| Hint | Answer | % Correct |
|---|---|---|
| Ammonium | No PPT | 100%
|
| Cation Tests - Dropwise NaOH (aq)Type 1 | 1 | 67%
|
| Sodium | No PPT | 67%
|
| Potassium | No PPT | 67%
|
| Zinc | White PPT | 67%
|
| Aluminium | White PPT | 67%
|
| Lead (II) | White PPT | 67%
|
| Calcium | White PPT | 67%
|
| Copper Compounds ColourType 5 | 5 | 33%
|
| Anion TestsType 6 Note: Type ion name in full | 6 | 33%
|
| Gas Tests and Miscellaneous TestsType 7 | 7 | 33%
|
| Place moist red litmus paper at the mouth of the test tube, turns blue | Ammonia | 33%
|
| CuO | Black | 33%
|
| Cu(NO3)2 | Blue | 33%
|
| CuSO4 | Blue | 33%
|
| Add dilute acid | Carbonate | 33%
|
| Bubble the gas into limewater | Carbon Dioxide | 33%
|
| Acidify with dilute nitric acid, add silver nitrate -- White PPT | Chloride | 33%
|
| Place moist blue litmus paper at the mouth of the test tube, turns red initially then is bleached | Chloride | 33%
|
| CuCO3 | Green | 33%
|
| Iron (II) | Green PPT | 33%
|
| Place a lighted splint at the mouth of the test tube | Hydrogen | 33%
|
| Acidify with dilute nitric acid, add silver nitrate -- Yellow PPT | Iodine | 33%
|
| Cu(OH)2 | Light Blue | 33%
|
| Copper (II) | Light Blue PPT | 33%
|
| Add aqueous sodium hydroxide, add aluminium foil, and then warm gently | Nitrate | 33%
|
| Place a glowing splint at the mouth of the test tube | Oxygen | 33%
|
| Acidify with dilute nitric acid, add barium nitrate | Sulfate | 33%
|
| Add potassium manganate (VII) in dropwise to filter paper, then purple potassium manganate (VII) being decolourised is observed | Sulfur Dioxide | 33%
|
| Add anhydrous copper (II) sulfate OR add cobalt (II) chloride paper | Water | 33%
|
| Cation Tests - Excess NaOH (aq) Type 2 | 2 | 0%
|
| Cation Tests - Dropwise NH3 (aq)Type 3 | 3 | 0%
|
| Cation Tests -- Excess NH3 (aq)Type 4 | 4 | 0%
|
| Zinc | Colourless Solution | 0%
|
| Aluminium | Colourless Solution | 0%
|
| Lead (II) | Colourless Solution | 0%
|
| Zinc | Colourless Solution | 0%
|
| Copper (II) | Dark Blue PPT | 0%
|
| Iron (II) | Green PPT | 0%
|
| Iron (II) | Green PPT | 0%
|
| Iron (II) | Green PPT | 0%
|
| Copper (II) | Light Blue PPT | 0%
|
| Copper (II) | Light Blue PPT | 0%
|
| Calcium | No PPT | 0%
|
| Calcium | No PPT | 0%
|
| Iron (III) | Red-Brown PPT | 0%
|
| Iron (III) | Red-Brown PPT | 0%
|
| Iron (III) | Red-Brown PPT | 0%
|
| Iron (III) | Red-Brown PPT | 0%
|
| Calcium | White PPT | 0%
|
| Zinc | White PPT | 0%
|
| Aluminium | White PPT | 0%
|
| Lead (II) | White PPT | 0%
|
| Aluminium | White PPT | 0%
|
| Lead (II) | White PPT | 0%
|