Intermolecular Forces Review

What explains the very high melting and boiling point of water

• Strong dipole-dipole bonds between water molecules
• Strong hydrogen bonds between water molecules
• Dispersion forces which are present in all molecules
• Asymmetrical shape of the polar bonds.

Hydrogen bonding occurs when hydrogen is bonded to N, O, or F.  Which of the following has hydrogen bonding?

• CBr₄
• NO₂
• H₂S
• NH₃

Which of these has ONLY London dispersion forces?

• I₂

• NH₃

• OCl₂

• SH₂

London forces are stronger in heavier atoms or molecules, and weaker in lighter atoms or molecules.  Which of these has the strongest London forces?

• F₂
• Br₂
• I₂
• Cl₂

Tags

NGSS.HS-PS1-3

What IMF will this molecule exhibit?

• Dispersion

• Dipole

• Hydrogen bond

• Ionic bonding

H₂S has what kind of intermolecular force?

• dipole dipole
• dispersion
• H-bond
• ionic

Intermolecular forces are the forces

• within molecules
• between molecules

Which of the following has the highest boiling point?

• H₂
• NH₃
• N₂
• O₂

Tags

NGSS.HS-PS1-3

Which of the following has the lowest boiling point?

• CaCl₂
• PH₃
• Cl₂
• N₂

Which of the following will take the longest to evaporate?

• CH₃CH₂OH

• CH₃OH

• CH₃CH₃

• CH₄

Tags

NGSS.HS-PS1-3