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Displacement reactions can be used to determine the relative reactivity of the halogen elements.
This microscale experiment shows the reactions between chlorine, bromine and iodine ions with potassium chloride, potassium bromide and potassium iodide respectively. You will see a colour change where a reaction has occurred. The reactivity trend of these three halogens can be deduced from the reactions that take place.
Chapter titles
00:10 Introduction
01:25 Set up for microscale experiment
04:59 Illustration of displacement reaction
05:54 Redox reactions
06:34 Results table
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