Question:
The rate-determining step in a reaction mechanism is the:
The rate-determining step in a reaction mechanism is the:
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Think of a relay race: the overall time is mostly determined by the slowest runner.
Updated On: May 5, 2026
- Fastest step
- Slowest step
- Last step
- First step always
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The Correct Option is B
Solution and Explanation
Step 1: Concept
Complex chemical reactions often occur through a series of elementary steps known as the reaction mechanism.
Step 2: Meaning
The rate-determining step (RDS) is the specific stage in the mechanism that governs the overall speed of the chemical reaction.
Step 3: Analysis
Similar to a bottleneck in a pipe, the entire process cannot proceed faster than its most time-consuming part. The fastest steps must wait for the slower ones to complete.
Step 4: Conclusion
Therefore, the slowest step in any reaction mechanism is the rate-determining step. Final Answer: (B)
Complex chemical reactions often occur through a series of elementary steps known as the reaction mechanism.
Step 2: Meaning
The rate-determining step (RDS) is the specific stage in the mechanism that governs the overall speed of the chemical reaction.
Step 3: Analysis
Similar to a bottleneck in a pipe, the entire process cannot proceed faster than its most time-consuming part. The fastest steps must wait for the slower ones to complete.
Step 4: Conclusion
Therefore, the slowest step in any reaction mechanism is the rate-determining step. Final Answer: (B)
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