Given the polymers (i)Nylon 66; (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)
Ans. c
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