1)ch4-ch3cl-c2h6-c2h5cl-c3h8 2)c-ch4-ch3cl-c2h6-c2h5br 3)c-ch4-c2h6-c2h4-c2h5oh-c2h5ona

1) СН4 + СL2 = СН3СL + НСL
2СН3СL + 2Nа = С2Н6+ 2NаСL

С2H6 + Cl2= C2H5Cl + HCl 
C2H5Cl + CH3I + 2Na= C3H8 + NaCl + NaI

2) C+2H2 = CH4
CH4+Cl2 = CH3Cl+HCl 
2CH3Cl+2Na = C2H6+2NaCl

C2H6 + Br2 = C2H5Br + HBr

3) C + 2H2 = CH4

2CH4 = C2H2 + 3H2
C2H2 + 2H2 = C2H6
C2H6 = C2H4 + H2
C2H4 + H2O = C2H5OH
2C2H5OH + 2Na = 2C2H5ONa + H2