Question 1

Which type of force exists between molecules?

Accepted Answer

Intermolecular forces

Answer

Intramolecular forces

Answer

Ionic bonds

Answer

Covalent bonds

Question 2

Which type of force holds atoms within a single molecule together?

Accepted Answer

Intramolecular forces

Answer

Dipole–dipole interaction

Answer

Intermolecular forces

Answer

Hydrogen bonding

Question 3

Which of the following molecules exhibits hydrogen bonding?

Accepted Answer

NH₃

Answer

HCl

Answer

CO₂

Answer

CH₄

Question 4

What are the three main types of intermolecular forces?

Accepted Answer

London dispersion, dipole–dipole, hydrogen bonding

Answer

Polar, nonpolar, metallic

Answer

Strong, weak, gravitational

Answer

Ionic, covalent, metallic

Question 5

Arrange the following intermolecular forces from weakest to strongest: Hydrogen bond, London dispersion, Dipole–dipole

Accepted Answer

London dispersion → Dipole–dipole → Hydrogen bond

Answer

Hydrogen bond → Dipole–dipole → London dispersion

Answer

Dipole–dipole → London dispersion → Hydrogen bond

Answer

London dispersion → Hydrogen bond → Dipole–dipole

Question 6

Which molecule below would likely have the highest boiling point due to its strong intermolecular forces?

Accepted Answer

NH₃

Answer

CH₄

Answer

H₂

Answer

CO₂

Question 7

What is the main cause of London dispersion forces?

Accepted Answer

Temporary fluctuations in electron density

Answer

Ionic attraction

Answer

Permanent dipoles

Answer

Hydrogen atoms bonded to electronegative atoms

Question 8

In HCl, the attraction between molecules is classified as what type of force?

Accepted Answer

Dipole–dipole

Answer

Ionic bonding

Answer

London dispersion

Answer

Hydrogen bonding

Question 9

Compare intramolecular and intermolecular forces in terms of strength. Which is stronger?

Accepted Answer

Intramolecular forces

Answer

Depends on the molecule

Answer

Both are equal

Answer

Intermolecular forces

Question 10

Why does NH₃ exhibit hydrogen bonding, while CH₄ does not?

Accepted Answer

CH₄ hydrogens are not bonded to a highly electronegative atom

Answer

NH₃ is nonpolar

Answer

CH₄ has no carbon

Answer

CH₄ has no hydrogens

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