.CH4->CH2O->CH3OH->CH3Cl->C2H6->C2H5OH->CH3COOH->CH4
1)CH4+4O2=CH2O+H2O+2O3
2)CH2O+H2=CH3OH
3)CH3OH+NaCl=CH3Cl+NaOH
4)2CH3Cl+2Na=C2H6+2NaCl
5)C2H6 + H2O = C2H5OH + H2
6)C2H5OH+O2=CH3COOH+H2O
7)CH3COOH + NaOH = CH3COONa + H2O
NaOH + CH3COONa (сплавление) --> Na2CO3+CH4