Intermolecular forces Practice

Front

What are intermolecular forces?

Back

Intermolecular forces are the forces of attraction or repulsion between neighboring particles (molecules, atoms, or ions). They play a crucial role in determining the physical properties of substances.

Front

What is the strongest type of intermolecular force?

Back

Hydrogen bonding is the strongest type of intermolecular force, occurring when a hydrogen atom bonded to N, O, or F is attracted to another electronegative atom.

Front

What is dipole-dipole attraction?

Back

Dipole-dipole attraction is an intermolecular force that occurs between polar molecules, where the positive end of one molecule is attracted to the negative end of another.

Front

What are London dispersion forces?

Back

London dispersion forces are weak intermolecular forces that arise from temporary dipoles in molecules, present in all molecules but are the only forces in nonpolar molecules.

Front

What is hydrogen bonding?

Back

Hydrogen bonding is a strong type of dipole-dipole attraction that occurs specifically when hydrogen is bonded to highly electronegative atoms like nitrogen, oxygen, or fluorine.

Front

Which molecules can participate in hydrogen bonding?

Back

Molecules that have hydrogen bonded to N, O, or F can participate in hydrogen bonding, such as NH3 (ammonia) and H2O (water).

Front

What is the role of acetone in removing non-water soluble substances?

Back

Acetone is a polar solvent that can dissolve non-polar substances, making it effective for removing substances like Sharpie marker from surfaces.

Front

What is the significance of molecular polarity in intermolecular forces?

Back

Molecular polarity determines the type and strength of intermolecular forces; polar molecules exhibit stronger dipole-dipole interactions and hydrogen bonds compared to nonpolar molecules.

Front

What is the difference between ionic bonds and intermolecular forces?

Back

Ionic bonds are strong attractions between charged ions, while intermolecular forces are weaker attractions between neutral molecules.

Front

What is an example of a molecule that only exhibits London dispersion forces?

Back

I2 (iodine) is an example of a molecule that only exhibits London dispersion forces, as it is nonpolar.