Chlorine prepared through the action of concentrated hydrochloric acid on potassium tetraoxomanganate (VII) is passed through water and concentrated \(H _{2} SO _{4}\) to respectively ____________
A. remove \(HCl\) impurities and dry the gas B. dry the gas and remove \(HCl\) impurities C. remove hydrogen gas and dry the gas D. remove carbon impurities and make the chlorine gas reactive
Correct Answer: A
Explanation
Since \(HCl\) is very soluble in water, \(HCl\) impurities in the sample of chlorine gas prepared is easily removed by passing the gas through water. The function of concentrated \(H _{2} SO _{4}\) is to dry the gas.