On complete combustion, 0.246 g of an organic compound gave 0.198 g of carbon dioxide and 0.1014 g of water. The percentage composition of carbon and hydrogen in the compound respectively are

Given mass of CO2 = 0.198 g and mass ofH2O=0.1014 g As we know % of C=1244×wt of CO2WT of organic compound×100 Percentage of carbon =12×0.198×10044×0.246=21.95%Also, H=218×wt of H2Owt of organic compound×100 Percentage of hydrogen =2×0.1014×10018×0.246=4.58%