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What is a Decomposition Reaction? Give an Example of a Decomposition Reaction. Describe an Activity to Illustrate Such a Reaction by Heating. - CBSE Class 10 - Science

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Question

What is a decomposition reaction? Give an example of a decomposition reaction. Describe an activity to illustrate such a reaction by heating.

Solution

Decomposition reaction is a chemical reaction in which a single compound breaks down to simpler products. It is the opposite of combination reaction.

Example: Decomposition of ferrous sulphate crystals.


2FeSO4 (s) → Fe2O3 (s) + SO2 (g) + SO3 (g)

Heat the ferrous sulphate crystals; the colour of ferrous sulphate crystals is green. On heating, the ferrous sulphate crystals lose their water molecules and therefore the colour of the crystals changes. It is a decomposition reaction because they decompose to simpler molecules.

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APPEARS IN

 Lakhmir Singh Solution for Chemistry for Class 10 (2019 Exam) (2018 to Current)
Chapter 1: Chemical Reactions and Equations
Q: 30 | Page no. 47
Solution What is a Decomposition Reaction? Give an Example of a Decomposition Reaction. Describe an Activity to Illustrate Such a Reaction by Heating. Concept: Chemical Reactions - Types of Chemical Reactions - Decomposition.
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