CBSE 2024 · Region 1 · Set 1 · Q18 · 2 marks
Define molecularity of the reaction. State any one condition in which a bimolecular reaction may be kinetically of first order.
Marking-scheme solution
The number of reacting species taking part in an elementary reaction, which must collide simultaneously in order to bring about a chemical reaction is called molecularity of a reaction.
When one of the reactants is in excess.
Chemical KineticsIntegrated Rate EquationsUnderstandvery_short_answermedium
More from Chemical Kinetics
- Assertion: For a zero order reaction the unit of rate constant and rate of reaction are same. Reason (R):…2023 · asked 4×
- Show that the time required for 99.9 % completion in a first order reaction is 10 times of half-life (t 1 /…2024 · asked 3×
- Which of the following curve represents the first order reaction?2026 · asked 3×
- Read the passage given below and answer the questions that follow: The rate law for a chemical reaction…2022 · asked 3×
- The following initial rate data were obtained for the reaction: 2 NO( g)+Br 2( g) → 2 NOBr( g) What is the…2024 · asked 3×
- Answer the following questions (Do any two): Identify the order of reaction from the following unit for its…2022 · asked 3×
- In a reaction, if the concentration of reactant ' X ' is tripled, the rate of reaction becomes twenty-seven…2024 · asked 3×
- The number of molecules that react with each other in an elementary reaction is a measure of the:2025 · asked 3×
CBSE Class 12 Chemistry past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.