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Dipole-Dipole

Total questions: 23

Worksheet time: 22mins

Name
Class
Date
1.

Hydrogen bonding occurs when a hydrogen atom bonded to N, O, or F is attracted to another molecule's N, O or F atom. Which of the following can participate in hydrogen bonding?

a)

CBr4

b)

NO2

c)

H2S

d)

NH3

2.

All molecules can exhibit London dispersion forces, but dipole-dipole and hydrogen bonding are stronger attractions for molecules with similar masses/numbers of electrons when they are present. Which of these can ONLY exhibit London dispersion forces?

a)

I2

b)

NH3

c)

OCl2

d)

CH3Cl

3.

Dipole-dipole attractions occur between polar molecules. Which of these molecules is polar?

a)

H2

b)

HCl

c)

Cl2

d)

Br2

4.

A Lewis structure for acetone is shown above. (There is a carbon atom at the center that isn't shown) What type of intermolecular forces will be present between the molecules of acetone in a pure sample of acetone? Select all that apply.

a)

ion-dipole attractions

b)

dipole-dipole attractions

c)

hydrogen bonding

d)

London dispersion forces

5.

The weaker the intermolecular forces of a substance, the _____________ the boiling point.

a)

higher

b)

lower

6.
Which of the following has the highest boiling point?
a)
H2
b)
NH3
c)
N2
d)
O2
7.

Which of the following explains the relatively high melting and boiling point of water?

a)

Strong dipole-dipole attractions between water molecules

b)

Strong hydrogen bonds between water molecules

c)

London dispersion forces between water molecules

d)

Dipole-induced dipole attractions between water molecules

8.

London dispersion forces are stronger between atoms or molecules with more electrons, and weaker between atoms or molecules with fewer electrons. Which of the following has the strongest London dispersion forces?

a)

F2

b)

Br2

c)

I2

d)

Cl2

9.

Which of the following intermolecular forces can all types of particles exhibit?

a)

London dispersion forces

b)

dipole-dipole forces

c)

hydrogen bonding

d)

none of the above

10.

A Lewis structure for carbon dioxide is shown below. What types of intermolecular attractions can be present between molecules of carbon dioxide in a pure CO2 sample? Select all that apply

a)

London dispersion forces

b)

dipole-dipole attractions

c)

hydrogen bonds

d)

ion-dipole attractions

11.

Which of these molecules can participate in dipole-dipole attractions? Select all that apply.

a)

Br2

b)

CF4

c)

I2

d)

PCl3

e)

CO

12.
Which of the following molecules would have the lowest boiling point?
a)
CH4
b)
C2H6
c)
C3H8
d)
C4H10
13.

Propane is a gas at room temperature, while bromine is a liquid at room temperature. Which statement correctly explains these observations?

a)

Bromine has weaker intermolecular forces than propane does

b)

Bromine has greater molecular polarity than propane does

c)

Bromine has weaker molecular polarity than propane does

d)

Bromine has stronger intermolecular forces than propane does

14.

Which numbered arrow in the image above points to a hydrogen bond?

a)

1

b)

2

c)

3

d)

4

15.

What is the strongest type of intermolecular force one H2S molecule will exhibit?

a)

dipole-dipole attraction

b)

London dispersion forces

c)

H-bonds

d)

ionic bonds

16.
Which of the following will take the longest to evaporate?
a)
CH3CH2OH
b)
CH3OH
c)
CH3CH3
17.
Which of the following has the lowest boiling point?
a)
CaCl2
b)
PH3
c)
Cl2
d)
N2
18.

What is the strongest intermolecular force present between HCl molecules?

a)

dipole dipole attractions

b)

London dispersion forces

c)

H-bonds

d)

ionic bonds

19.

Which of the following would best remove Sharpie marker from your wall if this marker is known to be non-water soluble?

a)

salt water

b)

ammonia (nitrogen trihydride)

c)

acetone (finger nail polish remover)

d)

distilled water

20.

Which of the following is NOT a kind of intermolecular force?

a)

hydrogen bonding

b)

covalent bond

c)

London dispersion forces

d)

dipole-dipole attraction

21.
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
22.
In general, substances with stronger intermolecular forces have ___________  boiling points than those with weaker intermolecular forces
a)
higher
b)
lower
23.

Rank these in order of strength:

covalent bond

London dispersion 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