Fine particles in the air are also called PM2.5.
Which range of diameters describes fine particles?
10 000 nm10\ 000\ \text{nm}10 000 nm to 25 000 nm25\ 000\ \text{nm}25 000 nm
2500 nm2500\ \text{nm}2500 nm to 10 000 nm10\ 000\ \text{nm}10 000 nm
100 nm100\ \text{nm}100 nm to 2500 nm2500\ \text{nm}2500 nm
1 nm1\ \text{nm}1 nm to 100 nm100\ \text{nm}100 nm
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.