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Intermolecular Forces Post Lab Quiz

Total questions: 15

Worksheet time: 23mins

Name
Class
Date
1.

Which of these is the weakest intermolecular force?

a)

Dipole-dipole

b)

Hydrogen bonding

c)

London dispersion forces

2.

Which intermolecular force do all molecules have?

a)

Dipole-dipole

b)

Hydrogen bonding

c)

London dispersion forces

3.

Which intermolecular force requires hydrogen and one of the following: nitrogen, oxygen, fluorine?

a)

Dipole-dipole

b)

Hydrogen bonding

c)

London dispersion forces

4.

Which intermolecular force is characterized by partially oppositely charged ions?

a)

Dipole-dipole

b)

Hydrogen bonding

c)

London dispersion forces

5.

Which type of intermolecular force does this molecular drawing best represent?

a)

dipole-dipole

b)

hydrogen bonding

c)

London dispersion forces

6.

Which of these molecules exhibits dipole-dipole forces? (You may choose multiple answers)

a)

a

b)

b

c)

c

d)

d

7.

Which of these molecules exhibits hydrogen bonding forces? (You may choose multiple answers)

a)

a

b)

b

c)

c

d)

d

8.

Which of these molecules exhibits Van Der Waal (London dispersion) forces? (You may choose multiple answers)

a)

a

b)

b

c)

c

d)

d

9.

One of these molecules is polar. Predict which molecule would have Dipole-dipole forces.

a)

a

b)

b

10.
Which of the following statements correctly explains why hydrogen bonding is such a strong intermolecular force?
a)
There is an attraction between a small, weakly electronegative hydrogen atom and a large, strongly electronegative atom of fluorine, nitrogen, or oxygen
b)
There is an attraction between a small, highly electronegative hydrogen atom and a large, highly electronegative fluorine atom
c)
There is an attraction between the hydrogen and oxygen atoms, only
d)
There is an attraction between the hydrogen and nitrogen atoms, only
11.
HCl and F2 both have a molecular mass of approximately 36 g/mol. Based on IMF, which will have a lower boiling point?
a)
HCl
b)
F2
12.

Intermolecular forces for: CO2

a)

Dispersion Force

b)

Dipole dipole

c)

Hydrogen bonding

13.
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
14.

A weak IMF will result in a

a)

high melting point

b)

high viscosity

c)

high surface tension

d)

low surface tension

15.

Two substances were tested in the evaporation lab. Substance A had a temperature difference of 20 degrees where substance B had a temperature difference of 12 degrees. Which substance likely has the strongest IMF?

a)

Substance A

b)

Substance B