Make the equation: Methane – acetylene – benzene – carbon dioxide

Let’s carry out the solution of the chain of transformations for organic substances:
1. 2CH4 = C2H2 + 3H2 – the reaction of decomposition of methane, acetylene and hydrogen are formed;
2. 3C2H2 = C6H6 – trimerization occurs at a temperature of 500 degrees, in the presence of a carbon catalyst, benzene is released;
3. С6Н6 + 9О2 = 6СО2 + 6Н2О – combustion of benzene, carbon dioxide and water are formed.
These reactions show the relationship between organic and inorganic compounds, as well as the relationship between the classes of hydrocarbons. Each reaction is of practical importance, for example, the combustion of benzene confirms its use as an additive in motor fuel for ignition.