JAMB Chemistry 2021 Objective — Question 41

Question 41 of 41 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2021 Objective paper, with the correct answer and a full explanation.

Which of the following statements about thermoplastic material is correct?

A. They do not melt on heating
B. They melt on heating
C. They soften and melt on heatingCorrect
D. They decompose on heating

Explanation

Thermoplastics soften and melt reversibly on heating. Thermosets do not soften — they decompose or char. Examples of thermoplastics: PVC, polyethene, perspex.

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