Write the reaction equation: CH4 – C2H2 – C2H4 – C2H5Br. Give names to the starting materials.

Let’s compose the reaction equations for hydrocarbons:
2СН4 = С2Н2 + 3Н2 – methane cracking occurs at a temperature of 1500 degrees, the reaction catalyst is coal;
C2H2 + H2 = C2H4 – acetylene enters into a hydrogenation reaction, that is, the addition of hydrogen, the reaction proceeds when heated, with the participation of a Pt catalyst;
Н2С = СН2 + Br2 = H2C – Br – CH2Br – ethylene participates in the halogenation reaction, adding bromine, 1,2 dibromoethane is obtained.
Reaction products find practical applications. Methane and acetylene are fuels. Ethylene and bromoethane are used to produce alcohols.