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JEE MAIN 2021
28-04-21 S1
Question
Gaseous cyclobutene isomerizes to butadiene in a first order process which has a ' k ' value of $3.3 \times 10^{-4} \mathrm{~S}^{-1}$ at $153^{\circ} \mathrm{C}$. The time in minutes it takes for the isomerization to proceed $40 \%$ to completion at this temperature is $\_\_\_\_$ .
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