Which of the following explains the increase of the reaction rate by catalyst?

Options

A. Catalyst decreases the rate of backward reaction so that the rate of forward reaction increases
B. Catalyst provides extra energy to reacting molecules so that they may reduce effective collisions
C. Catalyst provides an alternative path of lower activation energy to the reactants
D. Catalyst increases the number of collisions between the reacting molecules.

Answer

C

Explanation

Catalyst increases the rate of reaction by decreasing activation energy.