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Intermolecular Forces and Boiling Point

Total questions: 24

Worksheet time: 2hrs 0mins

Name
Class
Date
1.

Which substance has the weakest intermolecular forces?

a)

Substance A, boiling point of 75 °C

b)

Substance B, boiling point of 105 °C

c)

Substance C, boiling point of 25 °C

d)

Substance d, boiling point of 45 °C

2.

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

a)

higher

b)

lower

3.

________________________ have the strongest intermolecular forces of attraction.

a)

Dipole- Dipole

b)

Dispersion

c)

Hydrogen Bonds

4.
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
5.
What explains the very high melting and boiling point of water
a)
Strong dipole-dipole bonds between water molecules
b)
Strong hydrogen bonds between water molecules
c)
Dispersion forces which are present in all molecules
d)
Asymmetrical shape of the polar bonds.
6.
Does H2S have hydrogen bonding?
a)
yes
b)
no
7.
Does HF have hydrogen bonding?
a)
yes
b)
no
8.
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
9.
Rank these in order of strength:
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
10.
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
11.
Ionic Bonding involves...
a)
The transfer of protons
b)
The transfer of nuetrons 
c)
The transfer of electrons
d)
None Of the above
12.
What forces will the following molecule have?
a)
dispersion
b)
dipole
c)
hydrogen bonding
13.
The force of attraction between nonpolar molecules:
a)
Hydrogen Bonding
b)
Dipole - Dipole Forces
c)
LDF
d)
Ionic Forces
14.
The strength of temporary dipoles:
a)
increases with the size of molecules
b)
is greater than intremolecular forces
c)
is the strongest intermolecular force
15.

Which type of IMF is responsible for the attraction pictured above?

a)

Dipole-Dipole Interaction

b)

Ion-Dipole Interaction

c)

Hydrogen Bonds

d)

Covalent Bond

e)

Ionic Bond

16.

Which type of IMF is responsible for the attraction pictured above?

a)

Dipole-Dipole Interaction

b)

Ion-Dipole Interaction

c)

Hydrogen Bonds

d)

Covalent Bond

e)

Ionic Bond

17.

Intermolecular forces are attractions between ______.

a)

Cations and anions

b)

Atoms within a molecule

c)

Neighboring molecules

d)

Protons and electrons

18.
What is the predominant IMF in the molecule NOF?
a)
LDFs
b)
Dipole dipole
c)
Hydrogen bonding
d)
Polar
19.
Which IMF is the predominant IMF for non-polar molecules?
a)
London Dispersion Forces
b)
Dipole Dipole
c)
Hydrogen Bonding
d)
Both Dipole Dipole and Hydrogen Bonding
20.
What is the predominant IMF for NH3?
a)
London dispersion forces
b)
Dipole dipole
c)
Hydrogen bonding
d)
What is an IMFA?
21.

Which weak intermolecular force is based on the temporary clustering of electrons inside of molecules?

a)

London dispersion forces

b)

dipole-dipole forces

c)

hydrogen bonding

d)

gravitational forces

22.

Which intermolecular force is most notable in noble gases, and non-polar molecules?

a)

London dispersion forces

b)

dipole-dipole forces

c)

hydrogen bonding

d)

gravitational forces

23.

The attractive forces between polar molecules, such as hydrogen bromide, are called ___

a)

London dispersion forces

b)

dipole-dipole forces

c)

bromide bonds

d)

Holmes and Watson forces

24.

A type of dipole-dipole force that occurs in highly polar molecules that contain hydrogen is called ___

a)

super-strong bonding

b)

hydrogen bonding

c)

tripole-tripole bonding

d)

the strong nuclear force