A material is needed for the handle of a saucepan. The handle must stay rigid at 200 ∘C^\circ\mathrm{C}∘C, must be a poor conductor of heat and must not shatter if the pan is dropped.
| Material | Type of material | Softening temperature (∘C^\circ\mathrm{C}∘C) |
|---|---|---|
| P | polymer | 250 |
| Q | polymer | 110 |
| R | ceramic | over 1500 |
| S | metal alloy | over 1000 |
Which material is most suitable?
P
Q
R
S
36 exam-style questions on Edexcel GCSE Chemistry 10.5 Bulk and surface properties of matter including nanoparticles, covering 10.5.1 Nanoparticles: size, uses and risks and 10.5.2 Comparing and selecting materials. Each one has a worked solution and a mark scheme showing where the marks go.