Intermolecular Forces and Polarity of HI

The video tutorial explores the intermolecular forces present in hydrogen iodide (HI). It begins by identifying that HI is a covalent compound with no ions. The video then examines the polarity of HI, noting the electronegativity difference between hydrogen and iodine, which results in a dipole. The tutorial concludes by explaining that HI exhibits both dipole-dipole and London dispersion forces.

What type of compound is hydrogen iodide (HI)?

• Metallic compound

• Ionic compound

• Covalent compound

• Network solid

What is the electronegativity difference between hydrogen and iodine in HI?

• 0.46

• 1.46

• 2.20

• 2.66

Is hydrogen iodide (HI) a polar molecule?

• No, it is nonpolar

• It depends on the pressure

• Yes, it is polar

• It depends on the temperature

Which of the following is NOT a factor in determining the polarity of HI?

• Bond length

• Molecular shape

• Presence of ions

• Electronegativity difference

To which element is hydrogen bonded in HI?

• Oxygen

• Iodine

• Fluorine

• Nitrogen

What type of intermolecular forces are present in HI?

• Hydrogen bonding

• Both dipole-dipole and London dispersion forces

• Only dipole-dipole forces

• Only London dispersion forces

What is the role of London dispersion forces in HI?

• They are stronger than dipole-dipole forces

• They are the only forces present

• They are present alongside dipole-dipole forces

• They are absent in HI