1. 2CH₄ → C₂H₂ + 3H₂
2. C₂H₂ + H₂ → (t°C, Ni) C₂H₄
3. C₂H₄ + H₂ → C₂H₆
4. C₂H₆ + HI → C₂H₅I + H₂ ↑
5. C₂H₅I + NaOH → C₂H₅OH + NaI
6. C₂H₅OH + CuO → CH₃CHO + Cu + H₂O
7. CH₃CHO + Ag₂O → CH₃COOH + 2Ag
1. 2CH₄ → C₂H₂ + 3H₂
2. C₂H₂ + H₂ → (t°C, Ni) C₂H₄
3. C₂H₄ + H₂ → C₂H₆
4. C₂H₆ + HI → C₂H₅I + H₂ ↑
5. C₂H₅I + NaOH → C₂H₅OH + NaI
6. C₂H₅OH + CuO → CH₃CHO + Cu + H₂O
7. CH₃CHO + Ag₂O → CH₃COOH + 2Ag