Therefore, they boil at higher temperatures than the hydrocarbons and weakly
polar compounds such as ethers of comparable molecular masses The lower
members are more soluble in water because they form hydrogen bonds with water The higher members, because of large size of hydrophobic chain of carbon atoms,
are insoluble in water but soluble in common organic solvents Aldehydes are
prepared by dehydrogenation or controlled oxidation of primary alcohols and
controlled or selective reduction of acyl halides