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2.4 Bulk and surface properties of matter including nanoparticles

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Question 12
F

A deodorant contains nanoparticles of a substance that kills bacteria. Only a small mass of the substance is needed.

Which property of the nanoparticles explains why only a small mass is needed?

[1]
A

The nanoparticles have a high surface area to volume ratio

B

The nanoparticles have a low surface area to volume ratio

C

The nanoparticles react with the bacteria very slowly

D

The nanoparticles spread out evenly through the liquid

Markscheme

2.4 Bulk and surface properties of matter including nanoparticles Questions

  1. GCSE
  2. /Chemistry
  3. /2.4 Bulk and surface properties of matter including nanoparticles

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.

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