Question

on heating the pale green coloured crystals of ferrous sulphate undergoes decomposition. A mixture of which two gases is formed

Answer 1

when ferrous sulphate is heated sulphur dioxide and sulphur trioxide are released and they are pungent smelling

Answer 2

Gases formed during the decomposition of pale green colored crystals of ferrous sulfate are Sulfur dioxide and sulfur trioxide.

Explanation:

• The chemical reaction in which one reactant yields one or more products by decomposing it is called a decomposition reaction.
• When heated, the ferrous sulfate undergoes decomposition and leads to the formation of three products among which one is an oxide, whereas the other two gases.
• The chemical equation involved in the reaction is as follows:

$\mathrm{FeSO}_{4} \stackrel{\Delta}{\rightarrow} \mathrm{Fe}_{2} \mathrm{O}_{3}+\mathrm{SO}_{2}+\mathrm{SO}_{3}$

• From the above reaction, it is inferred that decomposition of ferrous sulfate on heating yields two gases namely sulfur dioxide and sulfur trioxide.

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