А) CH2=CH2 -> CH=-CH + H2 (kat)
CH=-CH + H2O -> CH3COH (t, Hg)
CH3COH + H2 -> CH3-CH2-OH
CH3-CH2-OH + CuO -> CH3-COH + Cu + H2O
CH3COH + Ag2O -> CH3COOH + 2Ag
б) CaC2 + H2O -> Ca(OH)2 + CH=-CH
CH=-CH + H2O -> CH3COH (t,Hg)
CH3COH + Ag2O -> CH3COOH + 2Ag