Read the paragraph carefully and answer the following questions: During gas analysis, the eudiometer tube filled with mercury is inverted over a trough containing. mercury. A known volume of the gas. or gaseous mixture to be studied is next introduced, which displaces an equivalent amount of mercury. Next a known amount, of oxygen in excess is introduced and the electric spark is passed, whereby the combustible material gets oxidized. The volume of carbon dioxide, water vapour or other gaseous products of combustíon are next determined by absorbing them in suitable reagents. The various reagents used for absorbing different gases areO_(3) rarr turpentine oil O_(2) rarr alkalino pyragallol CO_(2), SO_(2) rarr alkali solution [NaOH,KOH,Ca(OH)_(2)] 16 ml of a gaseous aliphatic compound C_(3)H_(3n)O_(n) was mixed with 60 ml CO_(2) and sparked. The gas mixture on cooling occupied 44 ml. After treatment with KOH Sol. the volume of gas remaining was 12 ml. Deduce the fomula of compound