Oxidation numbers of oxides and chlorides past paper questions

Chemistry 9701 · The Periodic Table: chemical periodicity. How they change across the period

In Cambridge A Level Chemistry 9701, Oxidation numbers of oxides and chlorides came up in 15 of the 139 papers on Paperstreak, for about 2 marks a paper when it does. It last came up in October/November 2025.

Often set with Period 3 oxides and hydroxides, Particles in the atom and atomic radius, Structure and properties, Period 3 chlorides with water.

15 questions, newest first

9701/21/O/N/25 Question 2 part (b(i)) · 2 marks
9701/23/O/N/25 Question 2 part (b(i)) · 2 marks
9701/11/M/J/25 Question 24 · 1 mark
9701/21/M/J/25 Question 1 part (c) · 2 marks
9701/23/M/J/25 Question 2 part (c(i)) · 1 mark
9701/22/O/N/24 Question 2 part (a(iii)) · 2 marks
9701/23/M/J/24 Question 1 parts (b(i)) (b(ii)) · 2 marks
9701/12/M/J/23 Question 18 · 1 mark
9701/22/M/J/23 Question 2 parts (a(i)) (a(ii)) · 2 marks
9701/23/M/J/23 Question 2 parts (c(i)) (c(ii)) · 2 marks
9701/22/O/N/21 Question 2 part (a(iv)) · 1 mark
9701/22/O/N/20 Question 2 part (b) · 2 marks
9701/21/M/J/18 Question 3 part (c(i)) · 3 marks
9701/22/F/M/17 Question 1 part (a(i)) · 1 mark
9701/22/M/J/16 Question 2 part (d(i)) · 2 marks

More in The Periodic Table: chemical periodicity: Period 3 physical properties, Reactions of Period 3 elements, Period 3 oxides and hydroxides, Period 3 chlorides with water, Explaining Period 3 trends, Chemical periodicity of other elements.

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