DP Chemistry (last assessment 2024)
Question 18M.3.sl.TZ2.b.ii
| Date | May 2018 | Marks available | [Maximum mark: 2] | Reference code | 18M.3.sl.TZ2.b.ii |
| Level | sl | Paper | 3 | Time zone | TZ2 |
| Command term | Compare | Question number | b.ii | Adapted from | N/A |
b.ii.
[Maximum mark: 2]
18M.3.sl.TZ2.b.ii
Propene can polymerize to form polypropene.
Propene monomer: 
Compare two ways in which recycling differs from reusing plastics.
[2]
Markscheme
Any two of:
Recycling: shredded/melted/reformed AND Reuse: used in its current form
recycling is more energy intensive «than reusing»
recycling degrades the quality of plastic but reusing «typically» does not
recycling breaks down original product to form a new product whereas reuse extends product life
[2 marks]
