Alkenes past paper questions

O Level Chemistry 5070 · Organic chemistry. 1 State that the bonding in alkenes includes a double carbon–carbon covalent bond and that alkenes are unsaturated hydrocarbons 2 Describe the manufacture of alkenes and hydrogen by the cracking of larger alkane molecules using a high temperature and a catalyst 3 Describe the reasons for the cracking of larger alkane molecules 4 Describe the test to distinguish between saturated and unsaturated hydrocarbons by their reaction with aqueous bromine 5 State that in an addition reaction only one product is formed 6 Describe the properties of alkenes in terms of addition reactions with: (a) bromine or aqueous bromine (b) hydrogen in the presence of a nickel catalyst (c) steam in the presence of an acid catalyst and draw the structural or displayed formulae of the products

In Cambridge O Level Chemistry 5070, Alkenes came up in 38 of the 72 papers on Paperstreak, for about 2 marks a paper when it does. It last came up in October/November 2025.

Often set with Formulae, functional groups and terminology, Fuels, Polymers, The mole and the Avogadro constant.

53 questions, newest first

5070/11/O/N/25 Question 34 · 1 mark
5070/12/O/N/25 Question 34 · 1 mark
5070/21/O/N/25 Question 6 part (d) · 2 marks
5070/21/O/N/25 Question 7 parts (a(i)) (a(ii)) (d(i)) (d(ii)) · 5 marks
5070/22/O/N/25 Question 8 parts (a) (b) · 3 marks
5070/11/M/J/25 Question 36 · 1 mark
5070/12/M/J/25 Question 34 · 1 mark
5070/21/M/J/25 Question 8 parts (a(i)) (a(ii)) · 3 marks
5070/22/M/J/25 Question 3 part (a) · 1 mark
5070/11/O/N/24 Question 32 · 1 mark
5070/11/O/N/24 Question 33 · 1 mark
5070/11/O/N/24 Question 35 · 1 mark
5070/12/O/N/24 Question 36 · 1 mark
5070/21/O/N/24 Question 4 parts (b(i)) (c(ii)) (e(ii)) · 4 marks
5070/22/O/N/24 Question 4 parts (c(ii)) (e) · 3 marks
5070/21/M/J/24 Question 2 parts (c(ii)) (c(iii)) · 2 marks
5070/12/O/N/23 Question 17 · 1 mark
5070/21/O/N/23 Question 5 parts (b(i)) (b(ii)) · 2 marks
5070/22/O/N/23 Question 5 parts (a(i)) (a(ii)) · 3 marks
5070/12/M/J/23 Question 36 · 1 mark
5070/22/M/J/23 Question 7 parts (c(i)) (d(i)) (d(ii)) · 3 marks
5070/21/O/N/22 Question 1 part (a) · 1 mark
5070/21/O/N/22 Question 3 parts (b(ii)) (c) · 4 marks
5070/22/O/N/22 Question 3 parts (d(i)) (d(ii)) · 3 marks
5070/12/M/J/22 Question 34 · 1 mark
5070/12/M/J/22 Question 35 · 1 mark
5070/21/M/J/22 Question 8 parts (c) (d(i)) · 4 marks
5070/11/O/N/21 Question 37 · 1 mark
5070/11/O/N/21 Question 38 · 1 mark
5070/12/O/N/21 Question 37 · 1 mark
5070/21/O/N/21 Question 4 parts (a) (b(i)) (b(ii)) · 4 marks
5070/21/O/N/21 Question 8 part (a) · 1 mark
5070/22/O/N/21 Question 4 parts (c(i)) (c(ii)) · 3 marks
5070/22/O/N/21 Question 8 part (b) · 1 mark
5070/11/M/J/21 Question 36 · 1 mark
5070/12/M/J/21 Question 36 · 1 mark
5070/21/M/J/21 Question 1 part (a(iv)) · 1 mark
5070/21/M/J/21 Question 3 parts (a(iii)) (b(v)) · 3 marks
5070/21/M/J/21 Question 9 parts (a) (b) · 3 marks
5070/22/M/J/21 Question 1 part (a(iv)) · 1 mark
5070/22/M/J/21 Question 5 part (b(ii)) · 1 mark
5070/22/M/J/21 Question 9 part (b) · 1 mark
5070/11/O/N/20 Question 17 · 1 mark
5070/11/O/N/20 Question 35 · 1 mark
5070/12/O/N/20 Question 35 · 1 mark
5070/12/O/N/20 Question 36 · 1 mark
5070/21/O/N/20 Question 2 parts (e(i)) (e(ii)) · 2 marks
5070/22/O/N/20 Question 5 parts (a(i)) (a(ii)) (b(ii)) · 3 marks
5070/11/M/J/20 Question 34 · 1 mark
5070/11/M/J/20 Question 35 · 1 mark
5070/12/M/J/20 Question 35 · 1 mark
5070/21/M/J/20 Question 10 part (c(iii)) · 1 mark
5070/22/M/J/20 Question 10 part (c(ii)) · 2 marks

More in Organic chemistry: Formulae, functional groups and terminology, Naming organic compounds, Fuels, Alkanes, Alcohols, Carboxylic acids, Polymers.

Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.