СH3-CH3 + Cl2 -> CH3-CH2-Cl + HCl (hy)
CH3-CH2-Cl + KOH -> CH2=CH2 + KCl + H2O (t)
CH2=CH2 + Cl2 -> CH2(Cl)-CH2(Cl)
CH2(Cl)-CH2(Cl) + 2KOH -> 2KCl + 2H2O + CH=-CH
СH3-CH3 + Cl2 -> CH3-CH2-Cl + HCl (hy)
CH3-CH2-Cl + KOH -> CH2=CH2 + KCl + H2O (t)
CH2=CH2 + Cl2 -> CH2(Cl)-CH2(Cl)
CH2(Cl)-CH2(Cl) + 2KOH -> 2KCl + 2H2O + CH=-CH