Reactions of the halogens

4 marks · Normal

The table below shows the appearance of three halogens at room temperature. Some data is missing. Complete the table.

Write your answers for the missing physical states and colour.

Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.

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Must show: Chlorine: gas; Bromine: liquid; Iodine: solid; Iodine: grey

Also accept: grey; gray

Common mistakes: purple for iodine (should be grey at room temperature); wrongly giving bromine as a gas

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Marking points

B1 · 1 mark · Chlorine state: gas

B2 · 1 mark · Bromine state: liquid

B3 · 1 mark · Iodine state: solid

B4 · 1 mark · Iodine colour: grey (accept gray)

Worked solution