Question

Give the products formed when:

Acetylene is heated in red hot copper tube___________.

Answer 1

1. The IUPAC name of Acetylene$\mathbf{(}\mathbf{CH}\mathbf{\equiv }\mathbf{CH}\mathbf{)}$ is Ethyne and is from the alkyne group.
2. Ethyne or Acetylene$\mathbf{(}\mathbf{CH}\mathbf{\equiv }\mathbf{CH}\mathbf{)}$ is an unsaturated hydrocarbon.
3. When this Acetylene$\mathbf{(}\mathbf{CH}\mathbf{\equiv }\mathbf{CH}\mathbf{)}$ is passed through a red hot copper tube then the product formed is Benzene$\mathbf{\left(}{\mathbf{C}}_{\mathbf{6}}{\mathbf{H}}_{\mathbf{6}}\mathbf{\right)}$.
4. The chemical reaction occurs as follows:
   $\underset{\left(\mathrm{Acetylene}\right)}{3\mathrm{CH}\equiv \mathrm{CH}\left(\mathrm{g}\right)}\underset{\mathrm{Copper}\mathrm{tube}}{\overset{\mathrm{Red}\mathrm{hot}}{\to }}{\mathrm{C}}_6{\mathrm{H}}_6\left(\mathrm{l}\right)$
5. The temperature of the reaction is about$373\mathrm{K}$
6. Hence, we conclude that when Acetylene is heated in red hot copper tube, forms Benzene.