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28 Cards in this Set
- Front
- Back
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Aluminium (Al 3+) |
+ aq. NaOH -> white ppt, soluble in excess -> colourless solution |
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Ammonium (NH4 +) |
+ aq NaOH -> ammonia (NH3) produced on warming |
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Calcium (Ca 2+) |
+ aq NaOH -> white ppt, insol. In excess |
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Chromium III (Cr 3+) |
+ aq NaOH -> green ppt. Soluble in excess |
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Copper II (Cu 2+) |
Aq NaOH -> light blue ppt, insol. In excess |
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Iron II (Fe 2+) |
+ aq NaOH -> green ppt, insol in excess |
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Iron III (Fe 3+) |
+ aq NaOH -> red-brown ppt. Insol. In excess |
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Zinc (Zn 2+) |
+ aq NaOH -> white ppt. Soluble in excess, giving a colourless solution. Same in aq ammonia |
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Ammonia (NH3) |
Red litmus paper -> blue |
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Carbon Dioxide (CO2) |
Turns limewater -> milky coloured |
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Chlorine (Cl2) |
Bleaches damp litmus paper |
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Hydrogen (H2) |
‘Pops’ with a lighted splint |
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Oxygen (O2) |
Relights a glowing splint |
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Sulfur Dioxide (SO2) |
Turns acidified potassium manganate VII (K2MnO4 7+) Purple -> colourless |
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Lithium (Li +) |
Turns red under flame |
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Sodium (Na +) |
Turns yellow under flame |
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Potassium (K +) |
Turns lilac under flame |
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Copper II (Cu 2+) |
Turns blue-green under flame |
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Carbonate (CO3 2-) |
Add dilute acid -> effervescence (gives off bubbles), CO2 is produced |
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Chloride (Cl -) |
+ dilute nitric acid (HNO3), + aq. Silver nitrate (AgNO3) -> white ppt. |
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Bromide (Br-) |
+ dilute Nitric acid (HNO3), + aq. Silver nitrate (AgNO3) -> Cream ppt. |
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Iodide (I -) |
+ dilute nitric acid (HNO3), + aq. Silver nitrate (AgNO3) -> yellow ppt. |
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Nitrate (NO3 2-) |
+ aq. Sodium hydroxide (NaOH), + Aluminium foil; warm carefully -> white ppt. |
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Sulfite (SO3 2-)Magnesi |
+ dilute hydrochloric acid (HCl), warm , test for Sulfur dioxide (SO2) (potassium manganate VII from purple to colourless) |
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Magnesium (Mg 2+) |
+ NaOH -> White ppt. + excess NaOH -> ppt. Remains |
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Lead (Pb 2+) |
+ NaOH -> white ppt. + excess NaOH -> ppt dissolves. NEW SAMPLE. + 2 drops NH3 -> ppt remains. + H2SO4 -> solid forms |
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Barium (Ba 2+) |
+NaOH -> white ppt. + excess NaOH -> Ppt remains |
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Silver (Ag +) |
+ NaOH -> Brown ppt. NEW SAMPLE. 2 drops NH3, then excess -> ppt dissolves. Confirms |
