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Consider the two hypothetical reactions ...

Consider the two hypothetical reactions given below:
`aArarr `products,`k=xmol^-1Lmin^-1`
`bBrarrProducts`,`k=ymin^-1` The half-lives of both the reactions are the same, equal to 1 hr when molar concentration of the reactant is 1.0 M in each case. If these reactions are started at the same time taking 1M of the reactant in each case, the ratio [A]/[B] after 3 hr will be

A

0.5

B

4

C

1

D

2

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KVPY PREVIOUS YEAR-MOCK TEST 1-EXERCISE
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