Question

Which one of the following polymer has strongest intermolecular force of attraction?

• A. Polystyrene
• B. Neoprene
• C. Terylene
• D. Polythene

Answer 1

The Correct Option is C

Terylene (also known as PET) is a polyester that has strong intermolecular forces due to the ester functional group, which can form hydrogen bonds. These forces make the polymer more rigid and have higher intermolecular attraction compared to the other options, like polystyrene, neoprene, and polythene.
Polystyrene, neoprene, and polythene have weaker intermolecular forces, with polythene being the weakest due to its non-polar nature.

The correct option is (C): Terylene

Answer 2

The strength of intermolecular forces in polymers depends on the types of monomers, their structure, and the extent of crystallinity. Among the given options:

Polystyrene: This polymer has weak intermolecular forces because it is non-polar and has no significant hydrogen bonding.
Neoprene: Neoprene (a type of synthetic rubber) has some dipole-dipole interactions, but the forces are still weaker compared to other polymers.
Terylene (Polyethylene terephthalate): Terylene has strong intermolecular forces due to the presence of ester groups and its highly crystalline structure, which leads to stronger Van der Waals forces and dipole-dipole interactions.
Polyethylene: This polymer has relatively weak intermolecular forces because it is a non-polar polymer with only London dispersion forces.

Thus, Terylene has the strongest intermolecular forces of attraction due to its structure and intermolecular interactions. Hence, the correct answer is (C).