NEET Chemistry Chemical Kinetics Questions Solved


What fraction of a reactant showing first order remains after 40 minute if t1/2 is 20 minute?

(a) 1/4

(b) 1/2

(c) 1/8

(d) 1/6

N=N0/2n

n=T/tN1/2=40/20=2

N=N0/22=N0/4

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