Составить уравнения реакции CH4=>C+H2
CH4 -> CH3Br -> C2H6 -> C2H4 -> C2H2 -> C6H6 CH4+Br2[свет] -> CH3Br+HBr 2CH3Br +2Na-> C2H6 +2NaBr C2H6 [Al2O3]-> C2H4+H2 C2H4 [Al2O3]-> C2H2 +H2 2C2H2[C,t ] -> C6H6