CH4 -> CH3Br -> C2H6 -> C2H4 -> C2H2 -> C6H6
<span>CH4+Br2[свет] -> CH3Br+HBr </span>
<span>2CH3Br +2Na-> C2H6 +2NaBr </span>
<span>C2H6 [Al2O3]-> C2H4+H2 </span>
<span>C2H4 [Al2O3]-> C2H2 +H2 </span>
2C2H2[C,t ] -> C6H6<span>
</span>
Объем любого газа при н.у равен 22,4 л.