Intermolecular Forces and Boiling Points

Which of the following is the weakest type of intermolecular force?

• Hydrogen bonding

• Dipole-dipole interactions

• London dispersion forces

• Ionic bonding

What type of intermolecular force is primarily responsible for the high boiling point of water?

• London dispersion forces

• Dipole-dipole interactions

• Hydrogen bonding

• Ionic bonding

Which of the following molecules would exhibit dipole-dipole interactions?

Tags

NGSS.HS-PS1-1

London dispersion forces are present in which of the following substances?

• Only polar molecules

• Only nonpolar molecules

• Both polar and nonpolar molecules

• Only ionic compounds

Which of the following statements is true regarding the boiling points of substances with different intermolecular forces?

• Substances with hydrogen bonds generally have lower boiling points than those with London dispersion forces.

• Substances with dipole-dipole interactions have higher boiling points than those with hydrogen bonds.

• Substances with London dispersion forces generally have the lowest boiling points.

• Substances with ionic bonds have lower boiling points than those with hydrogen bonds.

Tags

NGSS.HS-PS1-3

Which of the following compounds is most likely to exhibit hydrogen bonding?

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

• The presence of hydrogen atoms

• The size and shape of the molecule

• The polarity of the molecule

• The presence of ionic bonds

Which of the following pairs of substances would you expect to have the greatest difference in boiling points due to intermolecular forces?

Tags

NGSS.HS-PS1-3

Which of the following is true about dipole-dipole interactions?

• They occur between nonpolar molecules.

• They are stronger than hydrogen bonds.

• They occur between polar molecules.

• They are the same as London dispersion forces.

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

• It decreases the boiling point.

• It has no effect on the boiling point.

• It increases the boiling point.

• It makes the boiling point unpredictable.