describe an activity show the decomposition reaction of ferrous sulphate in lab
Answers
Explanation:
1. Take about 2 grams of ferrous sulphate crystals (green coloured) in a dry boiling tube.
2. Heat the boiling tube over a burner (by keeping the mouth of boiling tube away from face).
3. The green colour of ferrous sulphate crystals first changes to white and then a brown solid (ferric oxide) is formed.
4. A gas having smell of burning sulphur comes out of the boiling tube.
Procedure -
Take about 2g of ferrous sulphate crystals in a dry boiling tube and note the colour of the crystals.
Hold the boiling tube with a test tube holder and heat the boiling tube over the flame of a burner.
Smell the gas being emitted.
Observe the colour of the crystals after heating.
Observations:
The ferrous sulphate crystals are light green in colour.
The gas emitted has the characteristic odour of burning sulphur.
On heating, the colour changes from light green to white.
On further heating, the white substance changes to dark brown solid.
hope it helps ☺️........