Question

Which of the following statements is not correct about order of a reaction.
(i) The order of a reaction can be a fractional number.
(ii) Order of a reaction is experimentally determined quantity.
(iii) 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.
(iv) The order of a reaction is the sum of the powers of molar concentration
of the reactants in the rate law expression.


NCERT Class XII
Chemistry - Exemplar Problems

Chapter 4. Chemical Kinetics

Answer 1

(iii) The order of a reaction is always equal to the sum of the stoichiometric coefficients of reactants in the balanced chemical equation for a react"..........answer is third option

Answer 2

Option (iii) is not correct about order of a reaction.
Because, the order of a reaction doesn't depend on the stoichiometry of a reaction.