When a single compound breaks down into two or more simpler substances on heating, what type of reaction is it?
Answer and explanation
Correct answer: Thermal decomposition reaction
A thermal decomposition reaction occurs when heat breaks one compound into two or more simpler substances. Its general pattern is AB → A + B, with the heat symbol Δ over the arrow. Option A names both the energy condition and the reaction type. A combination reaction produces one compound, while displacement and double displacement involve replacement of atoms or ions rather than heat-driven breakdown.
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What is the correct answer to this question?
Thermal decomposition reaction
Why is this the correct answer?
A thermal decomposition reaction occurs when heat breaks one compound into two or more simpler substances. Its general pattern is AB → A + B, with the heat symbol Δ over the arrow. Option A names both the energy condition and the reaction type. A combination reaction produces one compound, while displacement and double displacement involve replacement of atoms or ions rather than heat-driven breakdown.
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.
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