A substance that alters the rate of chemical reaction without being consumed in the reaction is called:
Correct answer: A. Catalyst
- A. Catalyst
- B. Reactant
- C. Product
- D. Activated complex
Explanation
Catalyst increases the speed of reaction by decreasing the activation energy and are reformed at the end of the reaction , and hence we say that they are not consumed.
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About Reaction Kinetics
Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.
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