Displacement reactions can be used to demonstrate the trend in the reactivity in Group 17.

CHEMISTRY · Multi-part · GCSE · Chemistry · Atomic Structure and the Periodic Table · Atomic Structure and the Periodic Table

Problem

Displacement reactions can be used to demonstrate the trend in the reactivity in Group 17. (1) a Design a simple experiment that could be performed in a school laboratory to show the trends for chlorine, bromine and iodine. Include observations and equations. (2) b** These reactions are described as *redox reactions*. What does this term mean? Use the reaction of bromine with potassium iodide to explain your answer.

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