Chemistry: Hydrocarbon

Alkanes, Alkenes, Alcohols, Carboxylic acids and Esters

Hydrocarbons

Organic molecules (Simple covalent substances) that are only made up of carbon and hydrogen atoms.

Homologous Series

A family of molecules that have the same general formula, functional group and chemical properties

Functional group

Group of atoms within a molecule that give its chemical properties

Which is not a Hydrocarbon?

Alcohol, carboxylic acid and esters

Down the homologous series, does density, viscosity, MP/ BP increases or decreases?

Increases

Down the homologous series, does flammability increases or decreases?

Decrease

Why is there a gradual change in density, viscosity, MP/ BP and flammability?

The difference in physical properties (gradual change) is due to the increase in size and molecular mass of the molecules.