INTERMOLECULAR FORCES

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

Rank the following intermolecular forces from weakest to strongest: London forces, dipole-dipole attraction, hydrogen bond, ionic bond.

Back

Ionic bond > hydrogen bond > dipole-dipole attraction > London forces.

Front

Can CH4 participate in hydrogen bonding with itself?

Back

No, CH4 cannot participate in hydrogen bonding because it lacks a highly electronegative atom (like N, O, or F) bonded to hydrogen.

Front

What is a hydrogen bond?

Back

A hydrogen bond is a type of dipole-dipole attraction that occurs between a hydrogen atom bonded to a highly electronegative atom (like N, O, or F) and another electronegative atom.

Front

Can H2O participate in hydrogen bonding?

Back

Yes, H2O can participate in hydrogen bonding due to the presence of highly electronegative oxygen atoms.

Front

What is the basis of a metallic bond?

Back

The basis of a metallic bond is the attraction between positive metal ions and free-floating electrons.

Front

Which intermolecular force is the second strongest after hydrogen bonding?

Back

Dipole-dipole attraction is the second strongest intermolecular force after hydrogen bonding.

Front

What are London dispersion forces?

Back

London dispersion forces are weak intermolecular forces that arise from temporary dipoles in molecules due to the movement of electrons.

Front

How do dipole-dipole attractions occur?

Back

Dipole-dipole attractions occur between polar molecules where the positive end of one molecule is attracted to the negative end of another.

Front

What is the significance of intermolecular forces in liquids?

Back

Intermolecular forces determine the boiling and melting points of liquids, affecting their physical state and behavior.