2CH4 =(1500)= C2H2 + 3H2 C2H2 + 2Na = Na2C2 + H2 Na2C2 + 2CH3Cl = C4H6 + 2NaCl 5C4H6 + 6KMnO4 + 9H2SO4 = 10CH3COOH + 3K2SO4 + 6MnSO4 + 4H2O CH3COOH + Cl2 =(свет)= ClCH2COOH + HCl