Uses Of Nanoparticles (chemistry Only) (GCSE Chemistry)

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

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?

A researcher designs gold nanoparticles coated with thiol groups to bind to a protein target. Which chemical bond is primarily responsible for attaching the thiol to the gold surface?

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?

Which statement best describes the environmental fate of some polymer nanoparticles (microplastics) used in paints and coatings?

In a catalyst application, why might nanoparticles be chemically poisoned more quickly than bulk catalysts?

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

Why are some metal oxide nanoparticles (e.g., iron oxides) used for magnetic separation in water treatment?

In sunscreen lotions, zinc oxide nanoparticles are used instead of bulk zinc oxide mainly because: