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Chemistry · Class 11
School halide test: acidify with dilute HNO₃, add AgNO₃. Precipitates: AgCl white, AgBr cream, AgI yellow. Solubility in ammonia helps confirm: AgCl dissolves in dilute NH₃, AgBr in concentrated NH₃, AgI remains insoluble. These are precipitate colours — not elemental halogen colours.
