Question

Write the characteristic odour obtained when ferrous sulphate is heated strongly.​

Answer 1

Question

Write the characteristic odour obtained when ferrous sulphate is heated strongly.

Answer:

When Ferrous Sulphate is heated strongly, it decomposes to form ferric oxide, sulphur dioxide and sulphur trioxide.A smell of burning sulphur is obtained due to formation of sulphur dioxide gas.

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).

This is a double decomposition reaction in which green colour of ferrous sulphate changes to brown due to the formation of ferric oxide.

A smell of burning sulphur is obtained due to formation of sulphur dioxide gas.

This reaction is actually Thermal decomposition .