Объяснение:
СH3-CH3 + Cl2 -> CH3-CH2-Cl + HCl
CH3-CH2-Cl + KOH-> CH2=CH2 + KCl + H2O
CH2=CH2 + H2O-> CH3-CH2-OH
CH3-CH2-OH + OH-CH3 -> CH3-CH2-O-CH3 + H2O
