i) What is the color of ferrous sulphate crystals?How does this color change after heating? ii) Name the product formed on strongly heating ferrous sulphate crystals. What type of chemical reaction occurs in this change?
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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).
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