Al4C3 - CH4 - CH3Cl - CH3OH - CH3Br
Al4C3 + 12 H2O = 4 Al(OH)3 + 3 CH4 ↑
CH4 + Cl2 = CH3Cl + HCl
CH3Cl + NaOH = CH3OH + NaCl
CH3OH + HBr = CH3Br + H2O
C2H4 - C2H5OH - C2H5Br - HBr - MnBr2
C2H4 + Н2О = С2Н5ОН
С2Н5ОН + НВr = C2H5Вr + H2O
C2H5Br + H2 t° = C2H6 ↑ + HBr ↑
Mn(OH)2 + 2 HBr = MnBr2 + 2 H2O