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nAto products is a first order reaction ...

`nAto` products is a first order reaction with `k=10" min"^(-1)`. If the reaction is started with `[A]=0.4M`, after . . .. min, [A] would become `0.04` M.

A

`4.606`

B

`2.303`

C

`0.2303`

D

`6.99`

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The correct Answer is:
C
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