Question

The rate of a chemical reaction:

• A. increases as the reaction proceeds
• B. decreases as the reaction proceeds
• C. may increase or decrease during the reaction
• D. remains constant as the reaction proceeds

Answer 1

The correct option is B decreases as the reaction proceeds

Rate of chemical reaction depends upon the concentration of reactants. As the reaction proceeds are used up. Hence their concentration decreases.. Thus, the rate of reaction decreases as the reaction proceeds.