The softening temperature of polystyrene is ____________
A. 10-20 0C
B. 30-50 0C
C. 80-100 0C
D. 120-150 0C
Answer:C
The softening temperature of polystyrene is ____________
A. 10-20 0C B. 30-50 0C C. 80-100 0C D. 120-150 0C
Explanation: The softening temperature of polystyrene is 80-100 0C. Polystyrene is a