Which one of the following statements for the order of a reaction is incorrect?

Which one of the following statements for the order of a reaction is incorrect?
  1. Order is not influenced by stoichiometric coefficient of the reactants
  2. Order of reaction is sum of power to the concentration terms of reactants to express the rate of reaction
  3. Order of reaction is always whole number
  4. Order can be determined only experimentally

Solution

Order of reaction may be zero, whole number or fraction number.

Asked in: NEET 2011 (Screening)

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