Given the polymers (i) Nylon - 6, 6; (ii) Buna - $$S;$$ (iii) Polythene. Arrange these in increasing order of their inter-molecular forces ( lower to higher )
A.
(i) > (ii) > (iii)
B.
(ii) > (iii) > (i)
C.
(ii) < (iii) < (i)
D.
(iii) < (i) < (ii)
Answer :
(ii) < (iii) < (i)
Solution :
Nylon – 6, 6 is a fibre with hydrogen bonds thus have strongest intermolecular forces. Buna - $$S$$ is a elastomer whereas polythene is thermoplastic. the intermolecular forces of attraction in thermoplastics is intermediate between elastomer and fibres. Therefore forces in elastomers are weakest.
Releted MCQ Question on Organic Chemistry >> Polymers
Releted Question 1
Among cellulose, poly ( vinyl chloride ), nylon and natural rubber, the polymer in which the intermolecular force of attraction is weakest is