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.
Frequently asked questions
What is the correct answer to this question?
Decomposition reaction
Why is this the correct answer?
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.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
