Alkanes, also known as paraffins, are a class of hydrocarbons characterized by straight or branched chains of carbon atoms connected exclusively by single covalent bonds. Their general molecular formula is CₙH₂ₙ₊₂, where ‘n’ represents the number of carbon atoms. Alkanes are saturated compounds, meaning they contain the maximum number of hydrogen atoms possible for a given number of carbon atoms. This stability makes them relatively unreactive compared to other hydrocarbon families, such as alkenes and alkynes. Alkanes are found in natural sources, such as natural gas and petroleum, and are crucial as fuels and lubricants in various industrial applications. With an increasing chain length, they exhibit distinct physical properties, such as boiling and melting points, which influence their state at room temperature—ranging from gases (like methane) to liquids (like hexane) and solids (like paraffin wax). The study of alkanes is fundamental in organic chemistry, serving as a foundation for understanding more complex chemical behavior.