CBSE Class 9 Answered

Coordinate bonds are also called dative bonds or coordinate covalent bonds. They are those covalent bonds in which botrh the electrons to be shared are donated by one of the atoms only. The other atom simply participates in the sharing.

van der Waals bonds are the intermolecular forces of sttraction and repulsion between inteacrting particles. These are of various types: dipole -dipole interaction, dipole - induced dipole interactions.

To differentiate very clearly, coordinate bond is formed in the formation of a molecule or an adduct and van der waals bonds are forces between two already formed species.

van der Waals forces are weaker.