what is the colour of FeSO4 crystals? how does this color change after heating?
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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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the color of FeSO4 crystals is light green .
on heating them they loose water and unhydrous ferrous sulphate is formed so that's why it's colour is changed from light green to white.
hope this helps you
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