Assertion (A) : The order of a reaction may be defined as the sum of the powers to which the concentration terms are raised in order to determine the rate of reaction gives the total order of reactions.
Reason (R) : The number of molecules whose concentrations determine the ratio of reaction at a given temperature is called order to the reaction.

Options

A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not a correct explanation of A
C. A is true but R is false
D. A is false but R is true

Answer

A