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If the concentration be expressed in mol...

If the concentration be expressed in mol `L^-1` units and time in seconds, what would be units for rate constant, k for a first order reaction?

A

`mol litre^-1 s^-1`

B

`mol^-1 litre s^-1`

C

`s^-1`

D

`mol^2 litre^-2 s^-1`

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