$($a$).$ The limestone FGD scrubber has been quite popular for controlling the $S{O}_2$ enissions from industrial flue gases. An engineer proposed to replace the limestone$-$based process with a water$-$baced process $[$ie$,$ no limestone use$)$ driven by the reasoning that $S{O}_2$ is highly soluble in water with a solubility limit of $94\frac{g}{L}$ so scrubbing with water alone can also remove $S{O}_2$ from flue gases. Would you accept this proposal? Justify jour acceptance or rejection with reasons.