Explanation

(d)
Nylon has amide linkage capable of forming intermolecular H-bonding as:
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Due to H-bonding,nylon has strong intermolecular attraction. Cellulose is a polyhydroxy compound,also capable of forming strong intermolecular H-bonding. Polyvinyl chloride is a polar polymer due to carbon chlorine bond and it possessstrong dipole-dipole attraction. Natural rubber is poly-isoprene,a hydrocarbon,possess weak van der Waals’ attraction.
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