12 litre of H2 and 11.2 litre of Cl2 are mixed and exploded. The amount of remaining hydrogen is (all volumes are measured at STP) _____?

H2+Cl2→2HClCl2is limiting reagent therefore 11.2 liter of react with 11.2 L of Cl2hydrogen to form 22.4 L of hydrochloric acid.Therefore,          Remaining amount of is H2 is 12-11.2=0.8L