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18. In a first-order reaction, the half-life is 3 minutes. What is the rate constant? A) 5490 s B) 8.75 x 105 s D) 1.26 x 104s E) 0.315 s C) 5.25 x 103s
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is Half life period for first order reaction 2 13 2 min 2 132x 60 Sec 9 20 se 67 七 2 Ko. 613 1920 S

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