7/22/2019 IGCSE Tests for Cations and Anions

1/1

Aluminium (Al3+)

Ammonium (NH4+)

Calcium (Ca2+)

Carbonate (CO32-)

Chloride (Cl-) (in solution)

Copper (Cu2+)

Iodide (I-) (in solution)

Iron(II) (Fe2+)

Iron(III) (Fe3+) Red

Nitrate (NO3-) (in solution)

Sulfate (SO42-)

Zinc (Zn2+)

1. Effect of aqueous sodium hydroxide

White ppt., soluble in excess giving a colourless solution

EFFECT OF AQ AMMONIA:

White ppt., insoluble in excess

2. Effect of aqueous sodium hydroxide:

Ammonia produced on warming

3. Effect of aqueous sodium hydroxide:

White ppt., insoluble in excess

EFFECT OF AQ AMMONIA:

No ppt. or very slight white ppt.

4. Add dilute acid Effervescence, carbon dioxide produced

5. Acidify with dilute nitric acid, then add aqueous silver nitrate White ppt.

6. Effect of aqueous sodium hydroxide:

Light blue ppt., insoluble in excess

EFFECT OF AQ AMMONIA:

Light blue ppt., soluble in excess, giving a dark blue solution

7. Acidify with dilute nitric acid, then add aqueous silver nitrate Yellow ppt.

8. Effect of aqueous sodium hydroxide:

Green ppt., insoluble in excess

EFFECT OF AQ AMMONIA:

Green ppt., insoluble in excess

9. Effect of aqueous sodium hydroxide:

Red-brown ppt., insoluble in excess

EFFECT OF AQ AMMONIA:

Red-brown ppt., insoluble in excess

10. Add aqueous sodium hydroxide, then aluminium foil; warm carefully Ammonia produced

11. Acidify, then add aqueous barium nitrate White ppt.

12. Effect of aqueous sodium hydroxide:

White ppt., soluble in excess, giving a colourless solution

EFFECT OF AQ AMMONIA:

White ppt., soluble in excess, giving a colourless solution

IGCSE tests for Cations and Anions!Study online at quizlet.com/_96a03