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

The order of a reaction can be a fractional number

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Order of a reaction is experimentally determined quantity

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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

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The order of a reaction is the sum of the powers of molar concentration of the reactants in the rate law expression

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Solution

The correct option is 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
A) order of the reaction can be zero, positive and fractional.
B) order is an experimentally determined quantity.
C) order of reaction is not always equal to sum of stoichiometric coefficients of balanced equation for a reaction. As sometimes it can vary because of being experimentally verified.
So, option 'c' is incorrect.

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Similar questions

Which of the following statements is not correct about order of a reaction ?
(a) The order of a reaction can be fractional number
(b) Order of a reaction is experimentally determined quantity
(c) The order of 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.

Q. Consider the following statements:
1. The rate of reaction is always proportional to the concentration of reactants.
2. The order of an elementary chemical reaction step can be determined by examining its stoichiometry.
3. The first order reactions follow an exponential time course.
Of these statements:

Q. The rate of loss of reactants is equal to the rate of formation of products in a chemical system.
A rate law for a reaction can be determined by which of the following?

Q.
Which of the following is a correct expression for the integrated rate law of first order reaction :

A \to Products

?
Here,

a = [A]_{0} = Initial concentration of the reactant A

(a - x) = [A] = Concentration of the reactant A at time t

Q. Under a given set of experimental conditions, with increase in the concentration of the reactants, the rate of a chemical reaction________for positive order reactions.

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