Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Section
Chemical reactions of the alkenes
19 practice questions
Practice questions
1–3 of 3 · Hard
Question 1
2 marks · Hard
Answer and see the solution →State the products formed when pentene (C5H10) undergoes complete combustion in oxygen. Write a balanced chemical equation for the reaction.
Question 2
5 marks · Hard
Answer and see the solution →This question is about reactions of hexene (C6H12).
(a)[2 marks]Describe what happens to the C=C double bond in an addition reaction of hexene.
(b)[2 marks]State the product formed when hexene reacts with hydrogen in an addition reaction. Suggest the molecular formula of the product.
(c)[1 mark]Write a chemical equation for the complete combustion of hexene.
Question 3
2 marks · Hard
Answer and see the solution →Give a general description of what happens to an alkene during a combustion reaction. Explain why alkenes are not normally used as fuels.