1)CH3CH2CHO + 2Cu(OH)2 -> CH3CH2COOH + Cu2O + 2H2O
CH3CH2COOH + Cl2 -hv-> CH3CH(Cl)COOH + HCl
CH3CH(Cl)COOH + NaOH(p-p) -> NaCl + CH3CH(OH)COOH
CH3CH(OH)COOH + CH3OH -H+,kat-> H2O + CH3CH(OH)C(=O)OCH3
2) Al4C3 + 12H2O -> 4Al(OH)3 + 3CH4
2CH4 -t-> C2H2 + 3H2
C2H2 + H2O -Hg(2+),t-> CH3CHO
3CH3CHO + 2KMnO4 -H2O-> 2CH3COOK + СH3COOH + 2MnO2 + H2O
CH3COOK + KOH -спекание-> CH4 + K2CO3