Which of the following statements is not correct about order of a reaction.
1
The order of a reaction can be a fractional number.
2
Order of a reaction is experimentally determined quantity.
3
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.
4
The order of a reaction is the sum of the powers of molar concentration of the reactants in the rate law expression.