2 A k B is a zero-order reaction, where k=1.0 mol L^-1 min^-1. If the initial concentration of A is 2 M, then the time taken to complete 75\% of the…

$\displaystyle 2 \mathrm{~A} \xrightarrow{k} \mathrm{~B}$ is a zero-order reaction, where $\displaystyle k=1.0 \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~min}^{-1}$. If the initial concentration of A is $\displaystyle 2$ M, then the time taken to complete $\displaystyle 75$% of the reaction will be