Question 1

Choose the INCORRECT statement.

Accepted Answer

A) In a Lewis structure,a terminal atom is bonded to two or more atoms. 
B) In a Lewis structure all valence electrons must appear. 
C) In a Lewis structure,usually all electrons are paired. 
D) In a Lewis structure,usually each atom acquires an outer-shell octet of electrons;H has 2 outer shell electrons. 
E) In Lewis structures,most multiple covalent bonds are formed by C,N,O,P,and S. 
A) In a Lewis structure,a terminal atom is bonded to two or more atoms. 
B) In a Lewis structure all valence electrons must appear. 
C) In a Lewis structure,usually all electrons are paired. 
D) In a Lewis structure,usually each atom acquires an outer-shell octet of electrons;H has 2 outer shell electrons. 
E) In Lewis structures,most multiple covalent bonds are formed by C,N,O,P,and S.

Question 2

What is the correct molecular geometry for SeBr3+?

Accepted Answer

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

Question 3

In a Lewis structure,usually each atom acquires an outer-shell octet of electrons;H has 2 outer shell electrons.

Accepted Answer

A) True 
 B)False

Question 4

In a Lewis structure,the number of valence electrons shown is one less for each negative charge.

Accepted Answer

A) True 
 B)False

Question 5

What is the formal charge on B in BF4-?

Accepted Answer

A) +1 
B) -1 
C) +2 
D) 0 
E) -2 
A) +1 
B) -1 
C) +2 
D) 0 
E) -2

Question 6

How many lone pairs of electrons are on the S atom in SF4?

Accepted Answer

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

Question 7

Which of the following is diamagnetic?

Accepted Answer

A) N2  
B) O2-  
C) SO2+  
D) O2  
E) NO2  
A) N2  
B) O2-  
C) SO2+  
D) O2  
E) NO2

Choose the INCORRECT statement.

What is the correct molecular geometry for SeBr₃⁺?

In a Lewis structure,usually each atom acquires an outer-shell octet of electrons;H has 2 outer shell electrons.

In a Lewis structure,the number of valence electrons shown is one less for each negative charge.

What is the formal charge on B in BF₄^-?

How many lone pairs of electrons are on the S atom in SF₄?

Which of the following is diamagnetic?

Matter: Its Properties and Measurement

Atoms and the Atomic Theory

Chemical Compounds

Chemical Reactions

Introduction to Reactions in Aqueous Solutions

Gases

Thermochemistry

Electrons in Atoms

The Periodic Table and Some Atomic Properties

Chemical Bonding Ii: Valence Bond and Molecular Orbital Theories

Intermolecular Forces: Liquids and Solids

Spontaneous Change: Entropy and Gibbs Energy

Solutions and Their Physical Properties

Principles of Chemical Equilibrium

Acids and Bases

Additional Aspects of Acidbase Equilibria

Solubility and Complex-Ion Equilibria

Electrochemistry

Chemical Kinetics

Chemistry of the Main-Group Elements I: Groups 1,2,13,and 14

Chemistry of the Main-Group Elements Ii: Groups 18,17,16,15,and Hydrogen

The Transition Elements

Complex Ions and Coordination Compounds

Nuclear Chemistry

Structures of Organic Compounds

Reactions of Organic Compounds

Chemistry of the Living State

Filters

Exam 10: Chemical Bonding I: Basic Concepts

Choose the INCORRECT statement.

What is the correct molecular geometry for SeBr3+?

In a Lewis structure,usually each atom acquires an outer-shell octet of electrons;H has 2 outer shell electrons.

In a Lewis structure,the number of valence electrons shown is one less for each negative charge.

What is the formal charge on B in BF4-?

How many lone pairs of electrons are on the S atom in SF4?

Which of the following is diamagnetic?

Matter: Its Properties and Measurement

Atoms and the Atomic Theory

Chemical Compounds

Chemical Reactions

Introduction to Reactions in Aqueous Solutions

Gases

Thermochemistry

Electrons in Atoms

The Periodic Table and Some Atomic Properties

Chemical Bonding Ii: Valence Bond and Molecular Orbital Theories

Intermolecular Forces: Liquids and Solids

Spontaneous Change: Entropy and Gibbs Energy

Solutions and Their Physical Properties

Principles of Chemical Equilibrium

Acids and Bases

Additional Aspects of Acidbase Equilibria

Solubility and Complex-Ion Equilibria

Electrochemistry

Chemical Kinetics

Chemistry of the Main-Group Elements I: Groups 1,2,13,and 14

Chemistry of the Main-Group Elements Ii: Groups 18,17,16,15,and Hydrogen

The Transition Elements

Complex Ions and Coordination Compounds

Nuclear Chemistry

Structures of Organic Compounds

Reactions of Organic Compounds

Chemistry of the Living State

Filters

What is the correct molecular geometry for SeBr₃⁺?

What is the formal charge on B in BF₄^-?

How many lone pairs of electrons are on the S atom in SF₄?