ch4->hcho ->ch3oh->ch3ce->c2h6->c2h5oh->ch3-cho->ch4

CH4 + O2 (k) -> H-COH +H2O1)H-COH + H2-> CH3-OH2)CH3-OH + HCl->CH3-Cl + H2O3)2CH3Cl + 2Na -> C2H6 + 2NaCl4)C2H6 + Cl2->C2H5Cl + HClC2H5Cl + KOH -> C2H5OH + KCl5)C2H5OH CuO-> CH3-COH + Cu + H2O6)CH3-COH + [O] -> CH3-COOHCH3-COOH + KOH -> CH3-COOK + H2OCH3-COOK + KOH (t) -> CH4 + K2CO3