А) 2CH4 --- C2H2 + 3H2
CH≡CH + H2O ---- CH3-COH
CH3-COH + H2 ---- CH3-CH2-OH
CH3-CH2-OH + HBr --- CH3-CH2Br + H2O
CH3-CH2Br + KOH(спиртовой) ---- CH2=CH2 + KBr + H2O
CH2=CH2 + H2O ---- CH3-CH2OH
CH3-CH2OH + CuO ----- CH3-COH + Cu + H2O
б) CH4 + O2 --(t, катализатор)---- H-COH + H2O
H-COH + H2 ---- CH3-OH
CH3-OH + HCl ---- CH3Cl + H2O
2CH3Cl + 2Na ---- CH3-CH3 + 2NaCl
2СH3-CH3 + O2 ---(t, катализатор)---- 2CH3-CH2OH
CH3-CH2OH + O2 ---(катализатор)--- CH3-COOH + H2O