1)ClCH2-CH2Cl+2KOH=C2H2+2KCl+2H2O
2)3C2H2=C6H6
3)C6H6+Cl2=C6H5Cl+HCl
C6H5Cl+2Na+Cl-CH2-CH3=C6H5-CH2-CH3+2NaCl
C6H5-CH2-CH3+KMnO4+H2SO4=C6H5-COOH+K2SO4+MnSO4+H2O
C6H5-COOH+Br2=C6H4Br-COOH+HBr
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Answers & Comments
1)ClCH2-CH2Cl+2KOH=C2H2+2KCl+2H2O
2)3C2H2=C6H6
3)C6H6+Cl2=C6H5Cl+HCl
C6H5Cl+2Na+Cl-CH2-CH3=C6H5-CH2-CH3+2NaCl
C6H5-CH2-CH3+KMnO4+H2SO4=C6H5-COOH+K2SO4+MnSO4+H2O
C6H5-COOH+Br2=C6H4Br-COOH+HBr