4.4—The concepts of homologous series and functional group

Understand the concepts of homologous series and functional group.

Use —the concepts of homologous series and functional group to connect the rule to the data and decision in the question.

This matters because —the concepts of homologous series and functional group determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply —the concepts of homologous series and functional group to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: —The concepts of homologous series and functional group is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.