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

1. Order can be determined only experimentally.
2. Order is not influenced by stoichiometric coefficient of the reactants.
3. Order of reaction is sum of power to the concentration terms of reactants to express the rate of reaction.
4. Order of reaction is always whole number.

Correct answer: Order of reaction is always whole number.

Solution

The order of a reaction can be fractional or zero, not always a whole number, making option D incorrect.

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