-: Preparation of gold coins from copper coin :-
Material:-
1. Copper coins / copper sheets.
2. Zinc sulfate (ZnSO4).
3. Pieces of metallic zinc.
4. distilled water.
5. Beaker.
6. Pinch.
7. Stand.
8. Bunsen burner.
9. Metalic Net.
Procedure :-
First, the solution of zinc sulphate (ZnSO4) should be prepared with distilled water in a small beaker. The beaker containing the solution must be heated with a Bunsen burner, placed on a stand with radiance. When heated, a piece of metallic zinc should be added to the solution. Then the copper coin should be placed in the solution. Putting it this way will put a silver lining on the connector after some time. In that case, the pin should be lifted with a pinch. Then remove the beaker and heat the coin with a bunsen burner over the metalic-net which will have a golden color. Then, once the coin is cooled in water, the golden coin will be ready.
Observation: -
Copper has been converted into gold coins by the sale of chemicals. It was not converted into gold coins. The test time may not be specified.
