Ion Tests - Chemistry GCSE

What flame colour does Barium produce?

green

What flame colour does Potassium produce?

lilac

What flame colour does Sodium produce?

yellow

What flame colour does Calcium produce?

brick red

What flame colour does Lithium produce?

crimson

what colour precipitate do chloride ions give?

white

what colour precipitate do iodide ions give?

yellow

what colour precipitate do bromide ions give?

cream

what colour precipitate do copper ions give?

blue

what colour precipitate do Fe2+ ions give?

green

what colour precipitate do Fe3+ ions give?

reddish brown

what is the test for sulphates?

acidified barium chloride

What is the test for Halides?

nitric acid and silver nitrate

what ion fizzes if you add acid?

carbonate

what colour precipitate does aluminium form?

white

what colour precipitate does calcium form?

white

what colour precipitate does magnesium form?

white

how do you differentiate between aluminium, magnesium and calcium precipitates?

add excess sodium hydroxide, then do a flame test

what flame colour does magnesium form?

colourless