Question 1

Which of these Lewis structures is incorrect?

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) A) and E)
G) B) and E)

Question 2

In which one of the following species is the central atom (the first atom in the formula)  likely to violate the octet rule?

Accepted Answer

A)   BF4-
B)   XeO3
C)   SiCl4
D)   NH3
E)   CH2Cl2F) B) and E)
G) C) and D)

Question 3

Which of these molecules has an atom with an expanded octet?

Accepted Answer

A)   HCl
B)   AsCl5
C)   ICl
D)   NCl3
E)   Cl2F) B) and E)
G) C) and E)

Question 4

All of the following molecules contain only single bonds except

Accepted Answer

A)   H2O2.
B)   Cl2.
C)   CH4.
D)   H2O.
E)   SO2.F) All of the above
G) A) and D)

Question 5

Which of the following contains ionic bonding?

Accepted Answer

A)   CO
B)   SrF2
C)   Al
D)   OCl2
E)   HClF) A) and B)
G) A) and C)

Question 6

Which of these compounds is most likely to be covalent?

Accepted Answer

A)   KF
B)   CaCl2
C)   SF4
D)   Al2O3
E)   CaSO4F) B) and D)
G) A) and E)

Question 7

In Ba(CN) 2, the bonding is

Accepted Answer

A)   essentially ionic.
B)   essentially covalent.
C)   both ionic and covalent.
D)   neither ionic nor covalent.E) B) and D)
F) C) and D)

Question 8

How many lone pairs of electrons are on the central atom in the Lewis structure for NH3?

Accepted Answer

Question 9

The Lewis dot symbol consists of the symbol for the element surrounded by dot(s) . What does the dot or dots represent?

Accepted Answer

A)   Electron configuration
B)   Valence electrons
C)   Atomic number
D)   Atomic mass
E)   Core electronsF) C) and D)
G) C) and E)

Question 10

Which of these compounds is most likely to be covalent?

Accepted Answer

A)   Rb2S
B)   SrCl2
C)   CS2
D)   CaO
E)   MgI2F) B) and C)
G) C) and E)

Question 11

Which statement is false concerning ionic bonds and compounds?

Accepted Answer

A)   Ionic bonds are a result of electrostatic forces.
B)   Ionic bonds usually occur between elements with high and low electron affinities.
C)   Elements of an ionic compound usually carry the same charge.
D)   Lewis dot symbols are useful for tracking electrons.E) A) and D)
F) A) and C)

Question 12

Which of these choices is the best Lewis structure for ozone, O3?

Accepted Answer

A)   3? 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
B)   3? 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
C)   3? 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
D)   3? 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
E)   3? 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >F) A) and B)
G) D) and E)

Question 13

Ionic compounds tend to form between metals and nonmetals when electrons are transferred from an element with high ionization energy (metal) to an element with a low electron affinity (nonmetal).

Accepted Answer

A) True 
 B)False

Question 14

How many dots does the Lewis dot symbol for chlorine have around it?

Accepted Answer

A)   1
B)   2
C)   5
D)   7
E)   17F) B) and C)
G) A) and C)

Question 15

Which one of the following compounds is most likely to be ionic?

Accepted Answer

A)   HNF2
B)   H2CO
C)   N2H4
D)   CaCl2
E)   IClF) A) and C)
G) D) and E)

Question 16

Which molecule has a Lewis structure that does not obey the octet rule?

Accepted Answer

A)   N2O
B)   CS2
C)   PH3
D)   CCl4
E)   NO2F) None of the above
G) A) and B)

Question 17

Which of these compounds is most likely to be ionic?

Accepted Answer

A)   NCl3
B)   BaCl2
C)   CO
D)   SO2
E)   SF4F) D) and E)
G) C) and E)

Question 18

What types of elements undergo covalent bonding?

Accepted Answer

A)   a metal and a noble gas
B)   a nonmetal and a metal
C)   two nonmetals
D)   two Group 1A elements
E)   an actinideF) A) and E)
G) A) and B)

Question 19

Which of these pairs of elements would be most likely to form an ionic compound?

Accepted Answer

A)   Cl and I
B)   Al and K
C)   Cl and Mg
D)   C and S
E)   Al and MgF) B) and C)
G) A) and B)

Question 20

Which molecule has the largest dipole moment?

Accepted Answer

A)   HF
B)   HI
C)   HBr
D)   HCl
E)   All of the molecules have the same dipole moment.F) A) and D)
G) B) and E)

Exam 8: Chemical Bonding I: Basic Concepts

In Ba(CN) 2, the bonding is

Correct AnswerverifiedShow Answer

All of the following molecules contain only single bonds except

Correct AnswerverifiedShow Answer

In which one of the following species is the central atom (the first atom in the formula) likely to violate the octet rule?

Correct AnswerverifiedShow Answer

Which statement is false concerning ionic bonds and compounds?

Correct AnswerverifiedShow Answer

Which of these Lewis structures is incorrect?

Correct AnswerverifiedShow Answer

Which of the following contains ionic bonding?

Correct AnswerverifiedShow Answer

Which of these compounds is most likely to be covalent?

Correct AnswerverifiedShow Answer

Which of these choices is the best Lewis structure for ozone, O3?

Correct AnswerverifiedShow Answer

Ionic compounds tend to form between metals and nonmetals when electrons are transferred from an element with high ionization energy (metal) to an element with a low electron affinity (nonmetal).

Correct AnswerverifiedShow Answer

Which molecule has the largest dipole moment?

Correct AnswerverifiedShow Answer

How many lone pairs of electrons are on the central atom in the Lewis structure for NH3?

Correct AnswerverifiedShow Answer

How many dots does the Lewis dot symbol for chlorine have around it?

Correct AnswerverifiedShow Answer

Which molecule has a Lewis structure that does not obey the octet rule?

Correct AnswerverifiedShow Answer

The Lewis dot symbol consists of the symbol for the element surrounded by dot(s) . What does the dot or dots represent?

Correct AnswerverifiedShow Answer

Which one of the following compounds is most likely to be ionic?

Correct AnswerverifiedShow Answer

Which of these molecules has an atom with an expanded octet?

Correct AnswerverifiedShow Answer

Which of these compounds is most likely to be ionic?

Correct AnswerverifiedShow Answer

What types of elements undergo covalent bonding?

Correct AnswerverifiedShow Answer

Which of these pairs of elements would be most likely to form an ionic compound?

Correct AnswerverifiedShow Answer

Which of these compounds is most likely to be covalent?

Correct AnswerverifiedShow Answer

In Ba(CN) ₂, the bonding is

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Which of these choices is the best Lewis structure for ozone, O₃?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

How many lone pairs of electrons are on the central atom in the Lewis structure for NH₃?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified