Chapter 11 Quiz
Chapter 11 Quiz - Intermolecular Forces
- 1.
Which of the following molecules displays hydrogen bonding?
- A.
HF
- B.
CH3CH2CH3
- C.
H2S
- D.
NF3
Correct Answer
A. HF -
- 2.
Which of the following is an INCORRECT association?
- A.
H2 (s) --> H2 (g) sublimation
- B.
H2O (l) --> H2O (s) melting
- C.
CH3OH (l) --> CH3OH (g) condensation
- D.
CH4 (g) --> CH4 (s) deposition
Correct Answer
C. CH3OH (l) --> CH3OH (g) condensation -
- 3.
Rank the following according to increasing boiling point: He, Kr, H2O, NaCl
- A.
He < Kr < NaCl < H2O
- B.
Kr < He < NaCl < H2O
- C.
He < Kr < H2O < NaCl
- D.
NaCl < H2O < Kr < He
Correct Answer
C. He < Kr < H2O < NaCl -
- 4.
Arrange the following according to increasing melting point: CBr4, Ne, CH4, CI4, CF4
- A.
CBr4 < CF4 < CI4 < CH4 < Ne
- B.
CI4 < CBr4 < CF4 < CH4 < Ne
- C.
Ne < CI4 < CBr4 < CF4 < CH4
- D.
Ne < CH4 < CF4 < CBr4 < CI4
Correct Answer
D. Ne < CH4 < CF4 < CBr4 < CI4 -
- 5.
Which of the following statements is INCORRECT?
- A.
Liquids with weak intermolecular forces tend to have high vapor pressures.
- B.
Liquids with weak intermolecular forces tend to have high boiling points.
- C.
Liquids with strong intermolecular forces tend to have high surface tension.
- D.
Cohesion forces refer to intermolecular attractions between like molecules.
Correct Answer
B. Liquids with weak intermolecular forces tend to have high boiling points. -
- 6.
Which of the following does NOT apply to liquid carbon tetrachloride, CCl4 (l) ?
- A.
Has a definite volume and assumes the shape of its container
- B.
Is a nonpolar molecule
- C.
Has dipole-dipole interactions
- D.
Exhibits dispersion forces
Correct Answer
C. Has dipole-dipole interactions -
- 7.
Which of the following molecules exhibits dipole-dipole interactions?
- A.
CO2
- B.
H2S
- C.
BeH2
- D.
N2
Correct Answer
B. H2S -
- 8.
Which of the following statements about phase diagrams is FALSE?
- A.
The line separating liquid and vapor represents boiling.
- B.
The line separating solid and vapor represents sublimation.
- C.
The point at which all three phases coexist is called the critical point.
- D.
It is possible for a substance to have more than three phases.
Correct Answer
C. The point at which all three phases coexist is called the critical point. -
- 9.
According to the heating curve for water,
- A.
The temperature of water rises as it is boiled.
- B.
The temperature of water rises as it freezes.
- C.
The temperature of water goes down when it freezes.
- D.
The temperature of water remains constant as it melts.
Correct Answer
D. The temperature of water remains constant as it melts. -
- 10.
Of the four major intermolecular interactions, which one is normally considered the STRONGEST?
- A.
Ionic attractions
- B.
London dispersion forces
- C.
Dipole-dipole forces
- D.
Hydrogen bonds
Correct Answer
A. Ionic attractions -
- 11.
Which of these substances would exhibit the WEAKEST dispersion forces?
- A.
CO2
- B.
SiF4
- C.
XeF4
- D.
O2
Correct Answer
D. O2 -
- 12.
Since water tends to form spherical droplets, we say it has a high
- A.
Surface tension
- B.
Melting point
- C.
Dropletization
- D.
Dispersion force
Correct Answer
A. Surface tension -
- 13.
At temperatures and pressures higher than the critical point for a substance, only a ____ can exist.
- A.
Liquid
- B.
Plasma
- C.
Supercritical fluid
- D.
Solid
Correct Answer
C. Supercritical fluid -
- 14.
Which of the following substances would exhibit ionic forces?
- A.
NF3
- B.
AlF3
- C.
SiF4
- D.
CF4
Correct Answer
B. AlF3 -
- 15.
Kr has stronger London dispersion forces than Ne because
- A.
Kr has more elections than Ne.
- B.
Kr has a greater mass than Ne.
- C.
Kr has a greater shielding effect than Ne.
- D.
All of the above
Correct Answer
A. Kr has more elections than Ne. -
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Current Version
-
Jan 21, 2013Quiz Edited by
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Dec 06, 2010Quiz Created by
Jkrug
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