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CH06B Polarity

Total questions: 99

Worksheet time: 1hrs 11mins

Name
Class
Date
1.
A molecule containing polar covalent bonds is always polar.
a)
True
b)
False
2.

Which of the following molecules, based on the elements present, would be most polar?

a)

HF

b)

H2

c)

HCl

d)

HBr

e)

HI

3.

Which statement explains why ethene does NOT dissolve in water?

a)

Ethene is polar and water is nonpolar.

b)

Ethene is nonpolar and water is nonpolar.

c)

Ethene is polar and water is polar.

d)

Ethene is nonpolar and water is polar.

4.
Which formula represents a nonpolar molecule?
a)
HBr
b)
H2S
c)
CBr4
d)
PCl3
5.

Which of the following molecular geometries could be nonpolar? Mark all that apply.

a)

bent

b)

tetrahedral

c)

trigonal pyrimidal

d)

none of the above

e)

linear

6.
Which of the following is a polar molecule?
a)
CH4
b)
Xe
c)
H2O
d)
CO2
7.

Polar or Nonpolar?

a)

polar

b)

nonpolar

8.

Polar or Nonpolar?

a)

polar

b)

nonpolar

9.

Polar or Nonpolar?

a)

polar

b)

nonpolar

10.

Polar or Nonpolar?

a)

polar

b)

nonpolar

11.

Polar or Nonpolar?

a)

polar

b)

nonpolar

12.

Polar or Nonpolar?

a)

polar

b)

nonpolar

13.

Polar or Nonpolar?

a)

polar

b)

nonpolar

14.

Polar or Nonpolar?

a)

polar

b)

nonpolar

15.

Polar or Nonpolar?

a)

polar

b)

nonpolar

16.

Polar or Nonpolar?

a)

polar

b)

nonpolar

17.

Polar or Nonpolar?

a)

polar

b)

nonpolar

18.

Polar or Nonpolar?

a)

polar

b)

nonpolar

19.

Polar or Nonpolar?

a)

polar

b)

nonpolar

20.

Polar or Nonpolar?

a)

polar

b)

nonpolar

21.

Polar or Nonpolar?

a)

polar

b)

nonpolar

22.

Polar or Nonpolar?

a)

polar

b)

nonpolar

23.

Polar or Nonpolar?

a)

polar

b)

nonpolar

24.

Polar or Nonpolar?

a)

polar

b)

nonpolar

25.

Polar or Nonpolar?

a)

polar

b)

nonpolar

26.

Polar or Nonpolar?

a)

polar

b)

nonpolar

27.

Polar or Nonpolar?

a)

polar

b)

nonpolar

28.

Polar or Nonpolar?

a)

polar

b)

nonpolar

29.

Polar or Nonpolar?

a)

polar

b)

nonpolar

30.

Polar or Nonpolar?

a)

polar

b)

nonpolar

31.

Polar or Nonpolar?

a)

polar

b)

nonpolar

32.

Polar or Nonpolar?

a)

polar

b)

nonpolar

33.

Polar or Nonpolar?

a)

polar

b)

nonpolar

34.

Polar or Nonpolar?

a)

polar

b)

nonpolar

35.

Polar or Nonpolar?

a)

polar

b)

nonpolar

36.

Bond dipoles are shown. What does the molecular dipole look like?

a)

bond dipoles cancel out; no molecular dipole

b)

points to the right toward atom C

c)

points to the left toward atom A

d)

points upward

e)

points downward

37.

Bond dipoles are shown.

Polar or nonpolar?

a)

polar

b)

nonpolar

38.

Bond dipoles are shown. What is the partially negative end of the molecule?

a)

atom A

b)

atom B

c)

atom C

d)

There are no partial charges on this molecule.

e)

Both atoms A & C will be partially negative

39.

Bond dipoles are shown. What does the molecular dipole look like?

a)

bond dipoles cancel out; no molecular dipole

b)

points to the right toward atom C

c)

points to the left toward atom A

d)

points upward

e)

points downward

40.

Bond dipoles are shown.

Polar or nonpolar?

a)

polar

b)

nonpolar

41.

Bond dipoles are shown. What is the partially negative end(s) of the molecule?

a)

atom A

b)

atom B

c)

atom C

d)

There are no partial charges on this molecule.

e)

Both atoms A & C will have partial negative charges.

42.

Bond dipoles are shown. What does the molecular dipole look like?

a)

bond dipoles cancel out; no molecular dipole

b)

points to the right toward atom C

c)

points to the left toward atom A

d)

points upward

e)

points downward

43.

Bond dipoles are shown.

Polar or nonpolar?

a)

polar

b)

nonpolar

44.

Bond dipoles are shown. What is the partially negative end of the molecule?

a)

atom A

b)

atom B

c)

atom C

d)

There are no partial charges on this molecule.

e)

Both atoms A & C will be partially negative

45.

Bond dipoles are shown. What does the molecular dipole look like?

a)

bond dipoles cancel out; no molecular dipole

b)

points to the right toward atom C

c)

points to the left toward atom A

d)

points upward

e)

points downward

46.

Bond dipoles are shown.

Polar or nonpolar?

a)

polar

b)

nonpolar

47.

Bond dipoles are shown. What is the partially negative part of the molecule?

a)

atom A

b)

atom B

c)

atom C

d)

There are no partial charges on this molecule.

e)

Both atoms A & C are partially negative

48.

Bond dipoles are shown. What does the molecular dipole look like?

a)

no molecular dipole

b)

points to the right toward atom C

c)

points to the left toward atom A

d)

points upward

e)

points downward

49.

Bond dipoles are shown.

Polar or nonpolar?

a)

polar

b)

nonpolar

50.

Bond dipoles are shown. What is the partially negative end of the molecule?

a)

atom A

b)

atom B

c)

atom C

d)

There are no partial charges on this molecule.

e)

Both atoms A & C are partially negative

51.

Bond dipoles are shown. What does the molecular dipole look like?

a)

no molecular dipole

b)

points to the right toward atom C

c)

points to the left toward atom A

d)

points upward

e)

points downward

52.

Bond dipoles are shown.

Polar or nonpolar?

a)

polar

b)

nonpolar

53.

Bond dipoles are shown. What is the largest partially negative end of the molecule?

a)

atom A

b)

atom B

c)

atom C

d)

There are no partial charges on this molecule.

54.

Bond dipoles are shown. What does the molecular dipole look like?

a)

no molecular dipole

b)

points to the right toward atom C

c)

points to the left toward atom A

d)

points upward

e)

points downward

55.

Bond dipoles are shown.

Polar or nonpolar?

a)

polar

b)

nonpolar

56.

Bond dipoles are shown. Where is the largest partially negative end of the molecule?

a)

atom A

b)

atom B

c)

atom C

d)

There are no partial charges on this molecule.

57.

Bond dipoles are shown. What does the molecular dipole look like?

a)

no molecular dipole

b)

points up and to the right toward atom C

c)

points down and to the left toward atom A

d)

points straight upward

e)

points straight downward

58.

Bond dipoles are shown.

Polar or nonpolar?

a)

polar

b)

nonpolar

59.

Bond dipoles are shown. What is the partially negative end of the molecule?

a)

atoms A & C end of the molecule

b)

atom B end of the molecule

c)

There are no partial charges on this molecule.

60.

Bond dipoles are shown. What does the molecular dipole look like?

a)

no molecular dipole

b)

points up and to the right toward atom C

c)

points down and to the left toward atom A

d)

points straight upward

e)

points straight downward

61.

Bond dipoles are shown.

Polar or nonpolar?

a)

polar

b)

nonpolar

62.

Bond dipoles are shown. What is the partially negative end of the molecule?

a)

atoms A & C end of the molecule

b)

atom B end of the molecule

c)

There are no partial charges on this molecule.

63.

Bond dipoles are shown. What does the molecular dipole look like?

a)

no molecular dipole

b)

points up and to the right toward atom C

c)

points down and to the left toward atom A

d)

points down and to the right toward atom C

e)

points up and to the left toward atom A

64.

Bond dipoles are shown.

Polar or nonpolar?

a)

polar

b)

nonpolar

65.

Bond dipoles are shown. What is the partially negative end of the molecule?

a)

bigger δ– charge on atom A end of the molecule, smaller on atom C

b)

atom B end of the molecule

c)

There are no partial charges on this molecule.

d)

atoms A & C ends of the molecule (equally)

e)

bigger δ– charge on atom C end of the molecule, smaller on atom A

66.

Bond dipoles are shown. What does the molecular dipole look like?

a)

no molecular dipole

b)

points up and to the right toward atom C

c)

points down and to the left toward atom A

d)

points down and to the right toward atom C

e)

points up and to the left toward atom A

67.

Bond dipoles are shown.

Polar or nonpolar?

a)

polar

b)

nonpolar

68.

Bond dipoles are shown. What is the partially negative end of the molecule?

a)

bigger δ– charge on atom A end of the molecule, smaller on atom C

b)

atom B end of the molecule

c)

There are no partial charges on this molecule.

d)

atoms A & C ends of the molecule (equally)

e)

bigger δ– charge on atom C end of the molecule, smaller on atom A

69.

Bond dipoles are shown. What does the molecular dipole look like?

a)

no molecular dipole

b)

points up and to the right toward atom C

c)

points down and to the left toward atom A

d)

points down and to the right toward atom C

e)

points up and to the left toward atom A

70.

Bond dipoles are shown.

Polar or nonpolar?

a)

polar

b)

nonpolar

71.

Bond dipoles are shown. What is the partially negative end of the molecule?

a)

bigger δ– charge on atom A end of the molecule, smaller on atom C

b)

atom B end of the molecule

c)

There are no partial charges on this molecule.

d)

atoms A & C ends of the molecule (equally)

e)

bigger δ– charge on atom C end of the molecule, smaller on atom A

72.

Bond dipoles are shown. What does the molecular dipole look like?

a)

no molecular dipole

b)

points up and to the right toward atom C

c)

points down and to the left toward atom A

d)

points down and to the right toward atom C

e)

points up and to the left toward atom A

73.

Bond dipoles are shown.

Polar or nonpolar?

a)

polar

b)

nonpolar

74.

Bond dipoles are shown. What is the partially negative end of the molecule?

a)

bigger δ– charge on atom A end of the molecule, smaller on atom C

b)

atom B end of the molecule

c)

There are no partial charges on this molecule.

d)

atoms A & C ends of the molecule (equally)

e)

bigger δ– charge on atom C end of the molecule, smaller on atom A

75.

Which of the following molecular geometries are always polar? Mark all that apply.

a)

bent

b)

tetrahedral

c)

trigonal pyrimidal

d)

none of the above

e)

linear

76.

Which statement explains why carbon tetrachloride (CCl4) does NOT dissolve in water?

a)

CCl4 is polar and water is nonpolar.

b)

CCl4 is nonpolar and water is nonpolar.

c)

CCl4 is polar and water is polar.

d)

CCl4 is nonpolar and water is polar.

77.

Which statement explains why methanol (MeOH) dissolves in water?

a)

MeOH is polar and water is nonpolar.

b)

MeOH is nonpolar and water is nonpolar.

c)

MeOH is polar and water is polar.

d)

MeOH is nonpolar and water is polar.

78.

Which statement explains why ethanol (EtOH) dissolves in water?

a)

EtOH is polar and water is nonpolar.

b)

EtOH is nonpolar and water is nonpolar.

c)

EtOH is polar and water is polar.

d)

EtOH is nonpolar and water is polar.

79.

Which statement explains why octane (C8H18) does NOT dissolve in water?

a)

C8H18 is polar and water is nonpolar.

b)

C8H18 is nonpolar and water is nonpolar.

c)

C8H18 is polar and water is polar.

d)

C8H18 is nonpolar and water is polar.

80.

Which statement explains why isopropanol (CH3CHOHCH3) dissolves in water?

a)

CH3CHOHCH3 is polar and water is nonpolar.

b)

CH3CHOHCH3 is nonpolar and water is nonpolar.

c)

CH3CHOHCH3 is polar and water is polar.

d)

CH3CHOHCH3 is nonpolar and water is polar.

81.

Which statement explains why hexane (C6H14) dissolves in carbon tetrachloride (CCl4)?

a)

C6H14 is polar and CCl4 is nonpolar.

b)

C6H14 is nonpolar and CCl4 is nonpolar.

c)

C6H14 is polar and CCl4 is polar.

d)

C6H14 is nonpolar and CCl4 is polar.

82.

Which statement explains why hexane (C6H14) dissolves in octane (C8H18)?

a)

C6H14 is polar and C8H18 is nonpolar.

b)

C6H14 is nonpolar and C8H18 is nonpolar.

c)

C6H14 is polar and C8H18 is polar.

d)

C6H14 is nonpolar and C8H18 is polar.

83.

A molecule containing all nonpolar covalent bonds is always nonpolar.

a)

True

b)

False

84.

Which of the following molecules, based on the elements present, would be most polar?

a)

HAt

b)

H2

c)

HCl

d)

HBr

e)

HI

85.

Which of the following molecules, based on the elements present, would be most polar?

a)

HAt

b)

HF

c)

HBr

d)

HI

86.

Which of the following molecules, based on the elements present, would be least polar?

a)

HF

b)

HI

c)

HCl

d)

HBr

87.

Which of the following molecules, based on the elements present, would be nonpolar?

a)

HF

b)

H2

c)

HCl

d)

HBr

e)

HI

88.

Which of the following molecules, based on the elements present, would be most polar?

a)

H2O

b)

H2S

c)

H2Se

d)

H2Te

89.

Which of the following molecules, based on the elements present, would be least polar?

a)

H2O

b)

H2S

c)

H2Se

d)

H2Te

90.

Which of the following are nonpolar or considered nonpolar because they are insoluble or slightly soluble in water? Mark all that apply.

a)

alkanes with short hydrocarbon chains (1-4 carbons)

b)

alkanes with long hydrocarbon chains (8 or more carbons)

c)

alcohols with long hydrocarbon chains (8 or more carbons)

d)

alcohols with short hydrocarbon chains (1-3 carbons)

91.

Is ethane (C2H6), polar or nonpolar?

a)

nonpolar

b)

polar

92.

Is propane (C3H8), polar or nonpolar?

a)

nonpolar

b)

polar

93.

Is butane (C4H10), polar or nonpolar?

a)

nonpolar

b)

polar

94.

Is pentane (C5H12), polar or nonpolar?

a)

nonpolar

b)

polar

95.

Is methanol (CH3OH), polar or nonpolar?

a)

nonpolar

b)

polar

96.

Is ethanol (CH3CH2OH), polar or nonpolar?

a)

nonpolar

b)

polar

97.

Is n-propanol (CH3CH2CH2OH), polar or nonpolar?

a)

nonpolar

b)

polar

98.

Is isopropanol (CH3CHOHCH3), polar or nonpolar?

a)

nonpolar

b)

polar

99.

Which of the following are polar and are miscible (infinitely soluble) in water?

a)

alkanes with short hydrocarbon chains (1-4 carbons)

b)

alkanes with long hydrocarbon chains (8 or more carbons)

c)

alcohols with long hydrocarbon chains (8 or more carbons)

d)

alcohols with short hydrocarbon chains (1-3 carbons)

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