Question

Unsaturated hydrocarbons consisting of a double bond in its Carbon chain are called ______ and those consisting of a triple bond in Carbon chain are called ___.

• A. Alkenes
• B. Alkynes

Answer 1

1. Alkenes are molecules of unsaturated hydrocarbons with one or more double bonds.
2. The general formula of alkene is ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}}$.
3. Example of Alkene is Ethene (${\mathbf{C}}_{\mathbf{2}}{\mathbf{H}}_{\mathbf{4}}$).
4. Alkynes are Hydrocarbon molecules that have one or more triple bonds; they are a type of unsaturated hydrocarbon.
5. The general formula of Alkyne is ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}-2}$.
6. Example of Alkyne is Ethyne (${\mathbf{C}}_{\mathbf{2}}{\mathbf{H}}_{\mathbf{2}}$).
7. Therefore, unsaturated hydrocarbons consisting of a double bond in its Carbon chain are called ___alkenes__ and those consisting of a triple bond in the Carbon chain are called ___alkynes___.