer

Four bondi

Question 20

Determine the electron geometry (eg)and molecular geometry (mg)of ICl2⁻.

Accepted Answer

A) eg = tetrahedral,mg = bent 
B) eg = tetrahedral,mg = trigonal pyramidal 
C) eg = trigonal bipyramidal,mg = linear 
D) eg = trigonal bipyramidal,mg = trigonal planar 
E) eg = octahedral,mg = linear 
A) eg = tetrahedral,mg = bent 
B) eg = tetrahedral,mg = trigonal pyramidal 
C) eg = trigonal bipyramidal,mg = linear 
D) eg = trigonal bipyramidal,mg = trigonal planar 
E) eg = octahedral,mg = linear

List the number of sigma bonds and pi bonds in a triple bond.

Using the VSEPR model,the molecular geometry of the central atom in SO₂ is ________.

Give the approximate bond angle for a molecule with a trigonal planar shape.

Consider the molecule below.Determine the molecular geometry at each of the 3 labeled atoms.

Draw the Lewis structure for OF₂.What is the hybridization on the O atom?

Determine the electron geometry (eg),molecular geometry (mg),and polarity of SO₂.

What is the molecular geometry of TeCl₄?

How many of the following molecules are polar? XeO₂ SiCl₂Br₂ C₂Br₂ SeCl₆

Give the electron geometry,molecular geometry,and hybridization for CH₃^-.

Determine the electron geometry,molecular geometry and polarity of N₂O (N central).

Draw the Lewis structure for the molecule C₃H₄.How many sigma and pi bonds does it contain?

Consider the molecule below.Determine the molecular geometry at each of the 2 labeled carbons.

The hybrid orbital set used by the central atom in NO₃^- is ________.

How many electrons are present in the antibonding MO orbital of He₂?

Is it possible for a molecule to be nonpolar even though it contains polar bonds? Explain your answer and give an example.

Draw the Lewis structure for the molecule CH₂CHCH₃.How many sigma and pi bonds does it contain?

Which molecule has unpaired electrons?

Draw the Lewis structure for SO₃.What is the hybridization on the S atom?

Describe a square planar shape.

Determine the electron geometry (eg)and molecular geometry (mg)of ICl₂^⁻.

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Exam 10: Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and

List the number of sigma bonds and pi bonds in a triple bond.

Using the VSEPR model,the molecular geometry of the central atom in SO2 is ________.

Give the approximate bond angle for a molecule with a trigonal planar shape.

Consider the molecule below.Determine the molecular geometry at each of the 3 labeled atoms.

Draw the Lewis structure for OF2.What is the hybridization on the O atom?

Determine the electron geometry (eg),molecular geometry (mg),and polarity of SO2.

What is the molecular geometry of TeCl4?

How many of the following molecules are polar? XeO2 SiCl2Br2 C2Br2 SeCl6

Give the electron geometry,molecular geometry,and hybridization for CH3-.

Determine the electron geometry,molecular geometry and polarity of N2O (N central).

Draw the Lewis structure for the molecule C3H4.How many sigma and pi bonds does it contain?

Consider the molecule below.Determine the molecular geometry at each of the 2 labeled carbons.

The hybrid orbital set used by the central atom in NO3- is ________.

How many electrons are present in the antibonding MO orbital of He2?

Is it possible for a molecule to be nonpolar even though it contains polar bonds? Explain your answer and give an example.

Draw the Lewis structure for the molecule CH2CHCH3.How many sigma and pi bonds does it contain?

Which molecule has unpaired electrons?

Draw the Lewis structure for SO3.What is the hybridization on the S atom?

Describe a square planar shape.

Determine the electron geometry (eg)and molecular geometry (mg)of ICl2⁻.

Matter, Measurement, and Problem Solving

Atoms and Elements

Molecules, Compounds and Chemical Equations

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

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Using the VSEPR model,the molecular geometry of the central atom in SO₂ is ________.

Draw the Lewis structure for OF₂.What is the hybridization on the O atom?

Determine the electron geometry (eg),molecular geometry (mg),and polarity of SO₂.

What is the molecular geometry of TeCl₄?

How many of the following molecules are polar? XeO₂ SiCl₂Br₂ C₂Br₂ SeCl₆

Give the electron geometry,molecular geometry,and hybridization for CH₃^-.

Determine the electron geometry,molecular geometry and polarity of N₂O (N central).

Draw the Lewis structure for the molecule C₃H₄.How many sigma and pi bonds does it contain?

The hybrid orbital set used by the central atom in NO₃^- is ________.

How many electrons are present in the antibonding MO orbital of He₂?

Draw the Lewis structure for the molecule CH₂CHCH₃.How many sigma and pi bonds does it contain?

Draw the Lewis structure for SO₃.What is the hybridization on the S atom?

Determine the electron geometry (eg)and molecular geometry (mg)of ICl₂^⁻.