А:
Al4C3+12H2O--->3CH4+4Al(OH)3
CH4+Cl2--->CH3Cl+HCl
2CH3Cl+2Na--->C2H6+2NaCl
C2H6--->C2H4+H2
C2H4+H2O--->C2H5OH
Б)
C3H8+Cl2--->C3H7Cl+HCl
2C3H7Cl+2Na--->C6H14+2NaCl
H3C-CH2-CH2-CH2-CH2-CH3--[t]-->H2C=CH-CH2-CH2-CH2-CH3+H2
H2C=CH-CH2-CH2-CH2-CH3+Cl2--->H2C-CH(Cl)-CH2-CH2-CH2-CH3+HCl