C2H6->C2H4->C2H2->C6H6
2CH3Br +2Na-> C2H6 +2NaBr
C2H6 [Al2O3]-> C2H4+H2
C2H4 [Al2O3]-> C2H2 +H2
2C2H2[C,t ] -> C6H6
C2H6->C2H4->C2H2->C6H6
2CH3Br +2Na-> C2H6 +2NaBr
C2H6 [Al2O3]-> C2H4+H2
C2H4 [Al2O3]-> C2H2 +H2
2C2H2[C,t ] -> C6H6