Question

question 10 of 10
what do van der waals forces do?

a. they stimulate hydrogen-bond formation between molecules.

b. they remove electrons from atomic orbitals, creating dipoles.

c. they stick polar molecules together.

d. they form temporary, weak dipole attractions between molecules.

Explanation:

• Option A: Van der Waals forces are not related to stimulating hydrogen - bond formation. Hydrogen bonds are a specific type of intermolecular force, and Van der Waals forces are a separate category of weak intermolecular attractions.
• Option B: Van der Waals forces do not involve removing electrons from atomic orbitals. Electron removal is related to processes like ionization, not Van der Waals forces.
• Option C: Van der Waals forces act on both polar and non - polar molecules. They are not limited to just sticking polar molecules together.
• Option D: Van der Waals forces (including London dispersion forces and dipole - dipole interactions) are temporary and weak attractive forces between molecules. This option correctly describes their nature.

Answer:

D. They form temporary, weak dipole attractions between molecules.