IMF Practice

Which of the following forces are found between two NONPOLAR molecules?

• London force

• Dipole-dipole

• Hydrogen bond

What type of intermolecular force requires BOTH molecules to have an H-N, H-O, or H-F connection within them?

• Hydrogen bond

• London

• Dipole-dipole

What type of intermolecular force occurs between two POLAR molecules?

• London

• Dipole-dipole

• Hydrogen

What intermolecular force is present between two molecules of HCl?

• Dipole-Dipole

• London

• Hydrogen bonds

• Ionic

What type of intermolecular force is present between two molecules of HF?

• Dipole-Dipole

• London

• Hydrogen bonds

• ionic

Rank these in order of strength (from strongest to weakest):

London forces

hydrogen bond

dipole-dipole attraction

• dipole-dipole>hydrogen bond>London

• London>dipole-dipole>hydrogen bond

• hydrogen bond>dipole-dipole>London

• London>hydrogen bond>dipole-dipole

Which of these has the strongest London forces?

• F₂
• Br₂
• Cl₂
• I₂

In general, substances with stronger intermolecular forces have ________ boiling points than those with weaker forces

• Higher
• Lower
• Forces and boiling point are not related

Which of the following is the correct Lewis structure for the compound PBr₃?

• structure A
• structure B
• structure C
• structure D

In the correct Lewis structure for CH_4, how many unshared electron pairs surround the carbon?

• 2
• 8
• 0
• 4