Question

which of the following is necessary to increase the rate of a reaction
a. a decrease in the frequency of collisions
b. an increase in the frequency of collisions
c. a decrease in the frequency of successful collisions
d. an increase in the frequency of successful collisions

Answer 1

An increase in the frequency of effective collisions because it is these collisions that cause reactants to change to products

Answer 2

D - an increase in the frequency of successful collisions