Question

2. In decomposition of ferrous sulphate we observe ?
a. Smell of burning sulphur
b. Faint green colour liquid is formed
c. Water vapours are collected on the inner side of the test tube
d. Salts become red​

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

a. Smell of burning sulphur