The empirical formula of a compound is CH2O. 0.0835 moles of the compound contains 1.0 g of hydrogen. Molecular formula of the compound is

∵ 0.0835 mole of compound contains 1 g of hydrogen∴   1 gm mole of compound contain = 10.0835=11.97=12  g  of  hydrogen.12  g  of  H2  is present in C2H12O6