Question

Ch4→hcoh→ch3oh→ch3cl→c2h6

Answer 1

1) Есть два способа получения формальдегида:

1. CH₄ + O₂ →(450°, AlPO₄) HCOH + H₂O

2. 2CH₄ + 2Cl₂ → 2CH₃Cl + 2HCl

CH₃Cl + NaOH → CH₃OH + NaCl

CH₃OH →400° HCOH + H₂

2) HCOH + Н₂ → СН₃ОН

3) СН₃ОН + KCl → KOH + CH₃Cl

4) 2CH₃Cl + 2Na → C₂H₆ + 2NaCl

Answer 2

The given reaction sequence involves several steps of organic chemistry reactions. Here is a brief description of each step:

1. CH4 → HCOH: This is a reaction known as oxidative coupling of methane, which involves the reaction of methane with oxygen to produce formaldehyde. The reaction is typically carried out at high temperatures and pressures.

2. HCOH → CH3OH: This is a reduction reaction, in which formaldehyde is reduced to methanol. The reduction can be carried out using a variety of reducing agents, including hydrogen gas, sodium borohydride, or lithium aluminum hydride.

3. CH3OH → CH3Cl: This is a substitution reaction, in which methanol is treated with hydrochloric acid to produce methyl chloride. The reaction is typically carried out at high temperatures and pressures.

4. CH3Cl → C2H6: This is a reaction known as the Wurtz reaction, which involves the reaction of two molecules of methyl chloride to produce ethane. The reaction is typically carried out in the presence of a strong base, such as sodium or potassium hydroxide.

Overall, the given reaction sequence involves a series of complex organic chemistry reactions, each of which requires careful control of reaction conditions and reagents to achieve the desired outcome.