Question

What product form from burning of ferrous sulphate?

Answer 1

Ferrous sulphate crystals contain water molecules (FeSO4. 7H2O). ... On further heating, anhydrous ferrous sulphate decomposes to form ferric oxide (Fe2O3), sulphur dioxide (SO2) and sulphur trioxide (SO3). So, the gas emitted smells like burning sulphur

Answer 2

When Ferrous Sulphate is heated strongly, it decomposes to form ferric oxide, sulphur dioxide and sulphur trioxide.

Heat

2FeSO4 (s)---------------->Fe2O3 (s) + SO2 (g) +SO3 (g).