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MHT CET202410 May 2024Evening ShiftChemistryChemical KineticsActual

Which from following decides the rate of multistep reaction?

Options

  1. Arate of slowest step.
  2. Brate of fastest step.
  3. Caverage rate of various steps.
  4. Dinstantaneous rate of fast step.

Correct answer

A. rate of slowest step.

Step-by-step solution

The correct answer is ( 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.

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