Question

Which of the following statement is not correct about order of a reaction?

• A. The order of a reaction can be a fractional number.
• B. Order of a reaction is experimentally determined quantity.
• C. The order of a reaction is always equal to the sum of the stoichiometric coefficients of reactants in the balanced chemical equation for a reaction.
• D. The order of a reaction is the sum of the powers of molar concentration of the reactants in the rate law expression.

Answer 1

Answer: (C)

The order of a reaction is always equal to the sum of the stoichiometric coefficients of reactants in the balanced chemical equation for a reaction.

Answer 2

The order of a reaction may or may not be equal to the sum of the stocihiometric coefficient of reactants in the balanced chemical equation for a reaction.