O-LevelChemistryAcids, Bases & Salts5070/11 · Oct/Nov 2011 · Q321 Mark
A sample of tap water gave a white precipitate with acidified silver nitrate. What does this show about the tap water?
AIt contained chloride.
BIt contained harmful microbes.
CIt contained nitrates.
DIt had not been filtered.
✓ Correct answer
A: It contained chloride.
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