MCQOPTIONS
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MCQOPTIONS
| 1. |
The softening temperature of polystyrene is ____________ |
| A. | 10-20 <sup>0</sup>C |
| B. | 30-50 <sup>0</sup>C |
| C. | 80-100 <sup>0</sup>C |
| D. | 120-150 <sup>0</sup>C |
| Answer» D. 120-150 <sup>0</sup>C | |