Certain plastics items are called unbreakable.What is this material?Write its formula.

Explain.

polythene -(-Ch2-)-

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Thermosetting plastic are called unbreakable as once moulded they cannot be reprocessed.they are crosslinked.
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IT IS THERMOSETTING PLASTICS WHICH IS CALLED UNBREAKABLE
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Plastic is polymer.
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Because plastic is made up of many units and polymer it mens poly = many ', mer= units it is the reson.
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Ghanishtha Pahwa , the right ans. Is thermosetting plastics because one moulded they cannot become soft and so are called unbreakable.
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The unbreakable plastic are made from PVC ;polythene;polypropylene
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Melamine
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