Prince George’s Community College
CHM1010
QUIZ 5B-CHAPTER 11
Multiple Choice Questions
1) What is the strongest type of intermolecular force present in H2?
A) ion-dipole
B) dipole-dipole C) dispersion
D) hydrogen bonding E) none of the above
Answer: C
2) What is the strongest type of intermolecular force present in CHF3?
A) ion-dipole
B) dispersion
C) hydrogen bonding
D) dipole-dipole E) none of the above
Answer: D
3) Identify the compound that does not have dipole-dipole forces as its
strongest force.
A) CH2Cl2 B) CH3OCH3
Answer: E
C) CH3Br
D) HCCl3
E) CO2
4) Which of the following compounds exhibits hydrogen bonding?
A) CH3Cl
B) HI
C) CH3OCH3
D) NH3
Answer: D
5) Identify the compound that does not have hydrogen bonding.
A) (CH3)3N
B) H2O
C) CH3OH D) HF
E) CH3NH2
Answer: A
6) Choose the pair of substances that are most likely to form a
homogeneous solution.
A) NaCl and Hg
D) Br2 and PF3
B) LiF and C6H14
E) NH3 and CH3OH
C) C3H8 and C2H5OH
Answer: E
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7) In liquid propanol,
CH3CH2CH2OH
which intermolecular forces are present?
A) Dispersion, hydrogen bonding and dipole-dipole forces are present.
B) Only dipole-dipole and ion-dipole forces are present.
C) Only dispersion and dipole-dipole forces are present.
D) Only hydrogen bonding forces are present.
Answer: A
8)Which of the following compounds exhibits only dispersion
and dipole-dipole intermolecular interactions?
A) H2
B) HI C) CO2
D) CH3NH2
Answer: B
9) Based on the figure above, the boiling point of diethyl ether under an
external pressure of 1.32 atm is __________°C.
A) 10 B) 20 C) 30 D) 40 E) 0
Answer: D
10)
SF6
following substances in order of increasing vapor pressure at a
given temperature.
SiH4
SF4
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A) SF6 < SiH4 < SF4
B) SiH4 < SF4 < SF6
C) SF6 < SF4 < SiH4
D) SF4 < SF6 < SiH4
E) SiH4 < SF6 < SF4
Answer: D
11) Assign the appropriate labels to the phase diagram shown below.
A) A = liquid, B = solid, C = gas, D = critical point
B) A = gas, B = solid, C = liquid, D = triple point
C) A = gas, B = liquid, C = solid, D = critical point
D) A = solid, B = gas, C = liquid, D = supercritical fluid
E) A = liquid, B = gas, C = solid, D = triple point
Answer: B
12) Consider the phase diagram shown. Choose the statement below that is
TRUE.
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A) The triple point of this substance occurs at a temperature of 31°C.
B) At 10 atm of pressure, there is no temperature where the
liquid phase of this substance would exist.
C) The solid phase of this substance is higher in density than the liquid
phase.
D) The line separating the solid and liquid phases represents the
ΔHvap.
E) None of the above are true.
Answer: C
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