Uses Of Nanoparticles (chemistry Only) (GCSE Chemistry)

Which use of silver nanoparticles relies on their strong chemical activity at surfaces?

Nanoparticles have a much larger surface area to volume ratio than the same mass of bulk material. How does this change most directly affect chemical reactivity?

A metal oxide nanoparticle used for pollution removal works by adsorbing molecules on its surface. Which factor will most increase adsorption capacity?

Which nanoparticle property would most directly affect the diffusion of the particle through a gel for drug delivery?

Which statement correctly links intermolecular forces and the use of nanoparticles in coatings to make water-repellent textiles?

What is a key chemical risk associated with silver nanoparticles used in textiles and coatings?

Why are nanoparticle drug carriers (e.g., liposomes, polymer nanoparticles) chemically useful for targeted medicine?

In designing a nanoparticle sensor that changes colour when binding a molecule, which chemical concept is being exploited?

Which property of nanoparticle catalysts helps reduce the amount of catalyst metal needed in industrial reactions?

Which chemical property explains why some nanoparticles are added to lubricants to reduce wear?

How does reducing particle size to the nanoscale typically affect melting point of a material?