`20cm^(3)` of gaseous hydrocarbon mixed with excess of oxygen is exploded. A contraction in the volume of `30cm^(3)` takes place. On treating the produces gaseous mixture with KOH solution, it sufffers a further contraction of 40`cm^(3)`. Determine the molecular formula of the hydrocarbon. [all volumes are measured at the same temperature and pressure].

20cm^(3) of a hydrocarbon mixed with 66cm^(3) of oxygen is exploded. After cooling the gaseous mixture, the volume becomes 56cm^(3) . The volume of this mixture when shaken with KOH solution reduces to 16cm^(3) . Determine the formula of the hydrocarbon. [all volumes are measured at the same temperature and pressure].

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.

Combustion of 1 volume of a compound (contains of C, H and N) in air produces 3 volumes of CO_(2) and 4.5 volumes water vapour and 0.5 volume of N_(2) . Calculate the molecular formula of the compound. [all volumes are measured at same temperature and pressure].

When an acetylenic hydrocarbon, in presence of excess oxygen is exploded, it shows a contraction in volume by 50 mL. a further contraction of 75 mL is observed when the obtained gas mixture comes in contact with KOH solution. Determine the molecular formula of the compound.

A mixture contains CO, CH_(4) and nitrogen. 25cm^(3) of the mixture on oxidation in presence of excess oxygen, resulted in the decrease in volume by 16cm^(3) . A further contraction of 17cm^(3) was observed when the residual gas was treated with KOH soltuion. what was the composition of the original gaseous mixture of 25cm^(3) volume? [All volumes are measured at the same temperature and pressure].

When 100 mL of ozonised oxygen is shaken with turpentine oil, volume decreases by 20 mL. when 100 mL of the same sample is heated, the mixture occupies a volume of 110 mL. determine the molecular formula of ozone. [All volumes are measured under same temperature and pressure.]

20 mL of a gaseous hydrocarbon is exploded with excess oxygen in an eudiometer tube and the contraction in volume was 70 mL. Vapour density of the hydrocarbon is 29. Find its molecular formula

10 mL of a gaseous hydrocarbon is completely combusted with 60 mL of oxygen by passing electric spark. The volume of the gaseous mixture thus yielded on cooling becomes 46 mL, iff the vapour density of the compound is 15, what will be its molecular formula? [All volumes were measured under the same conditions of temperature and pressure.]

60 mL of a mixture of CO and H_(2) , mixed with 40 mL of O_(2) , are subjected to explosion in a eudiometer tube. On cooling the gas mixture after the end of the reaction, the volume is reduced to 30 mL. determine the compostion of the gas mixture initially taken. [All volumes are measured at the same temperature and pressure].

3cm^(3) of a gaseous hydrocarbon is exploded with excess of oxygenh. On cooling the mixture, the obseved contraction is found to be 6cm^(3) . Vapour density of the hydrocarbon is 14. what is the molecular formula of the hydrocarbon.