Assertion : The rate of reaction is the rate of change of concentration of a reactant or a product.
Reason : Rate of reaction remians constant during the complete reaction.

(A) The rate of the reaction is the rate of change of concentration of a reactant or a product. (R ) Rate of reaction remains constant during the complete reaction.

Assertion :The rate of the reaction, A rarr B is the rate of change of concentration of a reactant or a product. Reason: Rate of reaction remains constant duringthe course of reaction.

This question has Statement I and Statement II. Of four choices given after the Statements choose the one that best describes two statements Statement-I : The rate of the reaction is the rate of change of concentration of reactant or product. Statement-II: Rate of reaction remains constant during the course of reaction.

In a reaction, the rate did not change with concentration of reactants. What is your inference ?

The rate constant of any reaction is proportional to the concentration of the reactants.