1) C₂H₄ + H₂O → C₂H₅OH
CH₃ - CH₂ - OH →(t°, Cu) CH₃ - CHO + H₂
2) C2H5OH+CuO → Cu+H2O+CH3COHCH3COH+Ag2O → 2Ag+CH3COOH
3) C6H5CH3 +Сl2 → C6H5CH2Cl+HClC6H5CH2Cl+H2O → C6H5CH2OH+HCl
4) CH3COH+H2(в присутствии Pt) → C2H5OHC2H5OH(при t и в присутствии H2SO4(конц)) → С2H4+H2O
5) CH≡CH + H2O (Hg²⁺) → CH3-COHCH3-COH + 2[Ag(NH3)2]OH (t) → CH3-COOH + 2Ag + 4NH3 + H2O
6) C2H4BR2 + 2KOH(спиртовой) → C2H2 + 2KBR + 2H2OC2H2 + H2O (Hg²⁺) → CH3-CHO
7) C4H8Cl + KOH (водный) → C4H9OH + KCl