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Question

Which one of the following polymer is prepared by condensation polymerization?

A
Polystyrene
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B
Nylon - 6,6
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C
Teflon
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D
Rubber
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Solution

The correct option is A Nylon - 6,6
Condensation polymers are formed through a condensation reaction, where molecules join together, losing small molecules as byproducts. For e.g., Nylon - 6,6 is formed by condensation polymerization of adipic acid and hexamethylenediamine.
Whereas Polystyrene, Teflon and Rubber all are formed by chain-growth polymerization of monomers styrene, tetrafluoroethylene and isoprene respectively.
Here, an unsaturated monomer molecule adds to the active site of a growing polymeric chain one at a time.

Option B is correct.

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