Edexcel A-Level Chemistry AS 4.4 The Concepts of Homologous Series and Functional Group Questions

Use marked Edexcel IAL Chemistry questions to identify functional groups and recognise homologous-series patterns from structures, formulae and repeated CH₂ differences.

Exam points

Identify common functional groups from displayed or skeletal structures.
Recognise homologous-series membership from a shared functional group, general formula and similar reactions.
Predict a molecular formula in a homologous series using the repeated CH₂ difference.

[Maximum number: 3]

This question is about the hormone testosterone, the structure of which is shown.

Functional group 1 Functional group 2

Give the name of each of the three circled functional groups.

Functional group 1
Functional group 2
Functional group 3

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Edexcel A-Level Chemistry AS 4.4 The Concepts of Homologous Series and Functional Group Questions question 1