Question 1

According to the VSEPR theory, the molecular geometry of boron trichloride is

Accepted Answer

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

Question 2

What is the hybridization of the As atom in the AsF5 molecule?

Accepted Answer

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

Question 3

The geometry of the CS2 molecule is best described as

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 4

The number of pi bonds in the molecule below is

Accepted Answer

A) 2 
B) 4 
C) 6 
D) 10 
E) 15 
A) 2 
B) 4 
C) 6 
D) 10 
E) 15

Question 5

Which one of the following molecules is polar?

Accepted Answer

A) PBr5 
B) CCl4 
C) BrF5 
D) XeF2 
E) XeF4 
A) PBr5 
B) CCl4 
C) BrF5 
D) XeF2 
E) XeF4

Question 6

The BrF5 molecule has polar bonds and has a net dipole moment.

Accepted Answer

A) True 
 B)False

Question 7

Indicate the type of hybrid orbitals used by the central atom in TeF4.

Accepted Answer

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

Question 8

N,N-diethyl-m-tolumide (DEET)is the active ingredient in many mosquito repellents.   How many sigma bonds and pi bonds are contained in a DEET molecule?

Accepted Answer

31 sigma b

Question 9

Predict the geometry and polarity of the CS2 molecule.

Accepted Answer

A) linear, polar 
B) linear, nonpolar 
C) tetrahedral, nonpolar 
D) bent, nonpolar 
E) bent, polar 
A) linear, polar 
B) linear, nonpolar 
C) tetrahedral, nonpolar 
D) bent, nonpolar 
E) bent, polar

Question 10

Ibuprofen is used as an analgesic for the relief of pain, and also to help reduce fever.   How many sigma bonds and pi bonds are contained in a ibuprofen molecule?

Accepted Answer

33 sigma b

Question 11

Which of the following species has the largest dipole moment (i.e., is the most polar)?

Accepted Answer

A) CH4 
B) CH3Br 
C) CH3Cl 
D) CH3F 
E) CH3I 
A) CH4 
B) CH3Br 
C) CH3Cl 
D) CH3F 
E) CH3I

Question 12

Predict the molecular geometry and polarity of the SO2 molecule.

Accepted Answer

A) linear, polar 
B) linear, nonpolar 
C) bent, polar 
D) bent, nonpolar 
E) None of the above. 
A) linear, polar 
B) linear, nonpolar 
C) bent, polar 
D) bent, nonpolar 
E) None of the above.

Question 13

Indicate the number of $\pi$-bonds in N2H2.

Accepted Answer

The answer of Indicate the number of $\pi$-bonds in N2H2....

Question 14

Use VSEPR theory to explain why the water molecule is bent, rather than linear.

Accepted Answer

About the central oxygen atom are two lo

Question 15

N,N-diethyl-m-tolumide (DEET)is the active ingredient in many mosquito repellents.What is the hybridization state of the nitrogen atom in the structure of DEET shown below?

Accepted Answer

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

Question 16

The bond angles in CO32- are expected to be

Accepted Answer

A) a little less than 109.5°. 
B) 109.5°. 
C) a little less than 120°. 
D) 120°. 
E) a little more than 120°. 
A) a little less than 109.5°. 
B) 109.5°. 
C) a little less than 120°. 
D) 120°. 
E) a little more than 120°.

Question 17

What is the hybridization on the central atom in NO3-?

Accepted Answer

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

Question 18

Use VSEPR theory to predict the molecular geometry of SF4 (sulfur tetrafluoride).

Accepted Answer

distorted

Question 19

If a triatomic molecule is linear, then the hybridization of the central atom will be

Accepted Answer

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

Question 20

Indicate the type of hybrid orbitals used by the central atom in SF6.

Accepted Answer

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

Exam 10: Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

According to the VSEPR theory, the molecular geometry of boron trichloride is

What is the hybridization of the As atom in the AsF5 molecule?

The geometry of the CS2 molecule is best described as

The number of pi bonds in the molecule below is

Which one of the following molecules is polar?

The BrF5 molecule has polar bonds and has a net dipole moment.

Indicate the type of hybrid orbitals used by the central atom in TeF4.

N,N-diethyl-m-tolumide (DEET)is the active ingredient in many mosquito repellents. How many sigma bonds and pi bonds are contained in a DEET molecule?

Predict the geometry and polarity of the CS2 molecule.

Ibuprofen is used as an analgesic for the relief of pain, and also to help reduce fever. How many sigma bonds and pi bonds are contained in a ibuprofen molecule?

Which of the following species has the largest dipole moment (i.e., is the most polar)?

Predict the molecular geometry and polarity of the SO2 molecule.

Indicate the number of π\piπ -bonds in N2H2.

Use VSEPR theory to explain why the water molecule is bent, rather than linear.

N,N-diethyl-m-tolumide (DEET)is the active ingredient in many mosquito repellents.What is the hybridization state of the nitrogen atom in the structure of DEET shown below?

The bond angles in CO32- are expected to be

What is the hybridization on the central atom in NO3-?

Use VSEPR theory to predict the molecular geometry of SF4 (sulfur tetrafluoride).

If a triatomic molecule is linear, then the hybridization of the central atom will be

Indicate the type of hybrid orbitals used by the central atom in SF6.

Chemistry: The Study of Change

Atoms, Molecules, and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solution

Gases

Thermo-Chemistry

Quantum Theory and the Electronic Structure of Atoms

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Chemistry in the Atmosphere

Entropy, Free Energy, and Equilibrium

Electrochemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Transition Metal Chemistry and Coordination Compounds

Nuclear Chemistry

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

What is the hybridization of the As atom in the AsF₅ molecule?

The geometry of the CS₂ molecule is best described as

The BrF₅ molecule has polar bonds and has a net dipole moment.

Indicate the type of hybrid orbitals used by the central atom in TeF₄.

Predict the geometry and polarity of the CS₂ molecule.

Predict the molecular geometry and polarity of the SO₂ molecule.

Indicate the number of $\pi$ -bonds in N₂H₂.

The bond angles in CO₃^2- are expected to be

What is the hybridization on the central atom in NO₃^-?

Use VSEPR theory to predict the molecular geometry of SF₄ (sulfur tetrafluoride).

Indicate the type of hybrid orbitals used by the central atom in SF₆.