Question

Write down the change of colour when green crystal of iron are heated strangely define the type of chemical reaction

Answer 1

Answer:

colour changes from light green to white..

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Explanation:

Answer 2

Answer:

On heating, ferrous sulphate crystals lose water and anhydrous ferrous sulphate (FeSO  

4

​  

) is formed. So their colour changes from light green to white. On further heating, anhydrous ferrous sulphate decomposes to form ferric oxide (Fe  

2

​  

O  

3

​  

), sulphur dioxide (SO  

2

​  

) and sulphur trioxide (SO  

3

​  

).

2FeSO  

4

​  

 

→

Δ

Fe  

2

​  

O  

3

​  

+SO  

2

​  

+SO  

3

​  

 

The reaction for the decomposition of ferrous sulphate is as above.