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Edexcel A-Level Chemistry AS 5.1 The General Formula of Alkenes and Understand That Alkenes and Cycloalkenes Are Hydrocarbons Which Are Unsaturated Have Questions

Count sigma bonds along each internuclear axis and pi bonds above and below the plane, then use ring and double-bond unsaturation to verify the molecular formula.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
AS

Exam points

  • Count sigma and pi bonds from displayed or skeletal alkene structures.
  • Compare head-on sigma overlap with sideways pi overlap above and below the bond axis.
  • Apply alkene and cycloalkene general formulae to molecular and empirical formulae.

Edexcel A-Level Chemistry AS 5.1 The General Formula of Alkenes and Understand That Alkenes and Cycloalkenes Are Hydrocarbons Which Are Unsaturated Have Questions question 1

[Maximum number: 1]

Geometric isomerism is shown by 2-chlorobut-2-ene.

What is the total number of sigma bonds in Z-2-chlorobut-2-ene?

A

3

B

4

C

10

D

11

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