Ch4-ch3cl-c2h6-ch3coh-ch3cooh-co2
1) CH4+Cl2=(свет)=СН3Cl+HCl 2)2CH3Cl+2Na=(t)=С2Н6+2NaCl 3)C2H6+H2O=(HgSO4)=CH3OH 4)CH3OH=(окисление)=СН3СООН 5)CH3COOH+3O2=2CO2+2H2O