`C_2H_5O_2N` on reaction with Sn and conc. HCL gives a compound 'B' which when treated with `NaNO_2`and HCL gave the compound 'C' having M.F `C_2H_6O`.Then compound 'C ' when treated with 'Na' metal gives effervescence and when react with `CrO_3`gives a saturated aldehyde.Determine structures and name of A, B,C.

A compound 'A' having molecular formula C_(2)H_(5)O_(2)N , on reaction with Sn and conc. HCl gives a compound B which when treated with NaNO_(2) and dil. HCl gave compound C having molecular formula C_(2)H_(6)O . The compound C when treated with Na metal give effervescenes and when reacts with CrO_(3) give a saturated aldehyde having 2 carbon atoms. Determine the structures and names of A, B and C along with the sequence of reactions.

A compound A of molecular formula C_(3)H_(7)O_(2)N on reaction with iron and concentrated HCl gives a compound B of molecular formula C_(3)H_(9)N . Compound B on treatment with NaNO_(2) and HCl gives another compound C of molecular formula C_(3)H_(8)O . Compound C gives effervescence with sodium. On oxidation with CrO_(3) , compound C gives a saturated aldehyde containing three carbon atoms. Deduce the structures of compounds A, B and C and write the equations of the reactions involved.