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1. |
Which of the following explains the increase in the reaction rate by a catalyst? |
A. | Catalyst decreases the rate of backward reaction so that rate of forward reaction increases |
B. | Catalyst provides extra energy to reacting molecules so that they produce 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» D. Catalyst increases the number of collisions between the reacting molecules. | |