Back to quiz

6. Iron 3+ and dilute OH

  • white ppt
  • brown ppt
  • brown gelatenous ppt
  • yellow solution

7. Cobolt 2+ and dilute ammonia

  • yellow
  • blue ppt
  • green blue ppt
  • orange

8. Iron 2+ and water

  • pale green solution
  • orange solution
  • blue solution
  • green solution

9. Aluminium 3+ and dilute OH

  • white ppt
  • colourless
  • yellow
  • green ppt

10. Cobolt 2+ and conc ammonia

  • green gelatenous ppt
  • pale yellow / brown solution
  • brown solution yellow ppt
  • blue solution green ppt

11. Copper 2+ and dilute OH

  • pale blue ppt
  • green
  • blue gelatenous ppt
  • orange

12. Iron 3+ and dilute ammonia

  • brown gelatenous ppt
  • yellow solution
  • blue solution
  • red solution

13. Aluminium 3+ and conc ammonia

  • green
  • white ppt
  • colourless
  • blue

14. Chromium 3+ and conc OH

  • yellow
  • green
  • blue
  • blue ppt

15. Chromium 3+ and conc ammonia

  • purple
  • red
  • pink
  • blue

16. Copper 2+ and conc ammonia

  • deep blue solution
  • pale yellow
  • green blue ppt
  • orange

17. Iron 2+ and Carbonate

  • blue solution + fizzing
  • green ppt
  • blue ppt
  • green solution + fizzing

18. Aluminium 3+ and conc OH

  • yellow solution
  • green solution
  • colourless
  • white ppt

19. Iron 3+ and water

  • brown/ yellow/ purple
  • pink/ red
  • green/ blue
  • brown/ yellow

20. Iron 2+ and conc ammonia

  • orange
  • blue ppt
  • green gelatenous ppt
  • green solution