40 ml of gaseous mixture of CO and ethyne is mixed with 100 ml of `O_2` and burnt. The volume of gases after combustion is 105 ml. The composition of the original mixture is

20 ml of a gaseous mixture of N_2 and H_2 gases is mixed with 8 ml O_2 and the mixture is fired.if the final volume becomes 13 ml the volume percent of N_2 in the original mixture is :

fifty millilitre of a mixture of CO and CH_4 was exploded with 85 ml of O_2 . The volume of CO_2 produced was 50 ml. Calculate the percentage composition of the gaseous mixture.

fifty millilitre of a mixture of CO and CH_4 was exploded with 85 ml of O_2 . The volume of CO_2 produced was 50 ml. Calculate the percentage composition of the gaseous mixture.

30 mL of a mixture of CO and CO_(2) , mixed with 10 mL of oxygen, was exploded by electric spark. The gas mixture produced was mixed with KOH solution and thoroughly shaken. 5 mL of oxygen was left behind. What was the composition of the original mixture [volume was measured at STP].

25 mL of a mixture containing nitrogenn and nitric oxide is passed over heated copper. The volume of gaseous mixture becomes 20 mL. what is the percentage composition of the original mixture. [all volumes are measrued at the same temperature].

A gaseous hydrocarbon of volume 10 mL at STP is mixed with 80 mL of O_(2) and burnt completely. As a result, the volume of the gaseous mixture was reduced to 70 mL. on treating the obtained gaseous mixture with KOH solution, the volume becomes 50 mL. determine the molecular formula of the hydrocarbon.

50 ml of a gaseous mixture of hydrogen and hydrogen chloride was exposed to sodium amalgam. The volume decreased to 40 ml. if 10 ml of the same mixture is mixed with 5 ml of gaseous ammonia and then exposed to water, what will be the final volume (in ml) of gas left ? all the volumes are measured at the same temperature and pressure.