Осуществите превращения: C2H4 -> C4H10 -> CH3COOH -> H20 -> C2H5OH -> HCOOC2H5
C2H4+H2-->C2H6
C2H6+CL2-->C2H5CL+HCL
2C2H5CL+2Na-->C4H10 +2NaCL
C4H10--t-->C2H6+C2H4
C2H4+(O)-->CH3COH
CH3COH+Ag2O-->CH3COOH+2Ag
CH3COOH+2O2-->2CO2+2H2O
H2O+C2H4-->C2H5OH
HCOOH+C2H5OH-->HCOOC2H5