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Aim : To study the decomposition of ferrous sulphate on heating Activity: Take approximately 2 g of ferrous sulphate crystals in a dry boiling tube. Heat the boiling tube over the flame of a burner. Observe the colour of the ferrous sulphate crystals carefully during the heating. Observe the colour of the crystals after heating it. On heating ferrous sulphate in boiling tube, a gas evolved which has a characteristic smell. What is its reason ?

Answer»

Solution :On heating ferrous sulphate, a GAS having specific SMELL is evolved due to COMBUSTION of sulphur. The combustion of sulphur forms `SO_(2)(g)` and `SO_(3)(g)` which possesses strong irritating smell.


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