Which of the following is correct?
Correct answer: B. In some cases, the molecularity of a reaction is the same as the order of reaction
- A. Molecularity of a reaction is always the same as the order of reaction
- B. In some cases, the molecularity of a reaction is the same as the order of reaction
- C. Molecularity of a reaction is always greater than the order of reaction
- D. All statements above are correct
Explanation
True for elementary reactions, where the rate law can be written directly from the stoichiometry.Example: A→productsA → productsA→products (unimolecular) → order = 1, molecularity =1.
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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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