A flask contains a mixture| Chemical Kinetic | JEE-MAIN 2020

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JEE MAIN 2020

05-09-2020 S1

Question

A flask contains a mixture of compounds A and B. Both compounds decompose by first-order kinetics. The half-lives for A and B are 300 s and 180 s, respectively. lf the concentrations of A and B are equal initially, the time required for the concentration of A to be four times that of B (in s) is : (Use In 2 = 0.693)

Select the correct option:

A

120

B

300

C

180

D

900

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

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