Question

What is the general formula of an unsaturated hydrocarbon?

Answer 1

A hydrocarbon is an organic molecule made completely of hydrogen and carbon in organic chemistry. Hydrocarbons are an example of hydrides in group 14. Hydrocarbons are colourless, hydrophobic, and have just a faint odour. It's impossible to generalise further due to their varied molecular architectures. The burning of fossil fuels, including fuel production and combustion, accounts for the majority of anthropogenic hydrocarbon emissions. The emissions of plants are a natural supply of hydrocarbons such ethylene, isoprene, and monoterpenes.

Complete answer:
Hydrocarbons with double or triple covalent connections between neighbouring carbon atoms are known as unsaturated hydrocarbons. The term "unsaturated" refers to the possibility of adding extra hydrogen atoms to a hydrocarbon to make it saturated (i.e. consisting of all single bonds). Straight chains, such as alkenes and alkynes, as well as branched chains and aromatic compounds, are examples of unsaturated carbons. Unsaturated hydrocarbons, with the exception of aromatic molecules, are mostly reactive and undergo numerous reactions due to their multiple bonds.
An alkene is a hydrocarbon with a carbon–carbon double bond in chemistry. Alkene is frequently used interchangeably with olefin, which refers to any hydrocarbon with one or more double bonds.
General formula for alkenes ${{C}_{n}}{{H}_{2n}}$
An alkyne is an unsaturated hydrocarbon with at least one carbon—carbon triple bond in organic chemistry. With only one triple bond and no additional functional groups, the simplest acyclic alkanes form a homologous series with the general chemical formula ${{C}_{n}}{{H}_{2n-2}}$

Note:
Two opposing variables govern the melting and boiling temperatures of unsaturated hydrocarbons compared to saturated hydrocarbons. The strength of the Van der Waals force, on the one hand, is proportional to the number of electrons in a molecule. Because unsaturated hydrocarbons contain fewer electrons than saturated hydrocarbons, their boiling and melting points may fall as the intermolecular force falls. The delocalized electrons found in unsaturated hydrocarbons, on the other hand, make electron transport within one molecule simpler, making transient dipoles easier to create. As a result of electron delocalization, the Van der Waals force may also rise.