1.осуществите превращение СH4>CH3Br>CH3OH>HCOH 2.осуществите превращениеCH3COH>CH3COOH>CH3COONa
СH4>CH3Br>CH3OH>HCOH CH4+Br2=CH3Br+HBr CH3Br+H2O=CH3OH+HBr CH3OH=HCOH+H2 CH3COH>CH3COOH>CH3COONa CH3COH+H2O=CH3COOH+H2 2CH3COOH+2Na=2CH3COONa+H2