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Edexcel IGCSE Chemistry · Spec 4.17, 4.26-4.27

Cracking Conditions, Alkene Isomers and Bromine

Covers state cracking conditions precisely, Draw and name alkenes to four carbons and Predict bromine-addition products.

Chemistry revision video

Cracking Conditions, Alkene Isomers and Bromine

Spec 4.17, 4.26-4.27

What you need to know

  • State cracking conditions precisely
  • Draw and name alkenes to four carbons
  • Predict bromine-addition products

Active recall

Quick check

Answer each question before opening the answer.

Name a cracking catalyst

Silica or alumina

Name the two unbranched C4H8 alkenes

But-1-ene and but-2-ene

What is the product of ethene and bromine?

1,2-dibromoethane

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