Question

To show displacement reaction between metals and salt solutions​

Answer 1

Answer:

Explanation:

Displacement reactions between metals and their salts. Some metals are more reactive than others. In this experiment, a strip of metal is added to a solution of a compound of another metal. A more reactive metal displaces (pushes out) a less reactive metal from its compound.

Answer 2

Experiment No. X

Aim: To show displacement reaction between metals and salt solutions.

Materials Required: Test-tube, Copper Sulphate Solution (aq), iron nail, sand paper etc.

Procedure:

1. Fill half the test-tube with Copper Sulphate Solution.
2. Clean the Iron nail properly with sandpaper.
3. Put the iron nail into the test tube containing copper sulphate solution.
4. After sometime, you will observe that (i) Blue color of copper sulphate solution changes to green and there is a brown coating on the iron nail.

Results:

1. Iron displaces copper from copper sulphate solution to form iron sulphate solution, that is green in color.
2. There is a brown coating of copper on the iron nail.
3. The reaction is as below:

                           Fe + CuSO₄ -----------> FeSO₄ + Cu

Observations:

1. Blue colored copper sulphate solution changes to light green colored iron sulphate solution.
2. There is a brown coating of copper on the iron nail.