Nanoparticles of silver kill bacteria. Nanoparticles of silver are added to some sports socks to stop the socks smelling.
Suggest why adding nanoparticles of silver stops the socks smelling.
Some of the nanoparticles of silver are washed out of the socks and enter rivers.
Give one possible risk of nanoparticles of silver entering rivers.
Explain why the long term effects of nanoparticles of silver on health are not yet known.
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.