Multiple Choice
Which type of intermolecular force is most significant in a molecule of H2O due to its polarity?
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13. Liquids, Solids & Intermolecular Forces
Intermolecular Forces
Multiple Choice
Which of the following intermolecular forces are present in a sample of HClO (hypochlorous acid)?
A
Ionic bonding and London dispersion forces
B
Hydrogen bonding, dipole-dipole interactions, and London dispersion forces
C
Only dipole-dipole interactions
D
Only London dispersion forces
Verified step by step guidance1
Identify the types of intermolecular forces: Ionic bonding occurs between ions, hydrogen bonding occurs when hydrogen is directly bonded to highly electronegative atoms like N, O, or F, dipole-dipole interactions occur between polar molecules, and London dispersion forces are present in all molecules due to temporary dipoles.
Analyze the molecular structure of HClO (hypochlorous acid): It contains hydrogen (H) bonded to oxygen (O), which is a highly electronegative atom, chlorine (Cl), and oxygen (O).
Determine if hydrogen bonding is possible: Since hydrogen is bonded to oxygen, hydrogen bonding can occur because of the strong polarity and the presence of lone pairs on oxygen.
Check for dipole-dipole interactions: HClO is a polar molecule due to differences in electronegativity between H, O, and Cl, so dipole-dipole interactions are present.
Recognize that London dispersion forces are always present in all molecules, including HClO, due to instantaneous dipoles formed by electron movement.
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