Answer: Option (a) is the correct answer.
Explanation:
Rate of reaction is defined as the rate at which a chemical reaction occurs. That is, it tells how rapidly or slowly the products are formed.
Mathematically, Rate = [tex]\frac{-\Delta [reactants]}{\Delta t}[/tex]
It also tells the number of successful collisions taking place.
Thus, we can conclude that the speed at which products form is measured by the reaction rate.
