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Chemistry - Chemical Kinetics Question with Solution | TestHub

ChemistryChemical KineticsSecond & nth Order ReactionsHard2 minPYQ_2003

ChemistryHardsingle choice

The radiosotope tritium $(_{1}^{3} H)$ has a lalf life of 12.3 years. If the initial amount of tritium is $32 mg$ , how many milligrams of it would remain after 49.2 yearsNEET 2003

Options:

Answer:

Solution:

$T n N = t^{1/2} \times n = \frac{49.2}{12.3} = 4 = N_{0} (1/2)^{n} = 32 (1/2)^{4} = 2 mg$

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

⏱ 2mℹ️ Source: PYQ_2003

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