Testing for chlorides (Cl^-), bromides (Br^-) and iodides (I^-)
1 mark · NormalA solution is acidified with dilute nitric acid and then tested with silver nitrate. Which observation indicates the presence of bromide ions?
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Correct option: A cream precipitate forms.
Common mistakes: Choosing white precipitate (chloride); Choosing yellow precipitate (iodide)
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Marking points
A1 · 1 mark · Option: 'A cream precipitate forms.'
Worked solution
A cream precipitate indicates the presence of bromide ions when tested with acidified silver nitrate.