Discussion
Which of the following is not a synthetic polymer ?
Answer: D
The one that is not a synthetic polymer is resins.
Resins in the ordinary sense are natural products: viscous secretions of plants, especially conifers, such as rosin and lac. They occur in nature rather than being made in a factory.
Polythene (from ethene), nylon-6,6 (from hexamethylenediamine and adipic acid) and Buna-S (styrene-butadiene rubber) are all man-made polymers. Synthetic resins also exist, but the plain term 'resins' is the natural material, which is why it is the odd one out.
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