NCERT · Class 10 · Science · Chemical Reactions and EquationsWhat is the role of a catalyst in a chemical reaction?
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Total Attempts: 3
Accuracy Rate: 33.3%
Step-by-Step Solution
A catalyst is a substance that speeds up a chemical reaction without being consumed or altered in the process. It works by lowering the activation energy required for the reaction to occur.
Detailed Options Breakdown
Option : To increase the rate of reaction
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Chemical Reactions and Equations.
Option 1: To decrease the rate of reaction
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Chemical Reactions and Equations.
Option 2: To change the products of the reaction
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Chemical Reactions and Equations.
Option 3: To speed up the reaction without being consumed or altered (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
💡 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.