Intermolecular Forces and Properties

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

Type of intermolecular force present in I₂, Br₂, and Cl₂.

• dipole dipole

• H-bond

• London dispersion

• metallic

Which substance would have the weakest intermolecular forces of attraction?

• CH₄

• NaCl

• H₂O

• MgF₂

Intermolecular forces for: NH₃

• London dispersion Forces

• Dipole dipole

• Hydrogen bonding

Intermolecular forces for: CO₂

• London dispersion Forces

• Dipole dipole

• Hydrogen bonding

Water has an unusually high boiling point for a molecular compound because it has

• hydrogen bonding

• ion-ion attractions

• a high density

• a large gram formula mass

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

• higher

• lower

Which molecule: Br₂, HCl, H₂S, or NH₃, will most likely have London dispersion forces as the MOST important IMF considered when determining melting/boiling points?

• Br₂, it only has dispersion forces when interacting

• HCl, it can participate in dipole-dipole interactions and also dispersion forces

• H₂S, it can participate in dipole-dipole interactions and also dispersion forces

• NH₃, it can participate in hydrogen bonding and also dispersion forces

Which noble gas should have the highest boiling point? (Hint: Think about how size affects IMFs)

• He

• Ne

• Kr

• Xe

Which of the following will NOT have hydrogen bonding?

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