Halogen Displacement Reactions

Question 1

What are halogen displacement reactions and how do they work?

Answer 1

The halogen displacement reactions are redox , so the halogens gain electrons - reduction and the halide ions lose electrons - oxidisation

Question 2

Can you Give an example of halogen displacement?

Answer 2

Chlorine is more reactive then bromine
If : chlorine water + potassium bromide -> potassium chloride

This is because the chlorine displaces the bromide , the salt is potassium chloride , the bromide ions are oxidised to bromine , this turns the solution orange

Question 3

What is are equations for your example?

Answer 3

Chlorine + potassium bromide -> bromine + potassium chloride

Chlorine + bromine ions -> bromine + chloride ions

Question 4

What happens when you add potassium chloride solution to

Chlorine water
Bromine water
Iodine water:

Answer 4

No reaction
No reaction
No reaction

Question 5

What happens if you add potassium bromide solution to

Chlorine water
bromine water
Iodine water:

Answer 5

Orange solution
No reaction
No reaction

Question 6

What happens when you add potassium iodide solution to

Chlorine water
Bromine water
Iodine water:

Answer 6

Brown solution
Brown solution
No reaction