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Why are rubber called elastomers?...

Why are rubber called elastomers?

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When force is applied, rubbers are stretched and these regain original state after the force is removed. Therefore these are called elastomers.
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MODERN PUBLICATION-POLYMERS-NCERT (EXemplar Problems) (Short Answer Type Questions)
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  5. Identify the type of polymer given in the following figure.

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  8. Can enzyme be called a polymer?

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