Question

question 1 (1 point)
which step of a reaction is the rate - determining step?
the fastest step
the first step
the last step of the reaction mechanism
the step with the greatest number of molecules
the slowest step

Explanation:

In chemical kinetics, the rate - determining step (RDS) is the step in a reaction mechanism that occurs the slowest. Since the overall rate of a reaction is limited by the slowest - occurring step, this step governs the rate of the entire reaction. The fastest step does not limit the reaction rate. The first or last step of a reaction mechanism is not necessarily the slowest. The number of molecules in a step (molecularity) does not directly determine if it is the rate - determining step.

Answer:

the slowest step