JAMB - Chemistry (2023 - No. 26)
Which of the following factors does NOT affect the rate of a chemical reaction?
Concentration of reactants
Presence of a catalyst
Molecular weight of products
Temperature
Explanation
The molecular weight of products is not directly related to the rate of a chemical reaction. The factors that affect the reaction rate include concentration of reactants, temperature, presence of catalysts, surface area, and the nature of the reactants and products.