reactivity of zinc, iron and lead is to be tested by using dilute hcl how can this done by simple experiment
Answers
Answer:
Explanation:
n order to determine the relative reactivity of each metal we will carry out displacement reactions by reacting each metal with a solution of another metal ion. If the metal is more reactive than the metal in a solution (present as an ion), then a displacement reaction will occur and we will observe a change in the reaction.
‘A more reactive metal will displace a less reactive metal from its ion in solution’
Apparatus and chemicals
Test-tube rack
Test-tubes x3
Copper(II) sulfate solution (0.5 mol/dm3)
Magnesium sulfate solution (0.5 mol/dm3)
Zinc sulfate solution (0.5 mol/dm3)
Iron(II) sulfate solution (0.5 mol/dm3)
Pieces of copper foil (3 small pieces approx. 1 cm2)
Zinc (3 small granules or pieces of foil approx. 1 cm2)
Iron (3 small ungalvanised nails)
Magnesium ribbon (3 small pieces 1 cm length)
Investigate the reactivity of copper.
Method
Half-fill separate test-tubes with magnesium sulfate, iron(II) sulfate and zinc sulfate solutions.
Add a piece of copper to each test-tube.
Leave for 3 minutes, record observations.
Investigate the reactivity of iron.
Method
Half-fill separate test-tubes with copper(II) sulfate, magnesium sulfate and zinc sulfate solutions.
Add a piece of iron to each test-tube.
Leave for 3 minutes, record observations.
Testing the reactivity of zinc.
Method
Half-fill separate test-tubes with copper(II) sulfate, magnesium sulfate and iron(II) sulfate solutions.
Add a piece of zinc to each test-tube.
Leave for 3 minutes, record observations.
Testing the reactivity of magnesium.
Method
Half-fill separate test-tubes with copper(II) sulfate, iron(II) sulfate and zinc sulfate solutions.
Add a piece of magnesium to each test-tube.
Leave for 3 minutes, record observations.