Required Practical 11

• How do transition metals undergo precipitation reactions?

  They react with hydroxide ions to form a metal hydroxide precipitate
• What can be reacted with transition metals for a precipitation reaction to occur?


  aqueous sodium hydroxide and ammonia
• What is the first test that can be carried out to identify a transition metal ion?

  - place 10 drops of each solution iin a test tube. Add NaOH solution drop-by-drop to each until in excess. Record any observations

  - stand in a beaker of hot water for 1110 minutes
• What is the second test that can be carried out to identify transition metal ions?

  - add about 10 drops of each solution into a different test tube with Na2CO3. Shake and record observations-