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Tests for Ions and Gases (Flame tests (Li+ - Red flame, K+ - Lilac flame,…
Tests for Ions and Gases
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Using Sodium Hydroxide
NH4+
Add aqueous Sodium Hydroxide, warm, test for ammonia using damp red litmus paper goes blue
Cu2+
Add aqueous Sodium Hydroxide, blue precipitate
Fe2+
Add aqueous Sodium Hydroxide, green precipitate
Fe3+
Add aqueous Sodium Hydroxide, brown precipitate
Negative ions
Add dilute Nitric Acid , then add aqueous Silver Nitrate
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Add Hydrochloric Acid, then add aqueous Barium Chloride
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