Give reason. PVC is called a thermoplastics.
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Plastics can be categorized as either thermosetting or thermoplastic. Polyvinyl chloride (PVC) is considered a thermoplastic. ... In comparison, thermosetting polymers form irreversible chemical bonds as they are cured and therefore they break down when heated and will not re-form as the temperature is cooled.
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Explanation:
because when PVC headed it becomes soft and can be remoulded into desire shape.
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