CH4 + Br2 = CH3Br + HBr
CH3Br + NaOH = CH3OH + NaBr
CH3OH + CuO = HCOH + Cu + H2O
HCOOH + CuO = HCOOH + Cu + H2O
HCOOH + H2 = HCOH + H2O
HCOH + H2 = CH3OH
CH4 + Br2 = CH3Br + HBr
CH3Br + NaOH = CH3OH + NaBr
CH3OH + CuO = HCOH + Cu + H2O
HCOOH + CuO = HCOOH + Cu + H2O
HCOOH + H2 = HCOH + H2O
HCOH + H2 = CH3OH