Question

The rate of a chemical reaction is:

• A. inversely proportional to the concentration of the reactants at that time
• B. directly proportional to the concentration of the reactants at that time
• C. directly proportional to the concentration of the products at that time
• D. none of the above

Answer 1

The correct option is B directly proportional to the concentration of the reactants at that time

According to the law of mass action, the rate of a chemical reaction at a constant temperature depends only on the concentrations of the substances that influence the rate.
More the concentration of reactants, higher is the rate.