Question

List any two observation when ferrous sulfate is heated in a dry test tube

Answer 1

Answer:

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).

Answer 2

Answer:

The gases evolved are SO2 and SO3

Explanation:

1. Change in colour of crystal from green to white .

2. Evolution of gas .