C-06-Q109mediumsingle_mcqThe empirical formula of H2SO4\mathrm{H_2SO_4}H2SO4 is—aHSObH2SO4\mathrm{H_2SO_4}H2SO4cH2SO2\mathrm{H_2SO_2}H2SO2dSO4\mathrm{SO_4}SO4