Chemistry 5070/11 — October/November 2017
Cambridge O-Level · Multiple Choice · answer key with instant marking and worked solutions
Topics Organic Chemistry · Atoms, Elements and Compounds · Chemical Reactions · Stoichiometry · Chemistry of the Environment · States of Matter · +6 more
Tap an option under each question to check it — your score builds as you go.
A purple pill is placed in a beaker of water. The beaker is left for several hours.
The diagram shows the appearance of the water when the pill is added and several hours later.
Which statement explains why this change occurs?
Options
A Diffusion occurs because the pill is coloured.
B Diffusion occurs faster at higher temperatures.
C Diffusion occurs from an area of high concentration to one of lower concentration.
D Gases diffuse faster than liquids.
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