Write the equation: C2H6 – C2H4 – C2H2 – C6H6

Let us write down the reaction equations for organic compounds:
C2H6 = C2H4 + H2 – dehydrogenation reaction, ethylene is formed;
C2H4 = C2H2 + H2 – dehydrogenation, obtained acetylene;
3С2Н2 = С6Н6 – the reaction is possible when heated on a carbon catalyst, trimerization occurs, benzene is obtained.
The reaction products are hydrocarbons of practical importance. Ethylene is used to produce polyethylene, acetylene is used in metal welding, benzene is an additive to motor fuel. The reactions show the bond of alkanes, alkenes, alkynes, aromatic hydrocarbons.