Осуществить превращения CH4>C2H2>C2H4>C2H5OH>CH3-COH>CH3-COOH>Cl-CH2-COOH>NH2-CH2-COOH
2CH4=C2H2+3H2 C2H2+H2=C2H4 C2H4+H2O=C2H5OH C2H5OH+CuO=CH3CHO+Cu+H2O CH3CHO+Ag2O=CH3COOH+2Ag CH3COOH+Cl2=ClCH2COOH+HCl ClCH2COOH+NH3=NH2CH2COOH+HCl