Verified answer

Цепочка первая)

1)                   t

 2CH4 --------------- > C2H2 + 3H2↑

2)

                           HgSO4,t

3) C2H2 + H2O --------------> CH3COH

4) CH3COH + H2 ----------- > CH3-CH2-OH

5) CH3-CH2-OH + HBr ------ > CH3-CH2-Br + H2O

6) CH3-CH2-Br + KOH ----- > CH3-CH2-OH + KBr

                                       KMnO4,t

7) CH3-CH2-OH + [O] ------------- > CH3-COOH + H2

Цепочка вторая)

1)                             Kt,t

CH4 + O2(возд) ------------ > HCOH + H2O

2) HCOH + H2 ------------ > CH3OH

3) CH3OH + HCl ------- > CH3Cl + H2O

4) 2CH3Cl + 2Na ------ > C2H6 + 2NaCl

5) C2H6 ------- > C2H4 + H2

   C2H4 + H2O ---- > C2H5OH

                              KMnO4,t

6) C2H5OH + [O] ------------- > CH3-COOH + H2