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MHT CET20255 May 2025Evening ShiftChemistryChemical KineticsActual

Which of the following statements is NOT correct regarding order of reaction?

Options

  1. AIt is determined experimentally.
  2. BIt is not influenced by stoichiometric coefficient of reactants.
  3. CIt is sum of power to the concentration terms of reactants in rate law equation.
  4. DIt is always whole number.

Correct answer

D. It is always whole number.

Step-by-step solution

The order of a reaction, an experimentally determined quantity, specifies how the rate depends on reactant concentrations. A. The order must be determined experimentally, as it is not generally predictable from stoichiometric coefficients. B. The stoichiometric coefficients do not influence the order, which may differ from them in complex reactions. C. The overall order is the sum of the exponents on the concentration terms in the rate law: for Rate = k[A]^x[B]^y , it is x + y . D. Orders are not necessarily whole

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