Halogens

Question 1

Colour of Chlorine, Bromine and Iodine (aq)

Answer 1

Colourless

Yellow

Brown

Question 2

Colour of KCl, KBr, KI (aq)

Answer 2

All colourless

Question 3

Reactivity pattern of Halogens

Answer 3

The higher up the periodic table, the more reactive it is

Question 4

Reaction between KCl and Br2

Answer 4

No change (Stays Yellow)

Question 5

Reaction between KI and Br2

Answer 5

Bromine displaces Iodine:

Yellow —-> Brown