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KEAM First-Order Half-Life — practice questions

2 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.

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A first-order reaction completes 75% in 30 minutes. Its half-life (using $t_{1/2}$ being independent of concenFor a first-order reaction, the relation between rate constant and half-life is $t_{1/2} = 0.693/k$. If $k = 2