A → B The above reaction is of zero order. Half life of this reaction is 50   min . The time…

AB

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)

Solution

The integrated rate equation of zero order reaction is

kt=A0-At

Assume reaction starts with 1 mole A

t1/2=a2k,K=12×50

For 75% completion

A0=a, At=a4

a-a4=kt

t=34ak=34×100a=75 min

Asked in: JEE Main 2023 (01 Feb Shift 2)

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