Draw up the reaction equation with which you can carry out the transformations C2H6-C2H5CL -C2H4-C2H5OH-CH2 = CH-CH = CH2

Let’s compose the reaction equations for hydrocarbons:
C2H6 + Cl2 = C2H5Cl + HCl – substitution reaction, chloroethane was obtained;
С2Н5Cl + KOH = C2H5 – OH + KCl – exchange, ethanol is released;
C2H5 – OH = C2H4 + H2O – dehydration, ethene was formed;
C2H4 + H2O = C2H5 – OH – hydration, ethanol was obtained;
C2H5 – OH + HCl = C2H5Cl + H2O – exchange, chloroethane was released;
2С2Н5Cl + 2Na = C4H10 + 2NaCl – Wurtz reaction, butane obtained;
C4H10 = C4H8 + H2 – dehydrogenation, butene evolved;
СН3 – СН2 – СН = СН2 = Н2 + СН2 = СН – СН = СН2 – dehydrogenation, butadiene was obtained.
These reactions confirm the connection between hydrocarbons and alcohols. Butadiene serves as the basis for the synthesis of butadiene rubber.