Final answer:
Hydrogen bonding (C) is the strongest intermolecular force out of the options given. Hydrogen bonds are a special type of dipole-dipole interaction that occurs when a hydrogen atom is bonded to a highly electronegative atom (such as nitrogen, oxygen, or fluorine).
Step-by-step explanation:
The strongest intermolecular force out of the options given is hydrogen bonding (C).
Hydrogen bonds are a special type of dipole-dipole interaction that occurs when a hydrogen atom is bonded to a highly electronegative atom (such as nitrogen, oxygen, or fluorine).
This creates a relatively strong attraction between the positively charged hydrogen atom and the partially negative charge of the electronegative atom in a different molecule.