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Intermolecular Forces Quiz

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List the intermolecular forces from weakest to strongest:

ANSWER:  dispersion, Dipole-dipole, hydrogen bonding


What atoms does Hydrogen interact with to create Hydrogen-Bond Intermolecular Forces?

ANSWER:  oxygen, nitrogen, fluorine


What is the relationship between intermolecular forces and boiling point?

ANSWER:  Direct


If you have strong intermolecular forces, you will have _____ vapor pressure

ANSWER:  low


If you have strong intermolecular forces, you will have _______ surface tension,

ANSWER:  high


Which is stronger F₂ or Cl₂ and why?

ANSWER:  Cl₂ is stronger because it has more electrons so there is more possibility of creating an uneven 

shift of electrons.


If BA₂ has a electronegativity difference of .4, CD₂ has a difference of 0, and EF₂ has a difference of .2, list 

the molecular from highest to lowest dispersion forces:

ANSWER:  BA₂, EF₂, CD₂


How do you determine which molecule has higher or lower intermolecular forces?

ANSWER:  First determine what sort of intermolecular forces they have (dipole-dipole, dispersion, or 

hydrogen) then determine the electronegativity difference.


If you have strong intermolecular forces, you will have a _______ melting point.

ANSWER:  high


The transition from a solid to a liquid is called:

ANSWER:  melting


The transition from a liquid to a gas is called:

ANSWER:  evaporation


The transition from a gas to a liquid is called:

ANSWER:  condensation


The transition from a liquid to a solid is called:

ANSWER:  freezing


The transition from a solid to a gas is called:

ANSWER:  sublimation


The transition from gas to solid is called:

ANSWER:  deposition


Dispersion intermolecular forces occur with what molecules?

ANSWER:  All


The weakest intermolecular forces are found within what sort of atom?

ANSWER:  Nonpolar


Induced Dipole occur within what sort of atoms?

ANSWER:  Two identical polar molecules


A high boiling point tells what about the intermolecualr forces.

ANSWER:  They are strong


A low melting point tells what about the intermolecular forces?

ANSWER:  They are weak



1. Which of these is not an intermolecular force?

  • covalent bonding(CORRECT ANSWER)

  • London dispersion forces

  • hydrogen bonding

  • dipole-dipole forces

2. What type of IMF is present in all substances, regardless of polarity?

  • London dispersion forces(CORRECT ANSWER)

  • dipole-dipole forces

  • hydrogen bonding

  • ion-dipole forces

3. Intermolecular forces are the forces

  • between molecules(CORRECT ANSWER)

  • within molecules

4. Which is the strongest intermolecular force below”

  • Hydrogen bonding(CORRECT ANSWER)

  • dipole-dipole

  • Dispersion

  • Ionic

5. Type of intermolecular force present in HF.

  • H-bond(CORRECT ANSWER)

  • dipole dipole

  • dispersion

  • ionic

6. Intermolecular force present in CHF3

  • dipole dipole(CORRECT ANSWER)

  • ionic

  • dispersion

  • H bond

7. Which of the following has the highest boiling point?

  • NH3(CORRECT ANSWER)

  • O2

  • N2

  • H2

8. Is the intermolecular force present in Cl2?

  • dispersion(CORRECT ANSWER)

  • dipole dipole

  • H-bond

  • metallic

9. What intermolecular force present in a sample of pure HCl?

  • dipole-dipole attraction(CORRECT ANSWER)

  • London dispersion forces

  • H-bonds

  • molecule-ion attraction

10. What intermolecular force is present in a sample of pure Cl2?

  • London dispersion forces(CORRECT ANSWER)

  • dipole-dipole attraction

  • H-bonds

  • molecule-ion attraction

11. Intermolecular forces are the forces that exist

  • between molecules(CORRECT ANSWER)

  • within molecules

12. Which of these is not an intermolecular force?

  • covalent bonding(CORRECT ANSWER)

  • London dispersion forces

  • dipole-dipole forces

  • hydrogen bonding

13. Which noble gas has the highest boiling point?

  • Xe(CORRECT ANSWER)

  • Kr

  • Ar

  • He

14. Which of the following has the lowest boiling point?

  • N2(CORRECT ANSWER)

  • PH3

  • Cl2

  • CaCl2

15. Is the intermolecular force present in HCl?

  • dipole dipole(CORRECT ANSWER)

  • H-bond

  • dispersion

  • ionic

16. What type of intermolecular forces increase with increasing molecular mass?

  • London dispersion forces(CORRECT ANSWER)

  • hydrogen bonding

  • dipole-dipole forces

  • ion-dipole forces

17. Which are the strongest intermolecular forces?

  • hydrogen bonds(CORRECT ANSWER)

  • London dispersion forces

  • dipole-dipole forces

  • molecule-ion attractions

18. What are the most important intermolecular forces found between water molecules?

  • hydrogen bonding(CORRECT ANSWER)

  • London dispersion forces

  • dipole-dipole forces

  • ion-dipole forces

19. Hydrogen bonding is a special type of what force?

  • London dispersion forces

  • ion-dipole forces

  • dipole-dipole forces(CORRECT ANSWER)

  • covalent force

20. What type of intermolecular force is present in all substances, regardless of polarity?

  • ion-dipole forces

  • hydrogen bonding

  • London dispersion forces(CORRECT ANSWER)

  • dipole-dipole forces

21. Which of these molecules exhibits hydrogen bonding as its major intermolecular force of attraction when dissolved in water?

  • HCl

  • HBr

  • HF(CORRECT ANSWER)

  • all of these

22. What explains the very high melting and boiling point of water?

  • Dipole-dipole forces between water molecules

  • London dispersion forces between water molecules

  • Molecule-ion attractions between water molecules

  • Hydrogen bonds between water molecules(CORRECT ANSWER)

23. What force explains the ability for water molecules to dissolve ionic compounds?

  • Molecule-ion attraction(CORRECT ANSWER)

  • Dipole-dipole attraction

  • Hydrogen bonds

  • London Dispersion forces

24. Which of these is not an intermolecular force?

  • London dispersion forces

  • dipole-dipole forces

  • ion-dipole forces

  • ionic bonding(CORRECT ANSWER)

25. Which of these typically increases when IMF’s increase?

  • melting point

  • viscosity

  • boiling point

  • all of these (CORRECT ANSWER)