Write the reaction equations: C2H5CL- C2H4- C2H5OH- butadiene 1,3- rubber

Let us indicate the names of substances in the chain of transformations:

Ethane chloride – ethylene – ethanol – butadiene -1,3 – butadiene rubber.
Let us write down the equations of the processes:
C2H5Cl + KOH = C2H5OH + KCl – exchange, ethanol was formed;

С2Н5ОН = Н2О + Н2С = СН2 – dehydration, ethylene was obtained;

С2Н4 + Н2О = СН3 – СН2 – ОН – hydration, ethyl alcohol is released;

2C2H5OH = H2C = CH – CH = CH2 + 2H2O + H2 – hydration, dehydrogenation, butadiene -1.3 (divinyl) was obtained;

n (H2C = CH – CH = CH2) = (-CH2 – CH = CH – CH2-) n – polymerization, butadiene rubber was formed.