Question

Which of the following are responsible for origination of Van Der Waals force?
This question has multiple correct answers.
$A.$ Instantaneous dipole-Induced interaction.
$B.$ Dipole induced dipole interaction and ion induced dipole interaction.
$C.$ Dipole-dipole interaction and ion induced dipole interaction.
$D.$ Small size of molecules.

Answer 1

Hint: Vander Waals forces include attraction and repulsion between atoms, molecules, and surfaces as well as intermolecular forces. It is a weak force that is different from ionic and covalent bonding.

Complete step by step answer:
In the given question there are multiple correct answers let discuss them one by one. As we discussed in the hint Vander Waals forces are the result of electrostatic attraction between temporary dipoles caused by movement of electrons in atoms and molecules.
All the factors, instantaneous dipole-induced interaction, Dipole induced dipole interaction and ion induced dipole interaction, Dipole-dipole interaction and ion induced dipole interaction are responsible for origination of Vander Waals forces except for the small size of the molecules.

Thus, the correct options are $A,B\& C$ .

Additional information:
Instantaneous dipole-induced interaction: A dipole-induced attraction is a weak attraction that results when a polar molecule induces a dipole in an atom or in a nonpolar molecule by distributing the arrangement of electrons in the non-polar species.
Ion- dipole and ion-induced dipole forces are similar to dipole-dipole and dipole-induced dipole interaction but involve ion, instead of polar and nonpolar molecules. Ion-dipole and ion-induced forces are stronger than dipole-dipole interaction because the any ion is much greater than the charge of a dipole moment. Ion-dipole bonding is stronger than hydrogen bonding.

Note:
Vander Waal forces are the additive and cannot be saturated. They have no directional characteristic. They all are short-range forces and hence only interaction between nearest need to be considered of all the particles. They are weaker than the normal covalent ionic bond.