Question

what happens when crystal of FeSO4 are heated strongly in test tube.

Answer 1

When The Crystals Of Feso4 are heated strongly The Reactants Break down to give simpler products. This is a decomposition reaction.Ferrous Sulphate Crystals lose water and its colour fades and it forms ferric oxide fe203 sulphur dioxide SO2 and Sulphur Trioxide S03.
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Answer 2

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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