Question

student heat 2 gram of ferrous sulphate crystal in a drawing boiling tube and observe that reddish brown solids ofstudent heat 2 gram of ferrous sulphate crystal in a drawing boiling tube and observed that reddish brown solid disc left Behind and a small of burning a identify the type of reaction be write a chemical equation to represent the above change three list for change changes which help us to determine whether a chemical reaction has taken place ​

Answer 1

Answer:

Explanation:

2 g of ferrous sulphate crystals are heated in a boiling tube then  we observe that :

1 Ferrous sulphate crystals contains 2 water moelcules.

On heating it looses water molecules and becomes anhydrous ferrous sulphate .

2. Colour changes from  light green to white . Ferrous sulphate crystals  which are in green colour decomposes  to give Ferric oxide , sulphur dioxide and sulphur trioxide gas.

3. On further heating  FeSO4 anhydrous changes to dark brown solid ..

4. The gas emitted has the characteristics smell of sulphur.

Chemical reaction :.

2FeSO4 (S) -------------->Fe2O3 (S) +SO2(g) +SO3 (g)

Anhydrous                  Ferric oxide

Ferrous sulphate

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