Question

$A → B$ The above reaction is of zero order Half life of this reaction is 50 min The time taken for the concentration of A to reduce to one-fourth of its initial value is ____ min (Nearest integer)

Answer 1

The correct answer is 75.
Assume reaction starts with 1 mole A
(t1/2​=2ka​,K=2×501​
For 75% completion
a−4a​=kt
t=43​ka​=43​×a100​=75