Chemistry · Chemical Bonding
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Which type of forces exist between iodine molecules?
- A
Dipole-dipole forces
- B
Dipole-induced dipole forces
- C
Instantaneous dipole-induced dipole forces
- D
Non-polar forces
The correct type of forces that exist between iodine molecules (I₂) is C. Instantaneous dipole-induced dipole forces (London dispersion forces). Iodine molecules are nonpolar and therefore primarily interact through London dispersion forces.
Dipole-dipole forces exist between polar molecules. These forces occur when the positive end of one polar molecule attracts the negative end of another polar molecule.
Dipole-induced dipole forces occur when a polar molecule induces a temporary dipole (partial positive and partial negative charges) in a neighboring nonpolar molecule.
Instantaneous dipole-induced dipole forces, also known as London dispersion forces or van der Waals forces, are the weakest intermolecular forces. They occur between all molecules, whether polar or nonpolar, due to the temporary fluctuations in electron distribution.
Non-polar forces are not a specific type of intermolecular force. Instead, they refer to the forces that exist between nonpolar molecules, which can include London dispersion forces.
Tagged under Chemistry · Chemical Bonding · 2023