a) 2C+Ca=CaC2
CaC2+2H2O=Ca(OH)2 + C2H2
C2H2 + H2O (Hg^2+, H^+)-> CH3CHO
CH3CHO+Ag2O (NH3, H2O, t)-> CH3COOH + 2Ag
CH3COOH + NaOH= CH3COONa + H2O
б) C2H4+H2O (H^+)-> C2H5OH
C2H5OH+CuO (t)-> CH3CHO
CH3CHO +Ag2O (NH3, H2O, t)-> CH3COOH + 2Ag
CH3COOH + C3H7 (H^+)-> CH3COOC3H7 + H2O