Chemistry · 2021
JEE Main · 18 March 2021, Shift 2 · Q57
A reaction has a half life of 1 min. The time required for 99.9% completion of the reaction is \ \ \ \ min. (Round off to the Nearest Integer). [Use:…
A reaction has a half life of $\displaystyle 1$ min. The time required for $\displaystyle 99.9$% completion of the reaction is
\_\_\_\_ min. (Round off to the Nearest Integer).
[Use : $\displaystyle \ln 2=0.69 ; \ln 10=2.3$ ]
Official answer
10
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