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Edexcel A-Level Chemistry AS 4.10 The Term Structural Isomerism Questions

Keep the molecular formula unchanged, alter atom connectivity, verify carbon valencies and compare names or structures to ensure each candidate is distinct.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
AS

Exam points

  • Define structural isomers as sharing a molecular formula but differing in connectivity.
  • Draw missing skeletal or displayed structures for chain, position or functional isomers.
  • Count distinct structural isomers while excluding duplicates and geometric variants.

Edexcel A-Level Chemistry AS 4.10 The Term Structural Isomerism Questions question 1

[Maximum number: 4]

This question is about alkenes.

A straight-chain alkene, X, has the structure shown.

Figure for Question Edexcel A-Level Chemistry AS 4.10 The Term Structural Isomerism Questions question 1 — Edexcel A-Level Chemistry AS

Draw the skeletal formulae of the four structural isomers of X that are alkenes. Do not include geometric isomers.

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