4 Some Group 2 compounds can be used to neutralise acid soils and to treat acid indigestion. Which Group 2 compound would not be suitable for either use? A BaSO_(4) B CaCO_(3) c Ca(OH)_(2) D Mg(OH)_(2) Your answer square

## Step1:In order to neutralize acid soils or to treat acid indigestion, a substance must have alkalinising or neutralizing capacity. Substances like , \( \mathrm{Ca}(\mathrm{OH})_{2} \), and \( \mathrm{Mg}(\mathrm{OH})_{2} \) have such alkalising capabilities. They are bases which can neutralise acids in a neutralisation reaction.## Step2: Unlike the aforementioned substances, is insoluble in water and cannot result in ion formation, which is crucial an acid-base neutralization. Therefore, cannot function as a neutralising agent in the above mentioned context.## Step3:Hence, would not be suitable for application in neutralising acid soils or treating acid indigestion, while the other candidate compounds will function to varying degrees.