Write the reaction equation: С2Н6-С2Н4-С2Н5Сl-C4H10-CO2

Let us write down the reaction equations for the transformation chain:
C2H6 = C2H4 + H2 – dehydrogenation reaction, ethylene was obtained;
Н2С = СН2 + HCl = H3C – CH2 – Cl – addition, chloroethane (С2Н5Cl) is released;
2C2H5Cl + 2Na = 2NaCl + C4H10 – Wurtz reaction, butane was formed;
2С4Н10 + 13О2 = 8СО2 + 10Н2О – combustion, exothermic accompanied by the release of carbon monoxide (4) and water.
The reactions confirm the bond between organic and inorganic substances, the bond between alkanes and alkenes. The end product of the transformation chain, butane, is used as a fuel.