A reaction which is of first order w.r.t...

A reaction which is of first order w.r.t reactant A has a rate constnat is `6"min"^(-1)`. If we start with `[A]=0.5"mol"L^(-1)` when would [A] reach the value of `0.05 "mol"L^(-1)`

`0.384` min

`15` min

`20` min

`3.84` min

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