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Molecularity of a reaction is equal to the total number of _____________

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Molecularity of a reaction is equal to the total number of _____________

(a) Products formed in the elementary step

(b) Reactants taking part in elementary step

(c) Reactants and products in the elementary step

(d) Reactants and products in the final step

The question was posed to me in an interview for job.

My doubt stems from Molecularity of a Reaction in section Reaction Dynamics of Engineering Chemistry I

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Correct choice is (b) Reactants taking part in elementary step

Explanation: Molecularity of a reaction is equal to the total number of reactants taking part in an elementary step. It is defined as the number of molecules or ions that participate in the rate determining step.

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