Molecules are attracted to one another by Van der Waals forces. How do Van der Waals forces compare with ionic and covalent bonds?
a. Van der Waals forces are stronger than ionic and covalent bonds.
b. Van der Waals forces are weaker than ionic and covalent bonds.
c. Van der Waals forces are stronger than ionic bonds, but weaker than covalent bonds.
d. Van der Waals forces are stronger than covalent bonds, but weaker than ionic bonds.