A catalyst made of nanoparticles works better than the same mass of the catalyst made of fine particles.
Which feature of the nanoparticles explains why the catalyst works better?
They have a much larger total surface area
They have a much larger number of particles
They have a much smaller mass for each particle
They have a much smaller total volume of solid
40 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.