C4.1.3 Halogen Displacement Reactions

Question 1

What is a displacement reaction

Answer 1

A reaction in which a more reactive element takes the place of a less reactive element in a compound.

Question 2

How would you show reactivity trend for halogens

Answer 2

1. Measure out halide salt solution
2. Add a few drops of halogen solution
3. If there is a colour change, a reaction has taken place
4. Repeat with different halide salt solutions and halogen solutions.