LT#10 IMF Practice

Intermolecular forces are the forces

• within molecules

• between molecules

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

• Higher

• Lower

• The same

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

What is an ion?

• A Charged Atom

• A Large Atom

• A Small Atom

• A Cute Atom

Which sample would exhibit hydrogen bonding?

• H₂S

• CH₄

• NH₃

• HI

Which substance would we predict to have the lowest boiling point?

• CH₄

• NaCl

• H₂O

• MgF₂

Which of these has the strongest London forces?

• F₂

• Br₂

• I₂

• Cl₂

Rank these in order of strength:
covalent bond
London forces
hydrogen bond
dipole-dipole attraction

• dipole-dipole>covalent bond>hydrogen bond>London
• London>dipole-diple>hydrogen bond>covalent bond
• covalent bond>hydrogen bond>dipole-dipole>London
• hydrogen bond>dipole-dipole>London>covalent bond

Which noble gas has the highest boiling point?

• Xe
• Kr
• Ar
• He

In a water molecule, the bond between the hydrogen and the oxygen is best described as

• a hydrogen bond

• an intermolecular bond

• an ionic bond

• a covalent bond