1o and 2o amines are separated by using Hinsberg reagent (PhSO2Cl).
Ethanal and ethanol are separated by using NaHSO3
(C2H5)2NH and butanol are separated by using Dil. H2SO4 and steam distillation.
(C2H5)2C=O and CH3COOH are separated by using dil. NaOH and distillation.