С2H4+CL2=C2H4Cl2
C2H4Cl2+2NaOH(спирт)=C2H2+2NaCl+2H2O
3C2H2=(t,C)=C6H6
C6H6+CH3Cl=(AlCl3)=C6H5CH3+HCl
C6H5CH3+KMnO4+H2SO4=C6H5COOH+K2SO4+MnSO4+H2O (Уравняй сама)
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С2H4+CL2=C2H4Cl2
C2H4Cl2+2NaOH(спирт)=C2H2+2NaCl+2H2O
3C2H2=(t,C)=C6H6
C6H6+CH3Cl=(AlCl3)=C6H5CH3+HCl
C6H5CH3+KMnO4+H2SO4=C6H5COOH+K2SO4+MnSO4+H2O (Уравняй сама)