3C - Halide tests

    1)           State and explain the reactivity of the halogens as you go down Group 7:  [4]

    2)          This question is about the tests of the potassium halides.

                    a)  Complete the table below putting in the colours of the halides when silver nitrate is added [6]

                    b)  Write equations for the 3 precipitate reactions   [3]