Question

On heating the pale green coloured crystals of ferrous sulphate undergo decomposition a mixture of

Answer 1

When ferrous sulphate is heated strongly, the following reaction takes place

2FeSO4.7H2O → Fe2O3 + SO2 + SO3.

While SO2 and SO3 evolve out as gases, the residue left is the solid - Fe2O3 (ferric oxide) - which is a reddish brown powder.

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