Figure 1: The first four alkanes. Each carbon forms 4 bonds (single bonds only) β either to other carbons or to hydrogens. This "saturated" structure makes alkanes relatively unreactive.
This diagram covers Alkane Structures β First Four Members within Alkanes for GCSE Chemistry. Topic 38: Alkanes It is section 2 of 12 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.
Practice questions for Alkanes
What is the general formula for the alkane homologous series?
Explain why the boiling point of alkanes increases as the chain length increases.