When a green iron salt is heated strongly, its colour finally changes to brown and odour of burning sulphur is given out.
(a) Name the iron salt.
(b) Name the type of reaction that takes place during the heating of iron salt.
Write a chemical equation for the reaction involved.

Question

When a green iron salt is heated strongly, its colour finally changes to brown and odour of burning sulphur is given out.
(a)	Name the iron salt.
(b)	Name the type of reaction that takes place during the heating of iron salt.
Write a chemical equation for the reaction involved.

MyClass24 · Accepted Answer

Ferrous
Decomposition

Ferrous sulphate crystal loses water and forms anhydrous ferrous sulphate and further decomposes to form ferric oxide, sulphur dioxide and sulphur trioxide

2FeSO4&rarr; Fe2O3 + SO2+ SO3

When a green iron salt is heated strongly, its colour finally changes to brown and odour of burning sulphur is given out. (a) Name the iron salt. (b) Name the type of reaction that takes place during the heating of iron salt. Write a chemical equation for the reaction involved.