APCE Intermolecular Forces & Properties 1

Question 1

Which type of intermolecular force is responsible for the attraction between polar molecules?

Accepted Answer

Dipole-dipole interactions.

Answer

London dispersion forces.

Answer

Hydrogen bonding.

Answer

Ionic bonds.

Question 2

What is the strongest type of intermolecular force in water?

Accepted Answer

Hydrogen bonding.

Answer

Dipole-dipole interactions.

Answer

London dispersion forces.

Answer

Ionic bonding.

Question 3

What is the effect of increasing intermolecular forces on the boiling point of a substance?

Accepted Answer

The boiling point increases.

Answer

The boiling point decreases.

Answer

The boiling point remains the same.

Answer

The boiling point becomes unpredictable.

Question 4

Which of the following substances would have the highest boiling point?

Accepted Answer

H₂O (Water).

Answer

H₂ (Hydrogen gas).

Answer

N₂ (Nitrogen gas).

Answer

Cl₂ (Chlorine gas).

Question 5

What is the primary factor that affects the strength of London dispersion forces?

Accepted Answer

The size of the molecule and the number of electrons.

Answer

The polarity of the molecule.

Answer

The type of bond the molecule has.

Answer

The temperature of the substance.

Question 6

What type of intermolecular force exists between nonpolar molecules?

Accepted Answer

London dispersion forces.

Answer

Dipole-dipole interactions.

Answer

Hydrogen bonding.

Answer

Ionic bonding.

Question 7

What effect does hydrogen bonding have on the boiling point of a substance?

Accepted Answer

It increases the boiling point.

Answer

It lowers the boiling point.

Answer

It has no effect on the boiling point.

Answer

It increases the freezing point.

Question 8

Which of the following is an example of a molecule that exhibits hydrogen bonding?

Accepted Answer

H₂O (Water).

Answer

N₂ (Nitrogen gas).

Answer

CO₂ (Carbon dioxide).

Answer

CH₄ (Methane).

Question 9

Which type of intermolecular force is most responsible for the high boiling point of water?

Accepted Answer

Hydrogen bonding.

Answer

London dispersion forces.

Answer

Dipole-dipole interactions.

Answer

Ionic bonds.