Question

which type of force is the weakest?
a. van der waals forces
b. hydrogen bonds
c. ionic bonds
d. metallic bonds

Explanation:

Van der Waals forces are the weakest among intermolecular forces. Hydrogen bonds are stronger than Van der Waals forces. Ionic and metallic bonds are types of chemical bonds which are much stronger than intermolecular forces like Van der Waals.

Answer:

A. Van der Waals forces