Which of the following states of matter has the strongest forces of attraction between its molecules?

Q. Which of the following states of matter has the strongest forces of attraction between its molecules?

1. Solid
2. Liquid
3. Gas
4. None

Answer: Solid

Intermolecular forces are forces that exist between molecules. Intermolecular forces are much weaker than the intramolecular forces of attraction but are important because they determine the physical properties of molecules like their boiling point, melting point, density, and enthalpies of fusion and vaporization.

If we compare the intermolecular forces in solids, liquids and gases. Solids have the strongest forces, then liquids, then gases.

• Strong attractive forces cause a substance to have a high melting point.
• The solid state of matter has the strongest intermolecular forces of attraction.