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What is a reaction called in which a single compound breaks down into two or more simpler substances?

Answer and explanation

Correct answer: Decomposition reaction

A decomposition reaction follows the pattern \(AB \rightarrow A + B\): one compound breaks into two or more simpler substances. For example, on heating, calcium carbonate decomposes as \(CaCO_3 \rightarrow CaO + CO_2\). This is the reverse structural pattern of combination, which forms one product from multiple reactants. Displacement involves replacement by an element, and double displacement involves exchange between two compounds.

Related tags

Decomposition ReactionReaction TypesChemical EquationsClass 10 ScienceChemical Reactions And EquationsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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