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The rate constant of the reaction A rarr...

The rate constant of the reaction `A rarr B` is `0.6 xx 10^(-3)` mole per second. If the concentration of `A` is `5 M`, then concentration of `B` after `20` minutes is:

A

0.36 M

B

0.72 M

C

1.08 M

D

3.60 M

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The correct Answer is:
B
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