Question

Which of the following does not becomes soft on heating and is rigid and tough

Answer 1

Answer:

thermosets

Explanation:

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Answer 2

thermosets

EXPLAINATION :

A plastic which once set,does not become soft on heating and cannot be moulded a second time,is called thermosetting plastic. Once set in a given shape and solidified,a thermosetting plastic cannot be re-softened or re-moulded. They are known as thermosets. They are hard and rigid.

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