Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Half-life period of a first order reaction is 
. Starting with initial concentration 
, the rate after 
is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
: 
Initial conc.
is 
, after 20 minutes the concentration will be 
.
Hence, Rate 
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