Reaction rate of a first order reaction, which is half completed in 23 minutes will be _________________?
Correct answer: B. 0.03 min-1
- A. 0.03 sec-1
- B. 0.03 min-1
- C. 0.03 hr-1
- D. 0.05 min-1
Explanation
For a first-order reaction, the half-life relation is k = 0.693/t₁/₂. Thus k = 0.693/23 = 0.030 min⁻¹, making option b correct.
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