Intermolecular Forces

Dipole-Dipole forces are stronger than _______ and weaker than _________ interactions.

• london dispersion, ion-dipole

• hydrogen bonding, london dispersion

• ion-dipole, london dispersion

Hydrogen bonding is a special case of __________.

• london dispersion

• ion-dipole

• dipole-dipole

Which of the following has the lowest boiling point?

• PH₃

• H₂O

• SiH₄

• NH₃

Does HCl have hydrogen bonding?

• yes
• no

All molecules have London forces between them, but dipole-dipole and hydrogen bonding are so much stronger that when they are present we can ignore London forces.  Which of these has ONLY London forces?

• I₂
• NH₃
• OCl₂
• SH₂

The weaker the intermolecular forces of a substance the _____________ the boiling point

• higher

• lower

Intermolecular forces for: CO₂

• Dispersion Force

• Dipole dipole

• Hydrogen bonding

Which of the following factors plays an important role in the identification of specific intermolecular forces in a molecule?

• bond type
• density
• solubility
• molecular polarity

Intermolecular Forces are the forces that exist

• Between two or more molecules

• Within a single molecule

• Only in molecules containing carbon

• In all molecules

Which substance has the weakest intermolecular forces?

• Substance A, boiling point of 75 °C

• Substance B, boiling point of 105 °C

• Substance C, boiling point of 25 °C

• Substance d, boiling point of 45 °C