Question

A green coloured salt on heating loses water molecules and
changes into a reddish brown coloured substance ‘X’ along with
the liberation of two gases ‘Y’ and ‘Z’. ‘Y’ and ‘Z’ are oxides of of
the same non metal. ‘Y’ on oxidation produces‘Z’.
(a) Identify X,Y and Z.
(b) Write the balanced chemical reactions involved in this process.

Answer 1

Explanation:

The substance in pale green colour is FeSO₄. When it is kept in air for longer time it decompose to form Ferric oxide, sulphur dioxide and sulphur dioxide. The chemical reaction involved is as follows. FeSO4 →Fe2O3 + S02 + SO3 So ‘X ‘in the above is Ferrous sulphate. And Y is Ferric oxide. Non metal oxides are sulphur dioxide and sulphur trioxide.

Answer 2

Answer:

The substance in pale green colour is FeSO₄. When it is kept in air for longer time it decompose to form Ferric oxide, sulphur dioxide and sulphur dioxide. The chemical reaction involved is as follows. FeSO4 →Fe2O3 + S02 + SO3 So ‘X ‘in the above is Ferrous sulphate. And Y is Ferric oxide. Non metal oxides are sulphur dioxide and sulphur trioxide

Explanation: