Which of the following polymers can have strong intermolecular forces ?
(a) Nylon
(b) Polystyrene
(c) Rubber
(d) Polysters
Answers: (a), and (d).
Nylon and polyesters have strong intermolecular forces like Hydrogen-bonding. Nylon and polyester are thread forming .fibres which possess high tensile strength and high melting point.