Presentation is loading. Please wait.

Presentation is loading. Please wait.

Displacement of halogens

Similar presentations


Presentation on theme: "Displacement of halogens"— Presentation transcript:

1 Displacement of halogens
If a halogen is added to a solution of a compound containing a less reactive halogen, it will react with the compound and form a new one. This is called displacement. sodium chloride sodium fluoride chlorine fluorine + F2 (aq) 2NaCl (aq) 2NaF (aq) Cl2 (aq) A more reactive halogen will always displace a less reactive halide from its compounds in solution.

2 Halogen Displacement

3 Halogen Displacement Q) Write an equation to show the reactions which are taking place in tubes 1,2 and 4 KBr added KI added KI added Bromine water KCl added Chlorine water Iodine water KBr added KCl added Colour change Yes Yes No Yes No No

4 Displacement Equations
Potassium Bromide and Chlorine: 2KBr + Cl2  2KCl + Br2 Potassium Iodide and Chlorine: 2KI + Cl2  2KCl + I2 Potassium Iodide and Bromine: 2KI + Br2  2KBr + I2

5 Displacement reactions: summary
The reactions between solutions of halogens and metal halides (salts) can be summarised in a table: 2KCl + I2 2KBr + I2 halogen chlorine bromine iodine salt (aq) potassium chloride potassium iodide potassium bromide 2KCl + Br2 no reaction


Download ppt "Displacement of halogens"

Similar presentations


Ads by Google