Which from following decides the rate of multistep reaction?
Which from following decides the rate of multistep reaction?
rate of slowest step.
rate of fastest step.
average rate of various steps.
instantaneous rate of fast step.
Solution
The correct answer is $(\mathrm{A})$ rate of slowest step.
In a multistep reaction, the overall rate of the reaction is determined by the rate of the slowest step, also known as the rate-determining step. This is because the slowest step acts as a bottleneck, limiting the overall rate at which the entire reaction proceeds. Even if other steps are faster, the overall rate cannot exceed the rate of the slowest step.