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Chemistry - Chemical Kinetics Question with Solution | TestHub

ChemistryChemical KineticsSecond & nth Order ReactionsMedium2 minPYQ_2025

ChemistryMediumsingle choice

If the half-life $(t_{1/2})$ for a first order reaction is 1 minutes, then the time required for $99.9%$ completion of the reaction is closest to:NEET 2025

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Answer:

Solution:

For $1^{st}$ order reactions : $t_{99.90%} t_{99.9%} = 10 \times t_{1/2} = 10 \times 1 = 10 minute$

Stream:NEETSubject:ChemistryTopic:Chemical KineticsSubtopic:Second & nth Order Reactions

⏱ 2mℹ️ Source: PYQ_2025

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