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CAIE A-Level Chemistry AS 13.4.1 Structural Isomerism and Its Division Questions

Practise defining structural isomerism and classifying chain, positional and functional-group isomers from molecular, displayed and skeletal formulae in CAIE 9701 questions.

Syllabus
2028–2030
Course
Chemistry 9701
Level
AS

Exam points

  • define structural isomers by checking for the same molecular formula but different structural formulae
  • classify chain isomers from changes in the carbon skeleton and positional isomers from the location of a functional group or multiple bond
  • identify functional-group isomers when the same atom totals form different functional groups, using displayed or skeletal formulae

CAIE A-Level Chemistry AS 13.4.1 Structural Isomerism and Its Division Questions question 1

[Maximum number: 1]

Organic compounds can be distinguished using chemical tests and analytical techniques.

Table 3.1 shows four pairs of organic compounds.

Table 3.1

Table 3.1

A1 and A2 are structural isomers.

Define structural isomers.

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