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  • For the first order reaction , the half life is 30 min. The time tak

For the first order reaction \mathrm{A \rightarrow B}, the half life is 30 min. The time taken for 75% completion of the reaction is____min. (Nearest integer)
Given :\mathrm{ log 2 = 0.3010}
          \mathrm{ log 3 = 0.4771}
          \mathrm{ log 5 = 0.6989}
 

Option: 1

60


Option: 2

-


Option: 3

-


Option: 4

-


Answers (1)

best_answer

\mathrm{t_{75%}=2t_{\frac{1}{2}}} \mathrm{\left [ For 1^{st}\: order \: reaction \right ]}

\mathrm{t_{75%}=2\times 30=60\mathrm{min}}

 

Posted by

SANGALDEEP SINGH

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