Chemical test | Sodium chloride solution | Sodium nitrate solution |
Addition of silver nitrate solution | It reacts with silver nitrate to form a white precipitate of silver chloride, which dissolves in excess of ammonium hydroxide. |
It does not react with silver nitrate solution. |
Chemical test | Sodium sulphate solution | Sodium chloride solution |
Addition of barium chloride solution | It reacts with barium chloride to form a white precipitate of barium sulphate, which is insoluble in mineral acids. |
It does not react with barium chloride solution. |
Chemical test | Calcium nitrate solution | Zinc nitrate solution |
Addition of sodium hydroxide solution | It reacts with sodium hydroxide solution to form a white precipitate of calcium hydroxide, which on further addition of excess sodium hydroxide is sparingly soluble. |
It reacts with sodium hydroxide solution to form white gelatinous precipitate of zinc hydroxide, which on further addition of excess sodium hydroxide reacts to form soluble, complex sodium zincate. |