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WorksheetsIntermolecular Lesson
Total questions: 22
Worksheet time: 11mins
Name
Class
Date
1.
Which kinds of substances are held together by intermolecular forces?
a)
metallic substances
b)
ionic substances
c)
molecules (covalent) in solid and liquid phases
d)
molecules (covalent) in the gas phase
2.
Which of the following is NOT a kind of intermolecular force?
a)
hydrogen bonding
b)
covalent bond
c)
London forces
d)
dipole-dipole attraction
3.
Which is stronger?
a)
metallic, covalent, or ionic bonds
b)
intermolecular forces
4.
Which kind of intermolecular force is strongest?
a)
hydrogen bonding
b)
dipole-dipole attraction
c)
London forces
5.
Hydrogen bonding occurs when hydrogen is bonded to N, O, or F. Which of the following has hydrogen bonding?
a)
CBr4
b)
NO2
c)
H2S
d)
NH3
6.
Does H2O have hydrogen bonding?
a)
yes
b)
no
7.
Does H2S have hydrogen bonding?
a)
yes
b)
no
8.
Does HCl have hydrogen bonding?
a)
yes
b)
no
9.
Does HF have hydrogen bonding?
a)
yes
b)
no
10.
Does CH4 have hydrogen bonding?
a)
yes
b)
no
11.
Does NO2 have hydrogen bonding?
a)
yes
b)
no
12.
Does NH3 have hydrogen bonding?
a)
yes
b)
no
13.
Which is the second strongest intermolecular force, after hydrogen bonding?
a)
dipole-dipole attraction
b)
London forces
14.
Dipole-dipole attraction occurs when molecules are polar. Which of these molecules contains a polar bond?
a)
H2
b)
HCl
c)
Cl2
d)
Br2
15.
Which of these molecules could have dipole-dipole attractions?
a)
S8
b)
CH4 (electronegativity difference = 0.4)
c)
HCl (electronegativity difference = 1.1
)
)
d)
NCl3 (electronegativity difference = 0)
16.
Which of these molecules could have dipole-dipole attraction?
a)
Br2
b)
P4
c)
I2
d)
PCl3
17.
All molecules have London forces between them, but dipole-dipole and hydrogen bonding are so much stronger that when they are present we can ignore London forces. Which of these has ONLY London forces?
a)
I2
b)
NH3
c)
OCl2
d)
SH2
18.
London forces are stronger in heavier atoms or molecules, and weaker in lighter atoms or molecules. Which of these has the strongest London forces?
a)
F2
b)
Br2
c)
I2
d)
Cl2
19.
van der Waals forces include
a)
London forces
b)
dipole-dipole attraction
c)
hydrogen bonding
d)
both London and dipole-dipole attractions
20.
A substance capable of hydrogen bonding has a ___________ boiling point than a similar substance that doesn't hydrogen bond.
a)
higher
b)
lower
21.
In general, substances with stronger intermolecular forces have ___________ boiling points than those with weaker intermolecular forces
a)
higher
b)
lower
22.
Rank these in order of strength:
covalent bond
London forces
hydrogen bond
dipole-dipole attraction
covalent bond
London forces
hydrogen bond
dipole-dipole attraction
a)
dipole-dipole>covalent bond>hydrogen bond>London
b)
London>dipole-diple>hydrogen bond>covalent bond
c)
covalent bond>hydrogen bond>dipole-dipole>London
d)
hydrogen bond>dipole-dipole>London>covalent bond
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