CH4-CH3Br-C2H6-C2H5Br-C2H5OH-CO2 осуществить превращения
СH4 + Br2 -> CH3Br + HBr CH3Br + 2Na + Br-CH3 -> CH3-CH3 + 2NaBr CH3-CH3 + Br2 -> CH3-CH2Br + HBr CH3CH2Br + NaOH -> CH3CH2OH + NaBr CH3-CH2OH +3 O2 -> 2CO2 + 3H2O