CH3-CH2-CH2Cl +KOH(спирт.р-р)=CH3-CH=CH2 +KCl+H2O   

                                     пропен-1

 CH3-CH=CH2+HCl=CH3-CHCl-CH3

                                2-хлорпропан

CH3-CHCl-CH3+KOH(спирт.р-р)=CH2=CH-CH3+KCl+H2O

                                  пропен-1

CH2=CH-CH3+HOH=CH3-CHOH-CH3.  

                                  пропанол-2.