Carry out transformations. Ca-C2H2-C6H6-C6H6CI6.

| May 15, 2021 | education

Here are the equations:
Ca + 2C = CaC2 – the reaction of the compound proceeds when heated, calcium carbide is obtained;
CaC2 + 2H2O = Ca (OH) 2 + C2H2 – hydration of calcium carbide, the reaction proceeds under normal conditions, acetylene is formed;
3C2H2 = C6H6 – trimerization on heating, with the participation of a catalyst, benzene is released;
С6Н6 + 3Сl2 = C6H6Cl6 – the halogenation reaction occurs in the light, hexachlorobenzene is obtained.
These reactions confirm the connection between inorganic and organic substances, as well as alkynes and aromatic hydrocarbons. Substance – hexachlorobenzene (hexachlorane), the end product of the chain of transformations, is used in agriculture as an insecticide, that is, in the fight against insects.



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