displacement reaction of halogens (oil rig)

Question 1

a more reactive halogen will…

Answer 1

displace a less reactive halogen from a halide salt

eg) when aq solutions of halogens are added to potassium halide solutions

Question 2

cl2

Answer 2

br- (aq) = orange solution

i- (aq) = brown solution

Question 3

br2

Answer 3

cl- = no reaction 
i- = brown solution

Question 4

I2

Answer 4

cl- = no reaction

br - = no reaction