Question

You are provided with Magnesium ribbon and sulphur powder and Oxygen only

Explain with the help of an activity to identify Mg and S as metal or nonmetal under following headings:

Aim

Theory

Procedure

Observations

Equations

Conclusion

Answer 1

AIM :

To test the nature of oxides formed by metals and non-metals.

MATERIALS REQUIRED:

Sulphur powder, Mg ribbon, water, blue litmus paper, red litmus paper.

PROCEDURE :

1.Take magnesium ribbon with a pair of tongs and burn it in flame in the presence of air.

2.Collect the product formed and dissolve it in warm water.

3.Add red litmus paper into it.

4.Observe the change in colour and decide the nature of the oxide formed.

5.Burn sulphur in a deflagrating spoon in the presence of air and dissolve the oxide formed in

water.

6.Dip blue litmus paper into the solution and observe the changein the colour and decide the

nature of the oxide formed.

OBSERVATION:

The oxide formed by metal turns red litmus blue whereas oxide of non-metal turns blue litmus