Write the reaction equation: Chloromethane-ethane-ethylene-ethanol-acetic acid-chloroacetic acid

1) CH3-Cl + 2Na + Cl-CH3 -> CH3-CH3 + 2NaCl; 2) CH3-CH3 -> CH2 = CH2 + H2 (reaction conditions: temperature 300 degrees, catalyst Pt); 3) CH2 = CH2 + H2O -> CH3-CH2OH (the reaction proceeds in the presence of sulfuric acid – H + above the arrow); 4) CH3-CH2OH + O2 -> CH3-COOH + H2O (the reaction proceeds with the participation of the enzyme alcohol dehydrogenase); 5) CH3-COOH + Cl2 -> CH2Cl-COOH + HCl (the reaction catalyst is acetic anhydride).