NCERT · Class 10 · Science · Chemical Reactions and EquationsWhat is the difference between a combination reaction and a decomposition reaction?
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Total Attempts: 3
Accuracy Rate: 33.3%
Step-by-Step Solution
A combination reaction is a type of reaction in which two or more substances combine to form a new substance. On the other hand, a decomposition reaction is a type of reaction in which a single substance breaks down into two or more simpler substances.
Detailed Options Breakdown
Option : Combination reaction is exothermic, while decomposition reaction is endothermic
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Chemical Reactions and Equations.
Option 1: Combination reaction involves the formation of a new substance, while decomposition reaction involves the breakdown of a substance (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: Combination reaction is a physical change, while decomposition reaction is a chemical change
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Chemical Reactions and Equations.
Option 3: Combination reaction occurs at high temperature, while decomposition reaction occurs at low temperature
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Chemical Reactions and Equations.
💡 Study Guide: This question tests core syllabus concepts from Chemical Reactions and Equations. For formulas, key summaries, and mock exam reference guides, read the full Chemical Reactions and Equations Revision Notes.