Объяснение:
CH2=CH2 + HCl -> CH3-CH2-Cl
CH3-CH2-Cl + KOH(сп) -> CH2=CH2 + KCl + H2O
CH2=CH2 -> CH=-CH + H2 (t, kat)
CH=-CH + H2O -> CH3COH (t, Hg)
