For the first order reaction \(A\to B\) the half life is \(30 min\). The time taken for 75% completion of the reaction i…

For the first order reaction \(A\to B\) the half life is \(30 min\). The time taken for 75% completion of the reaction is_________ min. (Nearest Integer).

Given:log 2 = 0.3010, log 3 = 0.4771, log 5 = 0.6989

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