A and B decompose via first order kinetics with half-lives \( 54.0 \mathrm{~min} \) and \( 18.0 \mathrm{~min} \) respectively. Starting from an equimolar non reactive mixture of \( \mathrm{A} \) and \( \mathrm{B} \), the time taken for the concentration of A to become 16 times that of \( B \) is.................... min (Round off to the nearest Integer)

[JEE Main 2021, 16 Mar (Shift 2)]

Question

A and B decompose via first order kinetics with half-lives \( 54.0 \mathrm{~min} \) and \( 18.0 \mathrm{~min} \) respectively. Starting from an equimolar non reactive mixture of \( \mathrm{A} \) and \( \mathrm{B} \), the time taken for the concentration of A to become 16 times that of \( B \) is.................... min (Round off to the nearest Integer)

[JEE Main 2021, 16 Mar (Shift 2)]

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A and B decompose via first order kinetics with half-lives \( 54.0 \mathrm{~min} \) and \( 18.0 \mathrm{~min} \) respect…

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