CH-1611
Tests for cations
Chemistry · Secondary 4 · Medium · Tests for cations
Four colourless solutions W, X, Y and Z are tested.
• Adding dilute nitric acid then aqueous silver nitrate gives a white precipitate with W.
• Adding aqueous sodium hydroxide and warming gives a gas that turns damp red litmus paper blue with W.
What is W?
• Adding dilute nitric acid then aqueous silver nitrate gives a white precipitate with W.
• Adding aqueous sodium hydroxide and warming gives a gas that turns damp red litmus paper blue with W.
What is W?
- Ammonium chloride
- Ammonium nitrate
- Sodium chloride
- Sodium nitrate
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