JEE Main · 2010 · 11 Apr 2010 · Offline · Polymers

The polymer containing strong intermolecular forces e.g. hydrogen bonding, is

(A)teflon
(B)nylon 6,6✓ Correct
(C)polystyrene
(D)natural rubber

Answer: (B)

Solution

Hydrogen bonding between chains needs

N - H

O - H

groups. Nylon 6,6 is a polyamide, and the

N - H

of one chain's amide group hydrogen-bonds to the

C = O

of a neighbouring chain, locking the chains together and giving the fibre its strength. Teflon has only

C - F

bonds with weak dispersion forces, while polystyrene and natural rubber are hydrocarbons with no hydrogen-bonding groups. The polymer with strong hydrogen bonding is nylon 6,6.

JEE Main · 2010 · 11 Apr 2010 · Offline · Single correct option

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