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JEE Main Chemistry question

ChemistryChemical KineticsJEE Main

Which of the following statements are correct? 1. Order of a reaction can be known from experimental result and not from the stoichiometry of reaction 2. Overall molecularity of a reaction may be determined in a manner similar to overall order of reaction 3. Overall order of reaction, is 4. Molecularity of a reaction refers to (i) Molecularity of each of the elementary steps (slow steps) in a multistep reaction (ii) Molecularity of that particular step in a single step reaction

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Answer: (D)

Solution

Order of reaction must be found experimentally and need not match the stoichiometric coefficients (statement 1 correct); molecularity, like order, is also determined from the reaction mechanism (statement 2 correct); molecularity refers to the elementary (rate-determining) step of a multistep mechanism, or to the

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Question ID VK-144429