Question

a. What is colour of ferrous sulphate crystals? How

does this colour change after heating?

b. Name the products formed on strongly heating

ferrous sulphate crystals. What type of chemical

reaction occurs in this change?​

Answer 1

Explanation:

a. On heating, ferrous sulphate crystals lose water and anhydrous ferrous sulphate (FeSO4) is formed. So their colour changes from light green to white. On further heating, anhydrous ferrous sulphate decomposes to form ferric oxide (Fe2O3), sulphur dioxide (SO2) and sulphur trioxide (SO3).

b.The products formed are ferric oxide, sulphur dioxide and sulphur trioxide. During this change, decomposition reaction occurs