Chapter 11 Liquids and Intermolecular Forces
11.1 Multiple-Choice Questions
1) Crystalline solids ________.
A) have their particles arranged randomly
B) have ordered structures
C) are usually very soft
D) exist only at high temperatures
E) exist only at very low temperatures
Answer: B
Diff: 1 Var: 1 Page Ref: Sec. 11.1
LO: 11.1
GO: G2
2) In liquids, the attractive intermolecular forces are ________.
A) very weak compared with kinetic energies of the molecules
B) strong enough to hold molecules relatively close together
C) strong enough to keep the molecules confined to vibrating about their fixed lattice points
D) not strong enough to keep molecules from moving past each other
E) strong enough to hold molecules relatively close together but not strong enough to keep molecules from moving past each other
Answer: E
Diff: 2 Var: 1 Page Ref: Sec. 11.1
LO: 11.1
GO: G2
3) As a gaseous element condenses, the atoms become ________ and they have ________ attraction for one another.
A) more separated, more
B) more separated, less
C) closer together, more
D) closer together, less
E) larger, greater
Answer: C
Diff: 2 Var: 1 Page Ref: Sec. 11.1
LO: 11.1
GO: G2
4) A gas is ________ and assumes ________ of its container, whereas a liquid is ________ and assumes ________ of its container.
A) compressible, the volume and shape, not compressible, the shape of a portion
B) compressible, the shape, not compressible, the volume and shape
C) compressible, the volume and shape, compressible, the volume
D) condensed, the volume and shape, condensed, the volume and shape
E) condensed, the shape, compressible, the volume and shape
Answer: A
Diff: 1 Var: 1 Page Ref: Sec. 11.1
LO: 11.1
GO: G2
5) Together, liquids and solids constitute ________ phases of matter.
A) the compressible
B) the fluid
C) the condensed
D) all of the
E) the disordered
Answer: C
Diff: 1 Var: 1 Page Ref: Sec. 11.1
LO: 11.1
GO: G2
6) Which statement is true about liquids but not true about solids?
A) They flow and are highly ordered.
B) They are highly ordered and not compressible.
C) They flow and are compressible.
D) They assume both the volume and the shape of their containers.
E) They flow and are not compressible.
Answer: E
Diff: 2 Var: 1 Page Ref: Sec. 11.1
LO: 11.1
GO: G2
7) The strongest interparticle attractions exist between particles of a ________, and the weakest interparticle attractions exist between particles of a ________.
A) solid, liquid
B) solid, gas
C) liquid, gas
D) liquid, solid
E) gas, solid
Answer: B
Diff: 1 Var: 1 Page Ref: Sec. 11.1
LO: 11.1
GO: G2
8) Which species has London dispersion forces as the only intermolecular force?
A) CH3CH2OH
B) Ar
C) NH3
D) HBr
E) H2O
Answer: B
Diff: 2 Var: 1 Page Ref: Sec. 11.2
LO: 11.1
GO: G2
9) Which molecule has hydrogen bonding as the predominant intermolecular force?
A) CH4
B) C6H6
C) CH3OH
D) CO2
E) C4H10
Answer: C
Diff: 3 Var: 1 Page Ref: Sec. 11.2
LO: 11.1
GO: G2
10) Which species has London dispersion forces as the only intermolecular force?
A) KBr
B) HI
C) CH3OH
D) CH3CH3
E) CH3F
Answer: D
Diff: 2 Var: 1 Page Ref: Sec. 11.2
LO: 11.1
GO: G2
11) When KBr dissolves in water, aqueous K+ and Br- ions result. The force of attraction that exists between K+ and H2O is called a(n) ________ interaction.
A) dipole-dipole
B) ion-dipole
C) ion-ion
D) London dispersion force
E) hydrogen bonding
Answer: B
Diff: 2 Var: 1 Page Ref: Sec. 11.2
LO: 11.1
GO: G2
12) ________ are particularly polarizable.
A) Small nonpolar molecules
B) Small polar molecules
C) Large nonpolar molecules
D) Large polar molecules
E) Large molecules, regardless of their polarity,
Answer: E
Diff: 2 Var: 1 Page Ref: Sec. 11.2
LO: 11.2
GO: G2
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