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 hydrogen bonding?

Back

Hydrogen bonding is a strong type of dipole-dipole attraction that occurs between molecules when a hydrogen atom is bonded to a highly electronegative atom (like O, N, or F) and is attracted to another electronegative atom.

Front

What is the strongest type of intermolecular force?

Back

Hydrogen bonds are generally considered the strongest type of intermolecular force, followed by dipole-dipole interactions and London dispersion forces.

Front

What are London dispersion forces?

Back

London dispersion forces are weak intermolecular forces that arise from temporary shifts in electron density in atoms or molecules, leading to temporary dipoles.

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

How do intermolecular forces affect boiling and melting points?

Back

Stronger intermolecular forces result in higher boiling and melting points because more energy is required to overcome these forces.

Front

Which intermolecular force is present in all substances?

Back

London dispersion forces are present in all substances, regardless of whether they are polar or nonpolar.

Front

What is the difference between intermolecular forces and intramolecular forces?

Back

Intermolecular forces are forces between molecules, while intramolecular forces are forces within a molecule that hold the atoms together (like covalent bonds).

Front

What type of intermolecular force does H2S exhibit?

Back

H2S exhibits dipole-dipole attractions due to its polar nature.

Front

What is a covalent bond?

Back

A covalent bond is a type of chemical bond where two atoms share one or more pairs of electrons. It is not an intermolecular force.