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प्रश्न
Which one of the following statements for the order of a reaction is incorrect?
विकल्प
Order is not influenced by stoichiometric coefficient of the reactants.
Order of reaction is sum of power to the concentration terms of reactants to express the rate of reaction.
Order of reaction is always whole number.
Order can be determined only experimentally.
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उत्तर
Order of reaction is always whole number.
Explanation:
Order of reaction is always a whole number. This statement is incorrect because the order of a reaction can be a fraction or even zero, depending on the mechanism. For example, a reaction may be zero-order, first-order, second-order, or fractional order, like `1/2` or `3/2`. The order is not necessarily a whole number and must be determined experimentally, not from the balanced chemical equation.
