Multiple Choice
For which of the following substances is hydrogen bonding not a significant intermolecular force?
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13. Liquids, Solids & Intermolecular Forces
Intermolecular Forces
Multiple Choice
Which of the following best explains the cause of dipole-dipole interactions between molecules?
A
The attraction between the positive end of one polar molecule and the negative end of another polar molecule
B
The attraction between ions and polar molecules
C
The sharing of electrons between atoms in a molecule
D
The instantaneous formation of temporary dipoles in nonpolar molecules
Verified step by step guidance1
Understand that dipole-dipole interactions occur between polar molecules, which have permanent dipoles due to uneven distribution of electron density.
Recall that a polar molecule has a partial positive charge on one end and a partial negative charge on the other end, creating a permanent dipole moment.
Recognize that dipole-dipole interactions arise because the positive end of one polar molecule is attracted to the negative end of another polar molecule.
Differentiate dipole-dipole interactions from other types of intermolecular forces, such as ion-dipole interactions (between ions and polar molecules), covalent bonding (sharing electrons within molecules), and London dispersion forces (temporary dipoles in nonpolar molecules).
Conclude that the best explanation for dipole-dipole interactions is the attraction between the positive end of one polar molecule and the negative end of another polar molecule.
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