2CH4 -> (t°, làm lạnh nhanh) C2H2 + 3H2
C2H2 + H2 -> (t°, xt, Pd) C2H4
C2H4 + HCl -> (askt) C2H5Cl
C2H5Cl + NaOH -> C2H5OH + NaCl
\(2CH_4\underrightarrow{t^o}C_2H_2+3H_2\)
\(C_2H_2\underrightarrow{t^o,xt,p}C_4H_4\)
\(C_4H_4+HCl\rightarrow C_2H_5Cl+C_2\)
\(C_2H_5Cl+NaOH\rightarrow C_2H_5OH+NaCl\)
\(2CH_4\underrightarrow{1500^oC,làm.lạnh.nhanh}CH\equiv CH+3H_2\)
\(CH\equiv CH+H_2\underrightarrow{t^o,Pd/PbCO_3}CH_2=CH_2\)
\(CH_2=CH_2+HCl\rightarrow CH_3-CHCl\)
\(CH_3-CH_2Cl+NaOH\underrightarrow{t^o}CH_3-CH_2OH\)
