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5 Terms
1
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Carbonate (CO₃²⁻)
Add dilute HCl
Effervescence (CO₂ gas), turns limewater milky
2
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Sulfate (SO₄²⁻)
Add dilute HCl, then BaCl₂
White precipitate (BaSO₄)
3
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Sulfite (SO₃²⁻)
Add dilute HCl
Produces sulphur dioxide (SO₂) gas, turns acidified potassium manganate(VII) from purple to colourless
4
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Halides (Cl⁻, Br⁻, I⁻)
Add dilute Nitric acid (HNO₃), then silver nitrate (AgNO₃)
White precipitate (Cl⁻) Chloride
Cream precipitate (Br⁻),
Yellow precipitate (I⁻)
5
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Nitrate (NO₃⁻)
Add NaOH + aluminium foil, warm → Produces NH₃ gas, turns damp red litmus paper blue
Note 
Flashcards (21)