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CP - U11 Practice

Total questions: 73

Worksheet time: 2hrs 2mins

Name
Class
Date
1.

Deposition is the phase change in which a gas turns straight into a ____________ without first turning into a liquid.

a)

solid

b)

liquid

c)

gas

d)

plasma

2.

What phase change is occurring when substances like dry ice turn straight from a solid to a gas?

a)

evaporation

b)

deposition

c)

sublimation

d)

freezing

3.

What phase change takes place when a liquid turns into a gas?

a)

melting

b)

condensation

c)

sblimation

d)

evaporation

4.

What phase change takes place when a liquid turns into a solid?

a)

freezing

b)

condensation

c)

melting

d)

deposition

5.

Walking outside on a hot day and having your solid popsicle turn into a liquid is an example of ______________ .

a)

deosition

b)

melting

c)

evaporation

d)

sublimation

6.

When you see drops of liquid water on your cold soda can caused by cooling of the water vapor in the air, ______________ has occurred.

a)

melting

b)

sublimation

c)

condensation

d)

freezing

7.

When you boil water and it turns to steam, you are seeing an example of ________________ occur.

a)

evaporation

b)

condensation

c)

freezing

d)

melting

8.

Which of the following phase changes is a result of removing heat energy?

a)

melting

b)

freezing

c)

evaporation

d)

sublimation

9.

When the temperature of matter increases, the particles...

a)

speed up and move closer

b)

slow down and move closer together

c)

speed up and move farther apart

d)

slow down and move farther apart

10.

Which state of matter has NO definite shape and NO definite volume?

a)

gas

b)

solid

c)

liquid

11.

Which state of matter has a definite shape and a definite volume?

a)

gas

b)

solid

c)

liquid

12.

Which state of matter has NO definite shape, but does have a definite volume?

a)

gas

b)

solid

c)

liquid

13.

All changes in the state of matter of a substance requires...

a)

vibration

b)

permission

c)

energy

d)

water

14.
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.
15.

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

16.

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

a)

higher

b)

lower

17.
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
18.

________________________ have the strongest intermolecular forces of attraction.

a)

Dipole- Dipole

b)

Dispersion

c)

Hydrogen Bonds

19.
Ionic Bonding involves...
a)
The transfer of protons
b)
The transfer of nuetrons 
c)
The transfer of electrons
d)
None Of the above
20.
Intermolecular forces are the forces
a)
within molecules
b)
between molecules
21.

Intramolecular forces are the forces

a)
within molecules
b)
between molecules
22.

Covalent bonds are examples of

a)

intermolecular forces.

b)

intramolecular forces.

23.

Intermolecular forces are weaker than intramolecular forces.

a)

True.

b)

False.

24.

What letter on the diagram represents the triple point?

a)

A

b)

B

c)

C

d)

D

25.

What is the melting point of this substance at 1 ATM of pressure?

a)

40

b)

60

c)

100

d)

110

26.

What is being measured on the x axis?

a)

Pressure

b)

Temperature

c)

Energy

d)

Mass

27.

What is being measured on the y axis?

a)

Pressure

b)

Temperature

c)

Energy

d)

Mass

28.

What state of matter is EASIEST to compress?

a)

Solid

b)

Liquid

c)

Gas

29.

Adding heat to a substance...

a)

can change its state of matter

b)

speeds up the molecules

c)

adds kinetic energy

d)

all of these are true

30.

Removing heat from a substance...

a)

weakens the connection between molecules

b)

slows down the molecules

c)

makes molecules less organised

d)

all of these are true

31.

The point at which a liquid has enough energy to become a gas is called its...

a)

boiling point

b)

melting point

32.

In which region(s) does temperature increase? (a)  

Choose from the below words
Region C only
Regions B and D
Regions A, C, and E
Regions A and B
33.

At which letter is the substance changing its state of matter?

a)

A only

b)

A, C, and E

c)

D and E

d)

B and D

34.

Are the particles moving faster or slower as time goes on?

a)

Faster

b)

Slower

35.

What state/phase is the object likely from points A to B?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

36.

What is happening to the particles in the substance between points D and E?

a)

Melting

b)

Freezing

c)

Vaporizing

d)

Sublimating

37.

Is the substance gaining or losing energy?

a)

Gaining

b)

Losing

38.

Where on the graph are phase changes taking place? Click all that apply.

a)

1

b)

2

c)

3

d)

4

e)

5

39.
Which line segment demonstrates vaporization occurring?
a)
B-C
b)
C-D
c)
D-E
d)
E-F
40.

Which substance would have the weakest intermolecular forces of attraction?

a)

CH4

b)

NaCl

c)

H2O

d)

MgF2

41.

Intermolecular forces for: NH3

a)

Dispersion Force

b)

Dipole dipole

c)

Hydrogen bonding

42.

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

a)

higher

b)

lower

43.

Intermolecular forces for: CO2

a)

Dispersion Force

b)

Dipole dipole

c)

Hydrogen bonding

44.
Which of the following factors plays an important role in the identification of specific intermolecular forces in a molecule?
a)
bond type
b)
density
c)
solubility
d)
molecular polarity
45.

Intermolecular Forces are the forces that exist

a)

Between two or more molecules

b)

Within a single molecule

c)

Only in molecules containing carbon

d)

In all molecules

46.

Examples of an intermolecular force include

a)

london disperson

b)

hydrogen bonding

c)

dipole dipole

d)

all of the above

47.

For hydrogen bonding to occur, a molecule must have a hydrogen bonded to

a)

carbon

b)

another hydrogen

c)

Fluorine, Chlorine or Oxygen

d)

Fluorine, Nitrogen or Oxygen

48.

Type of intermolecular force present in I2, Br2, and Cl2. (all nonpolar)

a)

dipole dipole

b)

H-bond

c)

London dispersion

d)

metallic

49.

Does NH3 or PH3 have a higher boiling point?

(Hint: NH3 has hydrogen bonds and PH3 does not)

a)

NH3 because it has the strongest IMF's

b)

PH3 because it has the strongest IMF's

50.

In general, substances with stronger intermolecular forces have ________ boiling points than those with weaker forces

a)

Higher

b)

Lower

c)

The same

51.

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

52.

The intermolecular force present in all matter is

a)

Hydrogen Bonding

b)

Ionic Bonding

c)

Dipole-Dipole

d)

London or Dispersion

53.

The strongest IMF is

a)

London/Dispersion

b)

Dipole-Dipole

c)

Hydrogen Bonding

54.

The weakest IMF is

a)

Dipole-Dipole

b)

Dispersion

c)

Hydrogen Bonding

55.
What information do we look for on the periodic table if we  want to examine intermolecular forces?
a)
atomic mass
b)
atomic number
c)
electronegativity
d)
ionization 
56.
Type of intermolecular force present in HF.
a)
dipole dipole
b)
dispersion
c)
H-bond
d)
ionic
57.

Which of the following has the highest boiling point? (diatomic molecules are nonpolar)

a)
H2
b)
NH3
c)
N2
d)
O2
58.

Which of the following properties is not affected by intermolecular forces?

a)

Color

b)

Melting point

c)

Surface tension

d)

Viscosity

59.

Ionic bonds and covalent bonds are ____ than intermolecular forces

a)

Stronger

b)

Weaker

60.

A liquid evaporates very quickly. What type of intermolecular force(s) would you expect to be present?

a)

London dispersion, dipole-dipole, and hydrogen bonding

b)

London dispersion and dipole-dipole

c)

Only London dispersion forces

61.

Nonpolar molecule samples all contain

(Check all that apply)

a)

Hydrogen Bonding

b)

Dipole Dipole

c)

London Dispersion Forces

d)

Ionic Bonds

62.

List the following from strongest to weakest.

a)

ion-dipole bonds

b)

Hydrogen bonds

c)

dipole-dipole interactions

d)

London Dispersion Forces / Van Der Waals Forces

1)
2)
3)
4)
63.

Where in this diagram are the intermolecular forces strongest?

A
B
C
64.

Water is liquid at room temperature, but carbon dioxide is not. Why is that?

a)

CO2 is straight, while H2O is bent.

b)

H2O has weaker intermolecular forces due to dipole-dipole interactions.

c)

H2O has stronger intermolecular forces due to hydrogen bonding.

d)

CO2 has less mass than H2O.

65.

Which of the following characteristics describe the following substance? Select all that apply.

a)

London dispersion forces (aka Van Der Waals forces)

b)

dipole-dipole interactions

c)

Hydrogen bonds

d)

polar

66.

Which of the following is an intramolecular force?

a)

hydrogen bonding

b)

polar covalent bonding

c)

London dispersion forces

d)

dipole-dipole interaction

67.
Does CH4 have hydrogen bonding?
a)
yes
b)
no
68.
Does NH3 have hydrogen bonding?
a)
yes
b)
no
69.

Intramolecular forces are the forces

a)

within molecules

b)

between molecules

70.

What kind of force is the arrow pointing to?

a)

Intramolecular Force

b)

Intermolecular Force

71.

What kind of force is the arrow pointing to?

a)

Intramolecular force

b)

Intermolecular force

72.

Intermolecular Forces include :​ ​ ​ ​ ​ ​ ​ ​​ (a)   (b)   ​ (c)  

Choose from the below words
Hydrogen Bonds
Dipole-Dipole Interactions
Dispersion Forces
Covalent Bonds
Ionic Bonds
Metallic Bonds
73.

Intermolecular forces for: CO2

a)

Dispersion Force

b)

Dipole dipole

c)

Hydrogen bonding

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