An industrial spraying process produces batches of liquid droplets that remain suspended in the air. The table shows the range of droplet diameters in each batch.
| Batch | Minimum diameter in m\text{m}m | Maximum diameter in m\text{m}m |
|---|---|---|
| A | 8.0 × 10-8 | 2.0 × 10-6 |
| B | 1.2 × 10-7 | 2.4 × 10-6 |
| C | 4.0 × 10-7 | 3.2 × 10-6 |
Which batch contains only fine particles (PM2.5\text{PM}_{2.5}PM2.5)?
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104 exam-style questions on AQA GCSE Chemistry 2.4 Bulk and surface properties of matter including nanoparticles, covering 2.4.1 Sizes of particles and their properties and 2.4.2 Uses of nanoparticles. Each one has a worked solution and a mark scheme showing where the marks go.