1.A gas turns lime water milky and acidified K2Cr2O7\mathrm{K_2Cr_2O_7}K2Cr2O7 solution green. The gas is:a.HCl\mathrm{HCl}HClb.H2S\mathrm{H_2S}H2Sc.SO2\mathrm{SO_2}SO2d.CO2\mathrm{CO_2}CO2Login to continueOnly logged in users canattempt or see the solution.
