Topic 3 - GROUP 7 DISPLACEMENT REACTIONS Flashcards
1
Q
What is a displacement reaction?
A
when more reactive halogen displaces a less reactive halogen to produce an AQUEOUS SOLUTION OF ITS HALIDE.
2
Q
What happens to reactivity of group 7 non-metals?
A
reactivity of group 7 non-metals increases as you go UP the group.
3
Q
Why does the solution turn orange when chlorine solution is added to colourless potassium solution?
A
Because bromine is formed
4
Q
What happens when Chlorine + Potassium Bromide solution?
A
Chlorine + Potassium Bromide Solution —> Potassium Chloride solution + Bromide
Chlorine above bromine in Group 7 so is more reactive + displaces bromine from aqueous solution of metal bromide.
5
Q
SYMBOL EQUATION OF Chlorine + Potassium Bromide solution?
A
Cl2 + 2KBr —> 2KCl + Br2
