Question

The intermolecular forces of attraction are maximum in ___.
A. Solid
B. Liquid
C. Gas
D. None of these

Answer 1

Hint- In order to deal with this question first we have to know about the intermolecular force, then according to its property we will find the answer. We will look for the different factors that determine the intermolecular force of attraction and then compare for the given options.

Complete answer:
Intermolecular force: Intermolecular forces are the forces of attraction or repulsion which act between neighboring particles (atoms, molecules, or ions ). These forces are weak compared to the intramolecular forces, such as the covalent or ionic bonds between atoms in a molecule.
The intermolecular/interatomic force of attraction is maximum in solids. Due to this, the molecules of solids are closely packed.
The order of force of intermolecular force of attraction is in the following order:
Solid > Liquid > Gas
Hence, the intermolecular forces of attraction are maximum in solids.

So, the correct answer is option A.

Note- It is only due to the maximum intermolecular forces of attraction in the solids that the shape and size of solids are perfect and they don’t change also the reason behind the rigidity of solids higher than liquids and gases is maximum intermolecular force of attraction. And so the kinetic energy of a particle is lowest for solids and is maximum for gases.