chapter10 PQ
CHAPTER 10
Liquids and Solids
1.
Order the intermolecular forces (dipole-dipole, London dispersion, ionic, and hydrogen-bonding) from weakest to strongest .
a)
dipole-dipole, London dispersion, ionic, and hydrogen-bonding
b)
London dispersion, dipole-dipole, hydrogen-bonding, and ionic
c)
hydrogen-bonding, dipole-dipole, London dispersion, and ionic
d)
dipole-dipole, ionic, London dispersion, and hydrogen-bonding
e)
London dispersion, ionic, dipole-dipole, and hydrogen-bonding
Ans: b
2.
Hydrogen bonds account for which of the following observation?
a)
Hydrogen naturally exists as a diatomic molecule.
b)
Hydrogen is easily combustible with oxygen.
c)
Water molecules are bent or "V-shaped."
d)
Air is more dense than hydrogen gas.
e)
For its molar mass, water has a high boiling point.
Ans: e
3.
Which of the following would you expect to have the highest boiling point?
a)
F2
b)
Cl2
c)
Br2
d)
I2
e)
All of the above have the same boiling point.
Ans: d
4.
Which of the following should have the lowest boiling point?
a)
Na2S
b)
HF
c)
NH3
d)
N2
e)
H2O
Ans: d
5.
Which of the species below would you expect to show the least hydrogen bonding?
a)
NH3
b)
H2O
c)
HF
d)
CH4
e)
all the same
Ans: d
6.
The molecules in a sample of solid SO2 are attracted to each other by a combination of
a)
London forces and H-bonding
b)
H-bonding and ionic bonding
c)
covalent bonding and dipole-dipole interactions
d)
London forces and dipole-dipole interactions
e)
none of these
Ans: d
7.
In which of the following groups of substances would dispersion forces be the only significant factors in determining boiling points?
I. Cl2
II. HF
III. Ne
IV. KNO2
V. CCl4
2
Chapter 10: Liquids and Solids
a)
b)
c)
d)
e)
Ans:
8.
I, III, V
I, II, III
II, IV
II, V
III, IV, V a The elements of group 5A, the nitrogen family, form compounds with hydrogen having the boiling points listed below:
SbH3 –17°C, AsH3 –55°C, PH3 –87°C, NH3 –33°C
The first three compounds illustrate a trend where the boiling
Liquids and Solids
1.
Order the intermolecular forces (dipole-dipole, London dispersion, ionic, and hydrogen-bonding) from weakest to strongest .
a)
dipole-dipole, London dispersion, ionic, and hydrogen-bonding
b)
London dispersion, dipole-dipole, hydrogen-bonding, and ionic
c)
hydrogen-bonding, dipole-dipole, London dispersion, and ionic
d)
dipole-dipole, ionic, London dispersion, and hydrogen-bonding
e)
London dispersion, ionic, dipole-dipole, and hydrogen-bonding
Ans: b
2.
Hydrogen bonds account for which of the following observation?
a)
Hydrogen naturally exists as a diatomic molecule.
b)
Hydrogen is easily combustible with oxygen.
c)
Water molecules are bent or "V-shaped."
d)
Air is more dense than hydrogen gas.
e)
For its molar mass, water has a high boiling point.
Ans: e
3.
Which of the following would you expect to have the highest boiling point?
a)
F2
b)
Cl2
c)
Br2
d)
I2
e)
All of the above have the same boiling point.
Ans: d
4.
Which of the following should have the lowest boiling point?
a)
Na2S
b)
HF
c)
NH3
d)
N2
e)
H2O
Ans: d
5.
Which of the species below would you expect to show the least hydrogen bonding?
a)
NH3
b)
H2O
c)
HF
d)
CH4
e)
all the same
Ans: d
6.
The molecules in a sample of solid SO2 are attracted to each other by a combination of
a)
London forces and H-bonding
b)
H-bonding and ionic bonding
c)
covalent bonding and dipole-dipole interactions
d)
London forces and dipole-dipole interactions
e)
none of these
Ans: d
7.
In which of the following groups of substances would dispersion forces be the only significant factors in determining boiling points?
I. Cl2
II. HF
III. Ne
IV. KNO2
V. CCl4
2
Chapter 10: Liquids and Solids
a)
b)
c)
d)
e)
Ans:
8.
I, III, V
I, II, III
II, IV
II, V
III, IV, V a The elements of group 5A, the nitrogen family, form compounds with hydrogen having the boiling points listed below:
SbH3 –17°C, AsH3 –55°C, PH3 –87°C, NH3 –33°C
The first three compounds illustrate a trend where the boiling