Question 1

Give the number of lone pairs around the central atom and the molecular geometry of XeF2.

Accepted Answer

A) 0 lone pairs, linear 
B) 1 lone pair, bent 
C) 2 lone pairs, bent 
D) 3 lone pairs, bent 
E) 3 lone pairs, linear 
A) 0 lone pairs, linear 
B) 1 lone pair, bent 
C) 2 lone pairs, bent 
D) 3 lone pairs, bent 
E) 3 lone pairs, linear

Question 2

According to the VSEPR theory, will the molecule PF5 be polar or nonpolar?

Accepted Answer

Question 3

According to the VSEPR theory, which one of the following species should be linear?

Accepted Answer

A) H2S 
B) HCN 
C) BF3 
D) H2CO 
E) SO2 
A) H2S 
B) HCN 
C) BF3 
D) H2CO 
E) SO2

Question 4

Complete the following table.

Accepted Answer

The answer of Complete the following table.  ...

Question 5

Give the number of lone pairs around the central atom and the molecular geometry of XeF4.

Accepted Answer

A) 0 lone pairs, tetrahedral 
B) 1 lone pair, distorted tetrahedron (seesaw) 
C) 1 lone pair, square pyramidal 
D) 1 lone pair, tetrahedral 
E) 2 lone pairs, square planar 
A) 0 lone pairs, tetrahedral 
B) 1 lone pair, distorted tetrahedron (seesaw) 
C) 1 lone pair, square pyramidal 
D) 1 lone pair, tetrahedral 
E) 2 lone pairs, square planar

Question 6

Which one of the following molecules has a zero dipole moment?

Accepted Answer

A) CO 
B) CH2Cl2 
C) SO3 
D) SO2 
E) NH3 
A) CO 
B) CH2Cl2 
C) SO3 
D) SO2 
E) NH3

Question 7

Ozone (O3)is an allotropic form of oxygen. Use VSEPR theory to predict the shape of the ozone molecule.

Accepted Answer

Question 8

Which of the following species have the same geometries?

Accepted Answer

A) NH2- and H2O 
B) NH2- and BeH2 
C) H2O and BeH2 
D) NH2-, H2O, and BeH2 
A) NH2- and H2O 
B) NH2- and BeH2 
C) H2O and BeH2 
D) NH2-, H2O, and BeH2

Question 9

Use VSEPR theory to predict the molecular geometry of H3O+ (hydronium ion).

Accepted Answer

Question 10

According to the VSEPR theory, the molecular geometry of the carbonate ion, CO32 -, is

Accepted Answer

A) square planar. 
B) tetrahedral. 
C) pyramidal. 
D) trigonal planar. 
E) octahedral. 
A) square planar. 
B) tetrahedral. 
C) pyramidal. 
D) trigonal planar. 
E) octahedral.

Question 11

In which of the following would the bonding be strengthened with the addition of an electron to form the negative molecular ion?

Accepted Answer

A) C2 
B) O2 
C) N2 
D) all of these 
E) none of these 
A) C2 
B) O2 
C) N2 
D) all of these 
E) none of these

Question 12

According to the VSEPR theory, the molecular geometry of beryllium chloride 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 13

What is the hybridization of the iodine atom in the IF5 molecule?

Accepted Answer

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

Question 14

The geometry of the SF4 molecule is

Accepted Answer

A) tetrahedral. 
B) trigonal pyramidal. 
C) trigonal planar. 
D) square planar. 
E) distorted tetrahedron (seesaw). 
A) tetrahedral. 
B) trigonal pyramidal. 
C) trigonal planar. 
D) square planar. 
E) distorted tetrahedron (seesaw).

Question 15

According to the VSEPR theory, the geometrical structure of PF5 is

Accepted Answer

trigonal b

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

What is the hybridization of the central atom in ClO3- ?

Accepted Answer

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

Question 18

Indicate the number of $\pi$-bonds in C2H6.

Accepted Answer

The answer of Indicate the number of $\pi$-bonds in C2H6....

Question 19

The F -Cl -F bond angles in ClF3 are expected to be approximately

Accepted Answer

A) 90° only. 
B) 109.5° only. 
C) 120° only. 
D) 180° only. 
E) 90° and 180°. 
A) 90° only. 
B) 109.5° only. 
C) 120° only. 
D) 180° only. 
E) 90° and 180°.

Question 20

Indicate the type of hybrid orbitals used by the central atom in BrF3.

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

Give the number of lone pairs around the central atom and the molecular geometry of XeF2.

According to the VSEPR theory, will the molecule PF5 be polar or nonpolar?

According to the VSEPR theory, which one of the following species should be linear?

Complete the following table.

Give the number of lone pairs around the central atom and the molecular geometry of XeF4.

Which one of the following molecules has a zero dipole moment?

Ozone (O3)is an allotropic form of oxygen. Use VSEPR theory to predict the shape of the ozone molecule.

Which of the following species have the same geometries?

Use VSEPR theory to predict the molecular geometry of H3O+ (hydronium ion).

According to the VSEPR theory, the molecular geometry of the carbonate ion, CO32 -, is

In which of the following would the bonding be strengthened with the addition of an electron to form the negative molecular ion?

According to the VSEPR theory, the molecular geometry of beryllium chloride is

What is the hybridization of the iodine atom in the IF5 molecule?

The geometry of the SF4 molecule is

According to the VSEPR theory, the geometrical structure of PF5 is

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

What is the hybridization of the central atom in ClO3- ?

Indicate the number of π\piπ -bonds in C2H6.

The F -Cl -F bond angles in ClF3 are expected to be approximately

Indicate the type of hybrid orbitals used by the central atom in BrF3.

Introduction

Atoms, Molecules, and Ions

Stoichiometry

Reactions in Aqueous Solution

Gases

Energy Relationships in Chemical Reactions

The Electronic Structure of Atoms

The Periodic Table

Chemical Bonding I: the Covalent Bond

Introduction to Organic Chemistry

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Thermodynamics

Redox Reactions and Electrochemistry

The Chemistry of Coordination Compounds

Nuclear Chemistry

Organic Polymerssynthetic and Natural

Filters

Give the number of lone pairs around the central atom and the molecular geometry of XeF₂.

According to the VSEPR theory, will the molecule PF₅ be polar or nonpolar?

Give the number of lone pairs around the central atom and the molecular geometry of XeF₄.

Ozone (O₃)is an allotropic form of oxygen. Use VSEPR theory to predict the shape of the ozone molecule.

Use VSEPR theory to predict the molecular geometry of H₃O⁺ (hydronium ion).

According to the VSEPR theory, the molecular geometry of the carbonate ion, CO₃^{2 -}, is

What is the hybridization of the iodine atom in the IF₅ molecule?

The geometry of the SF₄ molecule is

According to the VSEPR theory, the geometrical structure of PF₅ is

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

What is the hybridization of the central atom in ClO₃^- ?

Indicate the number of $\pi$ -bonds in C₂H₆.

The F -Cl -F bond angles in ClF₃ are expected to be approximately

Indicate the type of hybrid orbitals used by the central atom in BrF₃.