Published by:
CGP EDU Academic Team
Published on: August 14, 2026
For the first order reaction A 
B Br the half life is 30 mm. The time taken for 75% completion of the reaction is_____mm. (Nearest mteger)
Given; log 2 = 0.3010
l O g 3 = 0.4771
log 5 = 0.6989
Text Solution
Verified by ExpertsThe correct answer is:
60
(60)
t 1/2 = T 50 = 30 min
T 75 = 2t 1/2 = 30 x 2 = 60 min
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