Exploring Intermolecular Forces: Types and Interactions

What are intermolecular forces responsible for?

• Causing molecules to repel each other

• Causing molecules to stick together

• Causing molecules to break apart

• Causing molecules to change color

Which of the following is the weakest intermolecular force?

• London dispersion forces

• Hydrogen bonding

• Dipole-dipole forces

• Ion-dipole forces

Why are London dispersion forces more noticeable in nonpolar molecules?

• Because they have a high boiling point

• Because they have stronger bonds

• Because they have no other attractive forces at work

• Because they are always in a liquid state

What happens to the electrons in a molecule during London dispersion forces?

• They briefly move to one side of the molecule

• They form a solid

• They disappear

• They stay in one place

Which type of intermolecular force occurs between a polar molecule and an ion?

• Ion-dipole forces

• Dipole-dipole forces

• London dispersion forces

• Hydrogen bonding

What is an example of a polar molecule involved in ion-dipole forces?

• Methane

• Octane

• Water

• Sulfur dioxide

Which intermolecular force is stronger than London dispersion forces and occurs between two polar molecules?

• Covalent bonding

• Hydrogen bonding

• Ion-dipole forces

• Dipole-dipole forces

What is the electronegativity difference between hydrogen and bromine in hydrogen bromide (HBr)?

• 1.2

• 1.0

• 0.5

• 0.7

Which of the following is a stronger version of a dipole-dipole force?

• London dispersion forces

• Van der Waals forces

• Ion-dipole forces

• Hydrogen bonding

Why is water a liquid at room temperature despite its low molar mass?

• Because of London dispersion forces

• Because of ion-dipole forces

• Because of hydrogen bonding

• Because of its high molar mass