Ferrous sulfate decomposes with the evolution of a gas having a characteristic odor of burning sulfur. Write the chemical reaction involved and identify the type of reaction.
a) FeSO₄ →FeO+SO₂ +O₂ ; Decomposition
b) FeSO₄ →Fe₂ O₃ +SO₂ +O₂ ; Decomposition
c) FeSO₄ →Fe₂ S₃ +SO₂ +O₂ ; Decomposition
d) FeSO₄ →Fe₂ S₃ +SO₃ ; Combustion
