Introduction to General, Organic and Biochemistry, 10th Edition solutions manual and test bankFrederick A. Bettelheim | William H. Brown | Mary K. Campbell | Shawn O. Farrell | Omar Torres
CHAPTER
3 — CHEMICAL BONDS
MULTIPLE
CHOICE
1. How many main types of chemical bonds
exist?
|
a.
|
1
|
c.
|
3
|
|
b.
|
2
|
d.
|
4
|
ANS: B PTS: 1
TOP: 3.1 - WHAT DO WE NEED TO KNOW BEFORE WE
BEGIN?
2. Which of the following is true in general of
all cations?
|
a.
|
A cation has equal
numbers of protons and electrons.
|
|
b.
|
A cation has fewer
protons than electrons.
|
|
c.
|
A cation has more
protons than electrons.
|
|
d.
|
A cation has more
protons than neutrons.
|
ANS: C PTS: 1 TOP: 3.2 - WHAT IS THE OCTET RULE?
3. Which of the following is generally true of
all anions?
|
a.
|
An anion has equal
numbers of protons and electrons.
|
|
b.
|
An anion has fewer
protons than electrons.
|
|
c.
|
An anion has more
protons than electrons.
|
|
d.
|
An anion has more
electrons than neutrons.
|
ANS: B PTS: 1 TOP: 3.2 - WHAT IS THE OCTET RULE?
4. Which is most likely true for an atom with
six valence electrons?
|
a.
|
It will gain one
electron.
|
|
b.
|
It will gain two
electrons.
|
|
c.
|
It will lose one
electron.
|
|
d.
|
It will lose two
electrons.
|
ANS: B PTS: 1 TOP: 3.2 - WHAT IS THE OCTET RULE?
5. Which is most likely true for an atom with
one valence electron?
|
a.
|
It will gain one
electron.
|
|
b.
|
It will gain two
electrons.
|
|
c.
|
It will lose one
electron.
|
|
d.
|
It will lose two
electrons.
|
ANS: C PTS: 1 TOP: 3.2 - WHAT IS THE OCTET RULE?
6. Which of the following atoms is least likely
to form an ion?
|
a.
|
fluorine
|
c.
|
neon
|
|
b.
|
magnesium
|
d.
|
sodium
|
ANS: C PTS: 1 TOP: 3.2 - WHAT IS THE OCTET RULE?
7. For which of the following atoms do we not
try to apply the octet rule?
|
a.
|
oxygen
|
c.
|
sodium
|
|
b.
|
nickel
|
d.
|
xenon
|
ANS: B PTS: 1 TOP: 3.2 - WHAT IS THE OCTET RULE?
8. What is the valence shell electron
configuration of all the noble gases except for helium?
|
a.
|
ns2
|
c.
|
ns2np6
|
|
b.
|
ns2np3
|
d.
|
np8
|
ANS: C PTS: 1 TOP: 3.2 - WHAT IS THE OCTET RULE?
9. Which of the following elements is most
likely to lose electrons to become a cation?
|
a.
|
Ar
|
c.
|
Cl
|
|
b.
|
C
|
d.
|
Fe
|
ANS: D PTS: 1 TOP: 3.2 - WHAT IS THE OCTET RULE?
10. Which of the following elements is most likely to gain electrons
to become an anion?
|
a.
|
Ar
|
c.
|
Cl
|
|
b.
|
C
|
d.
|
Fe
|
ANS: C PTS: 1 TOP: 3.2 - WHAT IS THE OCTET RULE?
11. Which of the following occurs when a magnesium atom is converted
to Mg2+?
|
a.
|
The magnesium atom
gains two electrons and loses two protons.
|
|
b.
|
The magnesium atom
gains two electrons.
|
|
c.
|
The magnesium atom
loses two electrons and two protons.
|
|
d.
|
The magnesium atom
loses two electrons.
|
ANS: D PTS: 1 TOP: 3.2 - WHAT IS THE OCTET RULE?
12. Which of the following occurs when a sulfur atom is converted to S2–?
|
a.
|
The sulfur atom
gains two electrons and loses two protons.
|
|
b.
|
The sulfur atom
gains two electrons.
|
|
c.
|
The sulfur atom
loses two electrons and two protons.
|
|
d.
|
The sulfur loses
two electrons.
|
ANS: B PTS: 1 TOP: 3.2 - WHAT IS THE OCTET RULE?
13. Which of the following ions has the same electronic configuration
as argon?
|
a.
|
K+
|
c.
|
both a and b
|
|
b.
|
Ca2+
|
d.
|
neither a nor b
|
ANS: C PTS: 1 TOP: 3.2 - WHAT IS THE OCTET RULE?
14. Which of the following ions has the same electronic configuration
as argon?
|
a.
|
K2+
|
c.
|
both a and b
|
|
b.
|
Ca+
|
d.
|
neither a nor b
|
ANS: D PTS: 1 TOP: 3.2 - WHAT IS THE OCTET RULE?
15. In what form is lithium administered when it is used as a drug in
the treatment of manic depression?
|
a.
|
Li–
|
c.
|
Li+
|
|
b.
|
Li
|
d.
|
Li2+
|
ANS: C PTS: 1 TOP: 3.2 - WHAT IS THE OCTET RULE?
16. In what form is fluorine administered when it is used to prevent
tooth decay?
|
a.
|
F–
|
c.
|
F2
|
|
b.
|
F
|
d.
|
F+
|
ANS: A PTS: 1 TOP: 3.2 - WHAT IS THE OCTET RULE?
17. What is the name of the species formed when a sodium atom loses an
electron?
|
a.
|
sodate
|
c.
|
sodium
|
|
b.
|
sodide
|
d.
|
sodium ion
|
ANS: B PTS: 1
TOP: 3.3 - HOW DO WE NAME ANIONS AND CATIONS?
18. What is the name of the species formed when a bromine atom gains
an electron?
|
a.
|
bromate
|
c.
|
bromine
|
|
b.
|
bromide
|
d.
|
bromine ion
|
ANS: B PTS: 1
TOP: 3.3 - HOW DO WE NAME ANIONS AND CATIONS?
19. For which types of elements do we sometimes use the “ous/ic”
system in naming ions?
|
a.
|
alkali metals
|
c.
|
noble gases
|
|
b.
|
halogens
|
d.
|
transition metals
|
ANS: D PTS: 1
TOP: 3.3 - HOW DO WE NAME ANIONS AND CATIONS?
20. In the “ous/ic” system which species is named with the “ic”
ending?
|
a.
|
the less negative
anion
|
c.
|
the less positive
cation
|
|
b.
|
the more negative
anion
|
d.
|
the more positive
cation
|
ANS: D PTS: 1
TOP: 3.3 - HOW DO WE NAME ANIONS AND CATIONS?
21. What is the common name of Cu+?
|
a.
|
copper ion
|
c.
|
cupric ion
|
|
b.
|
cuprate ion
|
d.
|
cuprous ion
|
ANS: D PTS: 1
TOP: 3.3 - HOW DO WE NAME ANIONS AND CATIONS?
22. What is the common name of Cu2+?
|
a.
|
copper ion
|
c.
|
cupric ion
|
|
b.
|
cuprate ion
|
d.
|
cuprous ion
|
ANS: C PTS: 1
TOP: 3.3 - HOW DO WE NAME ANIONS AND CATIONS?
23. Which of the following is the stannic ion?
|
a.
|
Sn+
|
c.
|
Sn3+
|
|
b.
|
Sn2+
|
d.
|
Sn4+
|
ANS: D PTS: 1
TOP: 3.3 - HOW DO WE NAME ANIONS AND CATIONS?
24. Which of the following is the stannous ion?
|
a.
|
Sn+
|
c.
|
Sn3+
|
|
b.
|
Sn2+
|
d.
|
Sn4+
|
ANS: B PTS: 1
TOP: 3.3 - HOW DO WE NAME ANIONS AND CATIONS?
25. Which of the following endings is generally associated with a
monatomic anion?
|
a.
|
-ade
|
c.
|
-ic
|
|
b.
|
-ate
|
d.
|
-ide
|
ANS: D PTS: 1
TOP: 3.3 - HOW DO WE NAME ANIONS AND CATIONS?
26. If the name of an ion ends in “ate” what type of ion is it most
likely to be?
|
a.
|
a monatomic anion
|
c.
|
a polyatomic anion
|
|
b.
|
a monatomic cation
|
d.
|
a polyatomic cation
|
ANS: C PTS: 1
TOP: 3.3 - HOW DO WE NAME ANIONS AND CATIONS?
27. The preferred name for HCO3– is hydrogen
carbonate. What is the common name for
this ion?
|
a.
|
bicarbonate
|
c.
|
bicarbide
|
|
b.
|
dicarbonate
|
d.
|
dicarbide
|
ANS: A PTS: 1
TOP: 3.3 - HOW DO WE NAME ANIONS AND CATIONS?
28. The “ide” ending is usually, but not always, associated with
monatomic anions. Which of the following
polyatomic ions has a name which ends in “ide”?
|
a.
|
C2H3O2–
|
c.
|
OH–
|
|
b.
|
HPO42–
|
d.
|
SO42–
|
ANS: C PTS: 1
TOP: 3.3 - HOW DO WE NAME ANIONS AND CATIONS?
29. Which of the following is true of polyatomic ions?
|
a.
|
All are anions.
|
|
b.
|
All are cations.
|
|
c.
|
The vast majority
are anions.
|
|
d.
|
The vast majority
are cations.
|
ANS: C PTS: 1
TOP: 3.3 - HOW DO WE NAME ANIONS AND CATIONS?
30. What is the relationship between the nitrate ion and the nitrite
ion?
|
a.
|
The nitrate ion has
one less oxygen atom than does the nitrite ion and both have the same charge.
|
|
b.
|
The nitrate ion has
one more oxygen atom than does the nitrite ion and both have the same charge.
|
|
c.
|
In addition to
having one less oxygen atom than nitrite, nitrate also has a larger negative
charge.
|
|
d.
|
In addition to
having one more oxygen atom than nitrite, nitrate also has a larger negative
charge.
|
ANS: B PTS: 1
TOP: 3.3 - HOW DO WE NAME ANIONS AND CATIONS?
31. An ionic bond is associated with which of the following?
|
a.
|
interactions
between nuclei
|
c.
|
unequal sharing of
electrons
|
|
b.
|
equal sharing of
electrons
|
d.
|
the transfer of
electrons
|
ANS: D PTS: 1
TOP: 3.4 - WHAT ARE THE TWO MAJOR TYPES OF
CHEMICAL BONDS?
32. A covalent bond is associated with which of the following?
|
a.
|
interactions
between nuclei
|
c.
|
the transfer of
electrons
|
|
b.
|
the sharing of
electrons
|
d.
|
all of these
|
ANS: B PTS: 1
TOP: 3.4 - WHAT ARE THE TWO MAJOR TYPES OF
CHEMICAL BONDS?
33. High electronegativities are associated with which type of
elements?
|
a.
|
metals
|
c.
|
noble gases
|
|
b.
|
metalloids
|
d.
|
nonmetals
|
ANS: D PTS: 1
TOP: 3.4 - WHAT ARE THE TWO MAJOR TYPES OF
CHEMICAL BONDS?
34. Low electronegativities are associated with which type of
elements?
|
a.
|
metals
|
c.
|
noble gases
|
|
b.
|
metalloids
|
d.
|
nonmetals
|
ANS: A PTS: 1
TOP: 3.4 - WHAT ARE THE TWO MAJOR TYPES OF
CHEMICAL BONDS?
35. Which of the following elements is most electronegative?
|
a.
|
B
|
c.
|
N
|
|
b.
|
C
|
d.
|
O
|
ANS: D PTS: 1
TOP: 3.4 - WHAT ARE THE TWO MAJOR TYPES OF
CHEMICAL BONDS?
36. Which halogen atom is most electronegative?
|
a.
|
bromine
|
c.
|
fluorine
|
|
b.
|
chlorine
|
d.
|
iodine
|
ANS: C PTS: 1
TOP: 3.4 - WHAT ARE THE TWO MAJOR TYPES OF
CHEMICAL BONDS?
37. Which pair of species is most likely to form an ionic bond?
|
a.
|
two electrically
neutral species
|
|
b.
|
two electrically
charged species, one positive and one negative
|
|
c.
|
two negatively
charged species
|
|
d.
|
two positively
charged species
|
ANS: B PTS: 1
TOP: 3.4 - WHAT ARE THE TWO MAJOR TYPES OF
CHEMICAL BONDS?
38. Which of the following situations is most likely to result in
formation of a covalent bond?
|
a.
|
when an
electrically positive species interacts with an electrically negative species
|
|
b.
|
when two
nonmetallic elements interact to form a compound
|
|
c.
|
when two
electrically negative species interact
|
|
d.
|
when two
electrically positive species interact
|
ANS: B PTS: 1
TOP: 3.4 - WHAT ARE THE TWO MAJOR TYPES OF
CHEMICAL BONDS?
39. Which of the following statements is generally true about
electronegativity?
|
a.
|
Electronegativity
decreases as we move left to right and decreases as we move top to bottom.
|
|
b.
|
Electronegativity
decreases as we move left to right and increases as we move top to bottom.
|
|
c.
|
Electronegativity
increases as we move left to right and decreases as we move top to bottom.
|
|
d.
|
Electronegativity
increases as we move left to right and increases as we move top to bottom.
|
ANS: C PTS: 1
TOP: 3.4 - WHAT ARE THE TWO MAJOR TYPES OF CHEMICAL
BONDS?
40. Which of the following occurs when an ionic bond is formed?
|
a.
|
Electrons are
transferred from the more electronegative element to the less electronegative
element.
|
|
b.
|
Electrons are
transferred from the less electronegative element to the more electronegative
element.
|
|
c.
|
Electrons are
shared equally.
|
|
d.
|
Electrons are
shared unequally.
|
ANS: B PTS: 1 TOP: 3.5 - WHAT IS AN IONIC BOND?
41. For which of the following pairs are the atoms most likely to form
an ionic bond with each other?
|
a.
|
carbon and oxygen
|
c.
|
chlorine and oxygen
|
|
b.
|
calcium and
chlorine
|
d.
|
sodium and
magnesium
|
ANS: B PTS: 1 TOP: 3.5 - WHAT IS AN IONIC BOND?
42. Under which of the following conditions is the A—B bond considered
to be ionic?
|
a.
|
when A and B have
the same electronegativity
|
|
b.
|
when the difference
between the electronegativities of the atoms is 1.0
|
|
c.
|
when the difference
between the electronegativities of the atoms is 1.5
|
|
d.
|
when the difference
between the electronegativities of the atoms is 2.0
|
ANS: D PTS: 1 TOP: 3.5 - WHAT IS AN IONIC BOND?
43. Which of the following is true of ionic compounds?
|
a.
|
They are liquids at
room temperature.
|
|
b.
|
They are solids in
which individual molecules are present.
|
|
c.
|
They are solids in
which both cations and anions are present.
|
|
d.
|
Depending on the
compound any one of the above may apply.
|
ANS: C PTS: 1 TOP: 3.5 - WHAT IS AN IONIC BOND?
44. What is the formula of the compound formed by potassium and
chlorine?
|
a.
|
KCl
|
c.
|
KCl3
|
|
b.
|
KCl2
|
d.
|
K2Cl
|
ANS: A PTS: 1 TOP: 3.5 - WHAT IS AN IONIC BOND?
45. What is the formula of the compound formed by calcium and
fluorine?
|
a.
|
CaF
|
c.
|
CaF3
|
|
b.
|
CaF2
|
d.
|
Ca2F
|
ANS: B PTS: 1 TOP: 3.5 - WHAT IS AN IONIC BOND?
46. What is the formula of the compound formed by an iron(III) ion and
oxygen?
|
a.
|
FeO
|
c.
|
Fe2O3
|
|
b.
|
FeO2
|
d.
|
Fe3O2
|
ANS: C PTS: 1 TOP: 3.5 - WHAT IS AN IONIC BOND?
47. What is the formula of the compound formed between barium and
oxygen?
|
a.
|
Ba2O2
|
c.
|
BaO2
|
|
b.
|
Ba2O
|
d.
|
BaO
|
ANS: D PTS: 1 TOP: 3.5 - WHAT IS AN IONIC BOND?
48. Which of the following is the correct way to write the formula of
the compound formed between the barium ion and the sulfate ion?
|
a.
|
Ba2(SO4)2
|
c.
|
Ba(SO4)2
|
|
b.
|
Ba2SO4
|
d.
|
BaSO4
|
ANS: D PTS: 1 TOP: 3.5 - WHAT IS AN IONIC BOND?
49. Which of the following is the correct way to write the formula of
the compound formed between the calcium ion and the sulfate ion?
|
a.
|
Ca2(SO4)2
|
c.
|
Ca(SO4)2
|
|
b.
|
Ca2SO4
|
d.
|
CaSO4
|
ANS: D PTS: 1 TOP: 3.5 - WHAT IS AN IONIC BOND?
50. What is the formula of the compound formed between the ammonium
ion and the carbonate ion?
|
a.
|
NH4CO3
|
c.
|
(NH4)2CO3
|
|
b.
|
NH4(CO3)2
|
d.
|
(NH4)3CO3
|
ANS: C PTS: 1 TOP: 3.5 - WHAT IS AN IONIC BOND?
51. What is the correct name for MgO?
|
a.
|
monomagnesium
monoxide
|
c.
|
magnesium oxide
|
|
b.
|
magnesium monoxide
|
d.
|
magnesium oxygen
|
ANS: C PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
52. What is the correct name for BaI2?
|
a.
|
barium iodine
|
c.
|
barium diiodide
|
|
b.
|
barium iodide
|
d.
|
monobarium diiodide
|
ANS: B PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
53. What is the correct name for KCl?
|
a.
|
monopotassium
monochloride
|
c.
|
potassium chloride
|
|
b.
|
potassium chlorine
|
d.
|
potassium ion
chloride ion
|
ANS: C PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
54. What is the correct name for BaH2?
|
a.
|
monobarium
dihydride
|
c.
|
barium hydrogen
|
|
b.
|
barium dihydride
|
d.
|
barium hydride
|
ANS: D PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
55. AgCl is a chemical commonly used in photography. What is the correct name for AgCl?
|
a.
|
monosilver monochloride
|
c.
|
silver chlorine
|
|
b.
|
silver chloride
|
d.
|
silver monochlorine
|
ANS: B PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
56. What is the correct formula for sodium fluoride?
|
a.
|
NaFI2
|
c.
|
Na2F
|
|
b.
|
NaF
|
d.
|
Na2F2
|
ANS: B PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
57. The term “limelight” is derived from the old name for calcium
oxide. What is the formula of calcium
oxide?
|
a.
|
CaO2
|
c.
|
CaO
|
|
b.
|
Ca2O
|
d.
|
Ca2O2
|
ANS: C PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
58. What is the correct formula for aluminum oxide?
|
a.
|
AlO
|
c.
|
Al2O
|
|
b.
|
AlO2
|
d.
|
Al2O3
|
ANS: D PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
59. The tin compound used to strengthen teeth has the formula SnF2. Which of the following is the common name for
this compound?
|
a.
|
stannic fluoride
|
c.
|
tin fluoride
|
|
b.
|
stannous fluoride
|
d.
|
tin(II) fluorine
|
ANS: B PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
60. The tin compound used to strengthen teeth has the formula SnF2. Which of the following is the correct
systematic name for this compound?
|
a.
|
stannic fluoride
|
c.
|
tin fluoride
|
|
b.
|
stannous fluoride
|
d.
|
tin(II) fluoride
|
ANS: D PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
61. What is the correct systematic name for the compound with the
formula CuCl2?
|
a.
|
cupric chloride
|
c.
|
copper(II) chloride
|
|
b.
|
cuprous chloride
|
d.
|
copper(II) chlorine
|
ANS: C PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
62. What is the correct common name for the compound with the formula
CuCl2?
|
a.
|
copper chloride
|
c.
|
cupric chloride
|
|
b.
|
copper chlorine
|
d.
|
cuprous chloride
|
ANS: C PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
63. The chemical formula of rust is Fe2O3. Which of the following is the correct
systematic name for this compound?
|
a.
|
iron oxide
|
c.
|
iron(III) oxide
|
|
b.
|
iron(II) oxide
|
d.
|
diiron trioxide
|
ANS: C PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
64. The chemical formula of rust is Fe2O3. Which of the following is the correct common
name for this compound?
|
a.
|
iron oxide
|
c.
|
ferrous oxide
|
|
b.
|
ferric oxide
|
d.
|
diiron trioxide
|
ANS: B PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
65. What is the correct name for K2HPO4?
|
a.
|
dipotassium
hydrogen phosphate
|
c.
|
potassium hydrogen
phosphate
|
|
b.
|
potassium hydrogen
phosphoxide
|
d.
|
potassium
dihydrogen phosphate
|
ANS: C PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
66. What is the correct name for KH2PO4?
|
a.
|
potassium hydride
phosphate
|
c.
|
potassium hydrogen
phosphate
|
|
b.
|
potassium hydrogen
phosphoxide
|
d.
|
potassium
dihydrogen phosphate
|
ANS: D PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
67. What is the correct name for Al2(SO4)3?
|
a.
|
dialuminum
trisulfate
|
c.
|
aluminum sulfate
|
|
b.
|
aluminum trisulfate
|
d.
|
aluminum sulfoxide
|
ANS: C PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
68. What is the correct systematic name for FeCO3?
|
a.
|
ferric carbonate
|
c.
|
iron(I) carbonate
|
|
b.
|
ferrous carbonate
|
d.
|
iron(II) carbonate
|
ANS: D PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
69. FeSO4 is commonly used to treat iron deficiency. Which of the following is the correct name
for this compound?
|
a.
|
iron sulfate
|
c.
|
iron(III) sulfate
|
|
b.
|
iron(II) sulfate
|
d.
|
iron sulfur
tetroxide
|
ANS: B PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
70. A compound used in the treatment of manic depression has the
formula Li2CO3.
Which of the following is the correct name for this compound?
|
a.
|
dilithium carbonate
|
c.
|
lithium carbonate
|
|
b.
|
lithium carbon
trioxide
|
d.
|
lithium carboxide
|
ANS: C PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
71. What is the correct name for NH4NO3, a
compound found in fertilizers?
|
a.
|
ammonia nitrate
|
c.
|
ammonia nitrite
|
|
b.
|
ammonium nitrate
|
d.
|
ammonium nitrite
|
ANS: B PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
72. Which of the following compounds is used as an antacid?
|
a.
|
NaHCO3
|
c.
|
Na3PO4
|
|
b.
|
NaNO3
|
d.
|
Na2SO4
|
ANS: A PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
73. Which of the following compounds is used as a radiopaque medium
for X-ray work?
|
a.
|
BaSO4
|
c.
|
FeSO4
|
|
b.
|
CaSO4
|
d.
|
MgSO4
|
ANS: A PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
74. What electronegativity difference is associated with a nonpolar
covalent bond?
|
a.
|
exactly 0
|
c.
|
between 0.5 and 1.9
|
|
b.
|
less than 0.5
|
d.
|
greater than 1.9
|
ANS: B PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
75. Which of the following bonds is the most polar?
|
a.
|
H—F
|
c.
|
H—Br
|
|
b.
|
H—Cl
|
d.
|
H—I
|
ANS: A PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
76. Which of the following bonds is the most polar?
|
a.
|
C—H
|
c.
|
C—O
|
|
b.
|
C—N
|
d.
|
C—F
|
ANS: D PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
77. In which of the following cases is a polar covalent bond formed?
|
a.
|
when an electron is
transferred from one atom to another
|
|
b.
|
when the electrons
of a bond are shared equally by the two atoms
|
|
c.
|
when the electrons
of a bond are shared unequally by the two atoms
|
|
d.
|
when a metallic
element forms a bond with a non-metallic element
|
ANS: C PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
78. Which of the following is true about elements which exist as
diatomic molecules?
|
a.
|
The bond in the
molecule is nonpolar covalent.
|
|
b.
|
The bond in the
molecule is polar covalent.
|
|
c.
|
The bond in the
molecule is ionic.
|
|
d.
|
The type of bond
depends on the specific molecule.
|
ANS: A PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
79. Which Greek letter is used in denoting the spatial distribution of
charge in a polar bond?
|
a.
|
alpha, a
|
c.
|
gamma, g
|
|
b.
|
beta, b
|
d.
|
delta, d
|
ANS: D PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
80. How many electrons are associated with a single bond?
|
a.
|
1
|
c.
|
4
|
|
b.
|
2
|
d.
|
6
|
ANS: B PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
81. How many electrons are associated with a double bond?
|
a.
|
1
|
c.
|
4
|
|
b.
|
2
|
d.
|
6
|
ANS: C PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
82. How many electrons are associated with a triple bond?
|
a.
|
2
|
c.
|
4
|
|
b.
|
3
|
d.
|
6
|
ANS: D PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
83. Formaldehyde has the chemical formula CH2O. How many electrons must be shown in the Lewis
structure of formaldehyde?
|
a.
|
4
|
c.
|
12
|
|
b.
|
8
|
d.
|
16
|
ANS: C PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
84. Formaldehyde has the chemical formula CH2O. How many nonbonding electrons must be shown
in the Lewis structure of formaldehyde?
|
a.
|
0
|
c.
|
8
|
|
b.
|
4
|
d.
|
12
|
ANS: B PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
85. The ammonium ion has the formula NH4+. How many electrons must be shown in the Lewis
structure of the ammonium ion?
|
a.
|
4
|
c.
|
8
|
|
b.
|
5
|
d.
|
9
|
ANS: C PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
86. The toxic gas hydrogen cyanide has the formula HCN. How many electrons must be shown in the Lewis
structure of hydrogen cyanide?
|
a.
|
2
|
c.
|
10
|
|
b.
|
6
|
d.
|
12
|
ANS: C PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
87. The toxic gas hydrogen cyanide has the formula HCN. How many nonbonding electrons must be shown
in the Lewis structure of hydrogen cyanide?
|
a.
|
2
|
c.
|
10
|
|
b.
|
6
|
d.
|
12
|
ANS: A PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
88. How many nonbonding electrons are present in a molecule of water?
|
a.
|
2
|
c.
|
6
|
|
b.
|
4
|
d.
|
8
|
ANS: B PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
89. The ammonium ion has the formula NH4+. How many nonbonding electrons must be shown
in the Lewis structure of the ammonium ion?
|
a.
|
0
|
c.
|
8
|
|
b.
|
4
|
d.
|
9
|
ANS: A PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
90. How many bonds does a carbon atom typically form?
|
a.
|
2
|
c.
|
6
|
|
b.
|
4
|
d.
|
8
|
ANS: B PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
91. Ethylene has the formula C2H4. Which of the following is a correct
description of ethylene?
|
a.
|
Ethylene has only
single bonds.
|
c.
|
Ethylene has one
triple bond.
|
|
b.
|
Ethylene has one
double bond.
|
d.
|
None of these is
correct.
|
ANS: B PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
92. Acetylene has the formula C2H2. Which of the following is a correct
description of acetylene?
|
a.
|
Acetylene has only
single bonds.
|
c.
|
Acetylene has one
triple bond.
|
|
b.
|
Acetylene has one
double bond.
|
d.
|
None of these is
correct.
|
ANS: C PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
93. The toxic gas hydrogen cyanide has the formula HCN. Which of the following is a correct
description of hydrogen cyanide?
|
a.
|
HCN has only single
bonds.
|
|
b.
|
HCN has one single
bond and one double bond.
|
|
c.
|
HCN has one single
bond and one triple bond.
|
|
d.
|
None of these is
correct.
|
ANS: C PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
94. In a Lewis structure, which of the following atoms can have more
than eight electrons associated with it?
|
a.
|
C
|
c.
|
S
|
|
b.
|
O
|
d.
|
none of these
|
ANS: C PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
95. In a Lewis structure, which of the following atoms can have more
than eight electrons associated with it?
|
a.
|
C
|
c.
|
O
|
|
b.
|
N
|
d.
|
none of these
|
ANS: D PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
96. When we name a molecular binary compound which of the following is
true?
|
a.
|
The element which
has more atoms in the molecule is named first.
|
|
b.
|
We name the
elements in alphabetical order.
|
|
c.
|
We name the less
electronegative element first.
|
|
d.
|
We name the more
electronegative element first.
|
ANS: C PTS: 1
TOP: 3.8 - HOW DO WE NAME BINARY COVALENT
COMPOUNDS?
97. Laughing gas, sometimes called nitrous oxide, has the formula N2O. What is the proper chemical name for nitrous
oxide?
|
a.
|
nitrogen oxide
|
c.
|
dinitrogen oxide
|
|
b.
|
nitrogen dioxide
|
d.
|
dinitrogen oxygen
|
ANS: C PTS: 1
TOP: 3.8 - HOW DO WE NAME BINARY COVALENT
COMPOUNDS?
98. What is the name of NO2?
|
a.
|
nitrogen oxide
|
c.
|
nitrogen dioxide
|
|
b.
|
nitrogen oxygen
|
d.
|
nitrous oxide
|
ANS: C PTS: 1
TOP: 3.8 - HOW DO WE NAME BINARY COVALENT
COMPOUNDS?
99. What is the correct chemical name for a compound with the formula
N2O3?
|
a.
|
nitrogen oxide
|
c.
|
nitrogen ozide
|
|
b.
|
nitrogen trioxide
|
d.
|
dinitrogen trioxide
|
ANS: D PTS: 1
TOP: 3.8 - HOW DO WE NAME BINARY COVALENT
COMPOUNDS?
100. What is the name of SCl2?
|
a.
|
sulfur chloride
|
c.
|
monosulfur chloride
|
|
b.
|
sulfur chlorine
|
d.
|
sulfur dichloride
|
ANS: D PTS: 1
TOP: 3.8 - HOW DO WE NAME BINARY COVALENT
COMPOUNDS?
101. What is the systematic name of CS2?
|
a.
|
carbon disulfur
|
c.
|
carbon(IV) sulfide
|
|
b.
|
carbon sulfide
|
d.
|
carbon disulfide
|
ANS: D PTS: 1
TOP: 3.8 - HOW DO WE NAME BINARY COVALENT
COMPOUNDS?
102. What is the correct name for XeF4?
|
a.
|
xenon fluoride
|
c.
|
xenon tetrafluoride
|
|
b.
|
xenon difluoride
|
d.
|
xenon hexafluoride
|
ANS: C PTS: 1
TOP: 3.8 - HOW DO WE NAME BINARY COVALENT
COMPOUNDS?
103. Which of the following is the correct formula for dinitrogen
trioxide?
|
a.
|
O2N3
|
c.
|
N2O3
|
|
b.
|
O3N2
|
d.
|
N3O2
|
ANS: C PTS: 1
TOP: 3.8 - HOW DO WE NAME BINARY COVALENT
COMPOUNDS?
104. Which of the following is the correct formula for dinitrogen
pentoxide?
|
a.
|
O2N5
|
c.
|
N2O5
|
|
b.
|
O5N2
|
d.
|
N5O2
|
ANS: C PTS: 1
TOP: 3.8 - HOW DO WE NAME BINARY COVALENT
COMPOUNDS?
105. Which of the following statements about nitric oxide, NO, is
false?
|
a.
|
NO contains an
unpaired electron.
|
|
b.
|
NO decreases the
ability of the blood to carry oxygen.
|
|
c.
|
NO is an important
signaling molecule in the cardiovascular system.
|
|
d.
|
None, all of the
above are true.
|
ANS: D PTS: 1 TOP: 3.9 - WHAT IS RESONANCE?
106. Which of the following symbols is used to denote that two or more
representations of a species are resonance structures?
|
a.
|
®
|
c.
|
 |
|
b.
|
¬
|
d.
|
«
|
ANS: D PTS: 1 TOP: 3.9 - WHAT IS RESONANCE?
107. Which of the following is true of the individual resonance
structures which contribute to a resonance hybrid?
|
a.
|
Each resonance
structure actually exists.
|
|
b.
|
Each resonance
structure is less stable than is the resonance hybrid.
|
|
c.
|
In going from one
resonance structure to another the electrons move from one location to
another.
|
|
d.
|
None of the above
is true.
|
ANS: B PTS: 1 TOP: 3.9 - WHAT IS RESONANCE?
108. Which of the following is true of the individual resonance
structures which contribute to a resonance hybrid?
|
a.
|
Each resonance
structure actually exists.
|
|
b.
|
Each resonance
structure is more stable than is the resonance hybrid.
|
|
c.
|
In going from one
resonance structure to another the electrons move from one location to
another.
|
|
d.
|
None of the above
is true.
|
ANS: D PTS: 1 TOP: 3.9 - WHAT IS RESONANCE?
109. Which of the following is true in the carbonate ion, CO32–?
|
a.
|
The carbon atom
does not have an octet.
|
|
b.
|
The ion has 22
valence electrons.
|
|
c.
|
The electrons are
constantly moving from one bond location to another.
|
|
d.
|
None of the above
is true.
|
ANS: D PTS: 1 TOP: 3.9 - WHAT IS RESONANCE?
110. Which of the following is true in the carbonate ion, CO32–?
|
a.
|
All of the carbon
to oxygen bonds are equivalent.
|
|
b.
|
The carbon atom
does not have an octet.
|
|
c.
|
The carbon atoms
form two single bonds and one double bond.
|
|
d.
|
The electrons are
constantly moving from one bond location to another.
|
ANS: A PTS: 1 TOP: 3.9 - WHAT IS RESONANCE?
111. Which of the following is expected to be true in the carbonate
ion, CO32-?
|
a.
|
The carbon atom
does not have an octet.
|
|
b.
|
The carbon to
oxygen bond lengths are the consistent with single bonds.
|
|
c.
|
The carbon to
oxygen bond lengths are the consistent with double bonds.
|
|
d.
|
The carbon to
oxygen bonds are shorter than single bonds but longer than double bonds.
|
ANS: D PTS: 1 TOP: 3.9 - WHAT IS RESONANCE?
112. A student is attempting to draw several resonance structures for a
species. Which of the following is
allowed?
|
a.
|
Change the
connectivities of the nuclei.
|
|
b.
|
Move electrons from
one location to another.
|
|
c.
|
both a and b
|
|
d.
|
neither a nor b
|
ANS: B PTS: 1 TOP: 3.9 - WHAT IS RESONANCE?
113. A student is attempting to draw several resonance structures for a
species. Which of the following is
allowed ?
|
a.
|
Change the number
of paired and unpaired electrons.
|
|
b.
|
Move electrons from
one location to another.
|
|
c.
|
both a and b
|
|
d.
|
neither a nor b
|
ANS: B PTS: 1 TOP: 3.9 - WHAT IS RESONANCE?
114. A student is attempting to draw several resonance structures for a
species. Which of the following is
allowed?
|
a.
|
Change the
connectivities of the nuclei.
|
|
b.
|
Change the number
of paired and unpaired electrons.
|
|
c.
|
both a and b
|
|
d.
|
neither a nor b
|
ANS: D PTS: 1 TOP: 3.9 - WHAT IS RESONANCE?
115. To use the VSEPR model to determine the geometry of a molecule we
need to know which of the following?
|
a.
|
the number of atoms
in the molecule
|
|
b.
|
the number of atoms
bonded to the central atom
|
|
c.
|
the number of lone
pairs around the central atom
|
|
d.
|
both b and c
|
ANS: D PTS: 1
TOP: 3.10 - HOW DO WE PREDICT BOND ANGLES IN
COVALENT COMPOUNDS?
116. What bond angle is most closely associated with a tetrahedral
distribution of electron density?
|
a.
|
90°
|
c.
|
120°
|
|
b.
|
109.5°
|
d.
|
180°
|
ANS: B PTS: 1
TOP: 3.10 - HOW DO WE PREDICT BOND ANGLES IN
COVALENT COMPOUNDS?
117. What bond angle is most closely associated with a trigonal planar
distribution of electron density?
|
a.
|
90°
|
c.
|
120°
|
|
b.
|
109.5°
|
d.
|
180°
|
ANS: C PTS: 1
TOP: 3.10 - HOW DO WE PREDICT BOND ANGLES IN
COVALENT COMPOUNDS?
118. What bond angle is most closely associated with a linear
distribution of electron density?
|
a.
|
90°
|
c.
|
120°
|
|
b.
|
109.5°
|
d.
|
180°
|
ANS: D PTS: 1
TOP: 3.10 - HOW DO WE PREDICT BOND ANGLES IN
COVALENT COMPOUNDS?
119. Which of the following molecules is best described as having a
nearly tetrahedral distribution of electron density?
|
a.
|
BeCl2
|
c.
|
SnCl2
|
|
b.
|
OF2
|
d.
|
none of these
|
ANS: B PTS: 1
TOP: 3.10 - HOW DO WE PREDICT BOND ANGLES IN
COVALENT COMPOUNDS?
120. In which of the following molecules does the carbon atom have a
nearly trigonal planar distribution of electron density?
|
a.
|
C2H2
|
c.
|
C2H6
|
|
b.
|
C2H4
|
d.
|
none of these
|
ANS: B PTS: 1
TOP: 3.10 - HOW DO WE PREDICT BOND ANGLES IN
COVALENT COMPOUNDS?
121. In which of the following molecules does the carbon atom have a
linear distribution of electron density?
|
a.
|
C2H2
|
c.
|
C2H6
|
|
b.
|
C2H4
|
d.
|
none of these
|
ANS: A PTS: 1
TOP: 3.10 - HOW DO WE PREDICT BOND ANGLES IN
COVALENT COMPOUNDS?
122. In which of the following molecules does the carbon atom have a
nearly tetrahedral distribution of electron density?
|
a.
|
C2H2
|
c.
|
C2H6
|
|
b.
|
C2H4
|
d.
|
none of these
|
ANS: C PTS: 1
TOP: 3.10 - HOW DO WE PREDICT BOND ANGLES IN
COVALENT COMPOUNDS?
123. Which of the following approximates the H—N—H bond angle in
ammonia, NH3?
|
a.
|
109.5°
|
c.
|
120.0 °
|
|
b.
|
107.3°
|
d.
|
90.0°
|
ANS: B PTS: 1
TOP: 3.10 - HOW DO WE PREDICT BOND ANGLES IN
COVALENT COMPOUNDS?
124. Which of the following is the H—O—H bond angle in water, H2O?
|
a.
|
109.5°
|
c.
|
104.5°
|
|
b.
|
120.0°
|
d.
|
90.0°
|
ANS: C PTS: 1
TOP: 3.10 - HOW DO WE PREDICT BOND ANGLES IN
COVALENT COMPOUNDS?
125. Which of the following describes how a double bond is treated in
the VSEPR model?
|
a.
|
as two single bonds
|
c.
|
as a single region
of electron density
|
|
b.
|
as two nonbonding
pairs
|
d.
|
none of the these
|
ANS: C PTS: 1
TOP: 3.10 - HOW DO WE PREDICT BOND ANGLES IN
COVALENT COMPOUNDS?
126. Which of the following molecules is(are) polar?
|
a.
|
H2O
|
c.
|
both of them
|
|
b.
|
CO2
|
d.
|
neither of them
|
ANS: A PTS: 1
TOP: 3.11 - HOW DO WE DETERMINE IF A MOLECULE IS
POLAR?
127. Which of the following molecules is(are) polar?
|
a.
|
BCl3
|
c.
|
both of them
|
|
b.
|
NH3
|
d.
|
neither of them
|
ANS: B PTS: 1
TOP: 3.11 - HOW DO WE DETERMINE IF A MOLECULE IS
POLAR?
128. Which of the following molecules is(are) polar?
|
a.
|
CCl4
|
c.
|
both of them
|
|
b.
|
CH2Cl2
|
d.
|
neither of them
|
ANS: B PTS: 1
TOP: 3.11 - HOW DO WE DETERMINE IF A MOLECULE IS
POLAR?
129. Which of the following molecules is(are) polar?
|
a.
|
CH3Cl
|
c.
|
both of them
|
|
b.
|
CH2Cl2
|
d.
|
neither of them
|
ANS: C PTS: 1
TOP: 3.11 - HOW DO WE DETERMINE IF A MOLECULE IS
POLAR?
130. Which of the following molecules is(are) polar?
|
a.
|
CH3Cl
|
c.
|
both of them
|
|
b.
|
HCN
|
d.
|
neither of them
|
ANS: C PTS: 1
TOP: 3.11 - HOW DO WE DETERMINE IF A MOLECULE IS
POLAR?
131. Which of the following molecules is nonpolar?
|
a.
|
CHCl3
|
c.
|
CH3Cl
|
|
b.
|
CH2Cl2
|
d.
|
None, they are all
polar.
|
ANS: D PTS: 1
TOP: 3.11 - HOW DO WE DETERMINE IF A MOLECULE IS
POLAR?
132. Which of the following molecules is polar?
|
a.
|
CH3—CH3
|
c.
|
CH3—CHCl2
|
|
b.
|
CH2Cl—CH2Cl
|
d.
|
none of these
|
ANS: C PTS: 1
TOP: 3.11 - HOW DO WE DETERMINE IF A MOLECULE IS
POLAR?
133. Which of the following molecules is(are) polar?
|
a.
|
CH2Cl—CH2Cl
|
c.
|
both a and b
|
|
b.
|
CH3—CHCl2
|
d.
|
neither a nor b
|
ANS: B PTS: 1
TOP: 3.11 - HOW DO WE DETERMINE IF A MOLECULE IS
POLAR?
134. Which of the following is true for the molecule O=C=S?
|
a.
|
O=C=S is nonpolar
because it contains only double bonds.
|
|
b.
|
O=C=S is nonpolar
because it is linear.
|
|
c.
|
O=C=S is polar
because it has a bent shape.
|
|
d.
|
O=C=S is polar
because the polarities of the O=C and C=S do not cancel.
|
ANS: D PTS: 1
TOP: 3.11 - HOW DO WE DETERMINE IF A MOLECULE IS
POLAR?
135. Which of the following is true about a molecule which contains
three polar bonds which have the same degree of polarity?
|
a.
|
The molecule will
always be polar.
|
|
b.
|
The molecule will
never be polar.
|
|
c.
|
The molecule will
be polar if the electron distribution is trigonal planar.
|
|
d.
|
None of the above
is true.
|
ANS: D PTS: 1
TOP: 3.11 - HOW DO WE DETERMINE IF A MOLECULE IS
POLAR?
136. Which of the following is true about a molecule which contains
three polar bonds each of which have the same degree of polarity?
|
a.
|
The molecule will
always be polar.
|
|
b.
|
The molecule will
never be polar.
|
|
c.
|
The molecule will
be polar if the electron distribution is tetrahedral.
|
|
d.
|
None of the above
is true.
|
ANS: C PTS: 1
TOP: 3.11 - HOW DO WE DETERMINE IF A MOLECULE IS
POLAR?
137. Which of the following is true about a molecule which contains two
polar bonds which have the same degree of polarity?
|
a.
|
It will always be
polar.
|
|
b.
|
It will never be
polar.
|
|
c.
|
It will only be
polar if it is bent.
|
|
d.
|
It will only be
polar if it is linear.
|
ANS: C PTS: 1
TOP: 3.11 - HOW DO WE DETERMINE IF A MOLECULE IS
POLAR?
138. Which of the following is true about a molecule which contains two
polar bonds which have the different degrees of polarity?
|
a.
|
It will always be
polar.
|
|
b.
|
It will never be
polar.
|
|
c.
|
It will only be
polar if it is bent.
|
|
d.
|
It will only be
polar if it is linear.
|
ANS: A PTS: 1
TOP: 3.11 - HOW DO WE DETERMINE IF A MOLECULE IS
POLAR?
139. A student discussing bond polarity and molecular polarity in
alcohols made the following statements:
(i) In methanol, CH3OH
the H—O bond is more polar than the C—O bond.
(ii) Ethanol, CH3CH2OH,
the alcohol of alcoholic beverages, has at least one polar bond, a net dipole,
and is a polar molecule.
Which of the above
statements is(are) true?
|
a.
|
only statement (i)
|
c.
|
both statement (i)
and statement (ii)
|
|
b.
|
only statement (ii)
|
d.
|
neither statement
(i) nor statement (ii)
|
ANS: C PTS: 1
TOP: 3.11 - HOW DO WE DETERMINE IF A MOLECULE IS
POLAR?
Examine the following
image representing the structure of a compound.
140. Which of the following is most likely the type of bonding in this
compound?
|
a.
|
ionic
|
c.
|
polar covalent
|
|
b.
|
nonpolar covalent
|
d.
|
electronegative
|
ANS: A PTS: 1 TOP: 3.5 - WHAT IS AN IONIC BOND?
141. Which of the following is a possible formula for the compound
represented in the image?
|
a.
|
KBr
|
d.
|
ICl
|
|
b.
|
HCl
|
e.
|
CaCl2
|
|
c.
|
NO
|
f.
|
more than one of
these
|
ANS: A PTS: 1 TOP: 3.5 - WHAT IS AN IONIC BOND?
142. If the smaller spheres represented Cu+ and the larger
spheres Cl–, what would be
the correct name of this compound?
|
a.
|
copper monochloride
|
|
b.
|
copper(I) chloride
|
|
c.
|
copper(II) chloride
|
|
d.
|
cuprous chloride
|
|
e.
|
cupric chloride
|
|
f.
|
either b or d
|
|
g.
|
either c or d
|
ANS: F PTS: 1
TOP: 3.6 - HOW DO WE NAME IONIC COMPOUNDS?
143. If the larger sphere represented S2-, the smaller sphere might represent which of
the following?
|
a.
|
K+
|
c.
|
Mg2+
|
|
b.
|
O2-
|
d.
|
Al3+
|
ANS: C PTS: 1 TOP: 3.5 - WHAT IS AN IONIC BOND?
The following
represents carbonic acid, an important
part of the buffer system in blood.
144. How many total valence electrons were used in constructing this
structure?
|
a.
|
24
|
|
b.
|
12
|
|
c.
|
17
|
|
d.
|
22
|
|
e.
|
none of these
|
ANS: A PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
145. How many polar bonds are represented in this structure?
|
a.
|
5
|
|
b.
|
3
|
|
c.
|
2
|
|
d.
|
None of the bonds
are polar.
|
ANS: A PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
146. How many single covalent bonds are represented in this structure?
|
a.
|
6
|
c.
|
4
|
|
b.
|
5
|
d.
|
3
|
ANS: C PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
147. How many nonbonding electrons are present in this structure?
|
a.
|
3
|
c.
|
12
|
|
b.
|
6
|
d.
|
The are no
nonbonding electrons.
|
ANS: C PTS: 1 TOP: 3.7 - WHAT IS A COVALENT BOND?
Consider the
following Lewis structure.
148. What is the correct name for this compound?
|
a.
|
monphosphorus
pentachloride
|
|
b.
|
phosphorus chloride
|
|
c.
|
phosphorus
pentachloride
|
|
d.
|
pentaphosphorus
chloride
|
|
e.
|
phophorus
pentachlorine
|
ANS: C PTS: 1
TOP: 3.8 - HOW DO WE NAME BINARY COVALENT
COMPOUNDS?
149. Which of the following correctly characterizes this compound?
|
a.
|
All atoms obey the
octet rule.
|
|
b.
|
40 valence
electrons are represented.
|
|
c.
|
The central atom is
from period 4.
|
|
d.
|
Contains a
metalloid and a nonmetal.
|
|
e.
|
None of these are
true of this compound.
|
ANS: B PTS: 1
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