13. Displacement reactions of Halogens
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9 Terms
What is displacement?
A more reactive element displaces a less reactive element from a solution of a salt
What happens with Cl reacts with Cl?
No reaction
What happens when Cl reacts with Br?
Turns orange / yellow
What happens when Cl reacts with I?
Turns red / brown
What reactions give no reaction?
Br being added to Cl or Br
What happens when Br is added to I?
Turns red / brown
What does a redox reaction mean?
One species gains electrons (reduced) while another species loses electrons (oxidised)
What can fluorine do?
Displace all halogens
Why can fluorine displace all halogens?
It is the most electronegative element -> Pulls electrons towards itself + has small radius so more effective nuclear charge
Note 
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