Question

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Answer 1

Explanation:

2FeSO4(s) --Heat--> Fe2O3(s) + SO2(g) + SO3(g)

• When ferrous sulphate is heated strongly, it decomposes to form ferric oxide, sulphur dioxide and sulphur trioxide.
• This is the example of decomposition reaction.

Additional information :-

Types of chemical reaction :-

• Combination reaction -

Those reaction in which two or more substances combined to form a single substance, are called combination reaction.

• Decomposition reaction -

Those reaction in which a compound splits up into two or more simpler substances are known as decomposition reaction.

• Displacement reaction -

Those reaction in which one element takes the place of another element in a compound, are known as Displacement reaction.

• Double Displacement reaction -

Those reaction in which two compounds react by an exchange of ions to form two new compounds are called double displacement reaction.

Answer 2

Answer- The above question is from the chapter 'Chemical Equations and Reactions'.

Balanced chemical equation is as follows:

                 Δ

2FeSO₄ -------> Fe₂O₃ + SO₂ + SO₃

More to know:-

You may get a related question-

Question: Kusum took a pale green substance A in a test tube and heated it over the flame of a burner. A brown colour residue B was formed along with evolution of two gases with burning smell of sulphur. Identify A and B and write the chemical reactions involved.

Answer: A = Hydrated Ferrous Sulphate (FeSO₄.7H₂O)

B = Ferric Oxide (Fe₂O₃)

The required chemical equations are:

                          Δ

1) FeSO₄.7H₂O ------> FeSO₄ + 7H₂O

                    Δ

2) 2FeSO₄ -------> Fe₂O₃ + SO₂ + SO₃