IB Chemistry SL 3.2.5 IUPAC Nomenclature

Practise constructing systematic names from organic structures with up to six carbons and one functional-group type. Select the correct parent chain, give the principal group the…

Syllabus
First assessment 2025
Objective
3.2.5
Level
SL

Exam points

  • choose the longest valid parent chain containing the principal functional group
  • number the chain to give the principal group and substituents the required locants
  • assemble prefixes, multiplicative terms, punctuation and suffixes into a systematic name

3.2.5—IUPAC nomenclature question 1

[Maximum number: 1]

Alkenes, such as A (shown below), are important intermediates in the petrochemical industry because they undergo addition reactions to produce a wide variety of products, such as the conversion shown below.

Figure for Question 3.2.5—IUPAC nomenclature question 1 — IB Chemistry SL

Applying IUPAC rules, state the name of A.

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