Skip to content
Try on iPad

Inorganic chemistry and the periodic table: OCR A‑Level Chemistry B questions

Every OCR A-Level Chemistry B exam question on CI Inorganic chemistry and the periodic table (specification points CI(i)–(j)), 2016–2025, with its mark scheme and examiner’s report.

Find questions2,049
Calculations

2,049 questions

  1. Q2(b)

    June 2025 · Paper 2

    1 markCI Inorganic chemistry and the periodic table
    The whole paper ↗
    June 2025 Paper 2, question 2(b): The students make ammonia from a fertiliser containing NH4 Identify the reagent that they use. [1]

  2. Q2(d)(i)

    June 2025 · Paper 2

    1 markCI Inorganic chemistry and the periodic table
    The whole paper ↗
    June 2025 Paper 2, question 2(d)(i): Give the systematic name of NO2 [1]

  3. Q2(d)(ii)

    June 2025 · Paper 2

    3 marksCI Inorganic chemistry and the periodic table
    The whole paper ↗
    June 2025 Paper 2, question 2(d)(ii): The students add acid to NaNO2(s) in a test tube. – ions are produced. A colourless gas A (with nitrogen in the +2 oxidation state) and NO3 Gas A turns to a bro

  4. Q33(a)

    June 2024 · Paper 1

    1 markCI Inorganic chemistry and the periodic table
    The whole paper ↗
    June 2024 Paper 1, question 33(a): Give the appearance of NO2(g). [1]

  5. Q33(b)

    June 2024 · Paper 1

    2 marksCI Inorganic chemistry and the periodic table
    The whole paper ↗
    June 2024 Paper 1, question 33(b): Give the test and its result that shows that a solid contains nitrate ions. [2]

  6. Q10

    June 2023 · Paper 1

    1 markCI Inorganic chemistry and the periodic table
    The whole paper ↗
    June 2023 Paper 1, question 10: Sodium nitrate(V) is warmed with Devarda’s alloy and NaOH(aq). Which gas is released? A ammonia B nitrogen C nitrogen dioxide D nitrogen monoxide Your answer [1

  7. Q8

    June 2022 · Paper 1

    1 markCI Inorganic chemistry and the periodic table
    The whole paper ↗
    June 2022 Paper 1, question 8: What is correct about nitrogen chemistry? A The ammonia molecule has a lone pair of electrons. B The ammonium ion has a bond angle of 120°. C The ammonium ion h

  8. Q30

    June 2022 · Paper 1

    1 markCI Inorganic chemistry and the periodic table
    The whole paper ↗
    June 2022 Paper 1, question 30: Which statement(s) is/are correct about nitrogen chemistry? 1 Ammonium compounds give off ammonia when warmed with alkalis. 2 The oxide N2O is brown. 3 Nitrate(

  9. Q31(a)(i)

    November 2021 · Paper 1

    1 markCI Inorganic chemistry and the periodic table
    The whole paper ↗
    November 2021 Paper 1, question 31(a)(i): Draw a dot-and-cross diagram for a NH4 [1]

  10. Q31(a)(ii)

    November 2021 · Paper 1

    1 markCI Inorganic chemistry and the periodic table
    The whole paper ↗
    November 2021 Paper 1, question 31(a)(ii): Describe a test that students could do to confirm the presence of ammonium ions in a fertiliser. [1]

  11. Q31(b)(iii)

    November 2021 · Paper 1

    1 markCI Inorganic chemistry and the periodic table
    The whole paper ↗
    November 2021 Paper 1, question 31(b)(iii): When the oxygen concentration is low, denitrifying bacteria reduce nitrate ions to nitrogen monoxide, NO, which escapes from the soil as a gas. Describe what is

  12. Q31(c)(i)

    November 2020 · Paper 1

    2 marksCI Inorganic chemistry and the periodic table
    The whole paper ↗
    November 2020 Paper 1, question 31(c)(i): State the appearance of NO and describe what is seen as it comes out of the exhaust pipe of a car. [2]

  13. Q31(d)(ii)

    November 2020 · Paper 1

    1 markCI Inorganic chemistry and the periodic table
    The whole paper ↗
    November 2020 Paper 1, question 31(d)(ii): The ammonia produced in equation 31.1 reacts with oxygen and NO in the presence of a catalyst. Water and nitrogen are formed. Construct the equation for this re

  14. Q33(e)(ii)

    June 2019 · Paper 1

    1 markCI Inorganic chemistry and the periodic table
    The whole paper ↗
    June 2019 Paper 1, question 33(e)(ii): Describe the appearance of the atmosphere as nitrogen monoxide is converted to nitrogen dioxide. [1]

  15. Q36(a)

    June 2018 · Paper 1

    1 markCI Inorganic chemistry and the periodic table
    The whole paper ↗
    June 2018 Paper 1, question 36(a): The first step in the process of making ammonium nitrate is the synthesis of ammonia from atmospheric nitrogen. This synthesis reaction has a very high activati

  16. Q36(f)(iii)

    June 2018 · Paper 1

    2 marksCI Inorganic chemistry and the periodic table
    The whole paper ↗
    June 2018 Paper 1, question 36(f)(iii): Describe a test that would identify nitrate ions. [2]

  17. Q6

    June 2017 · Paper 1

    1 markCI Inorganic chemistry and the periodic table
    The whole paper ↗
    June 2017 Paper 1, question 6: Which statement about testing for nitrate(V) ions is correct? A They give off ammonia gas when warmed with sodium hydroxide solution. B Ammonia is detected beca
All 17 questions on Inorganic chemistry and the periodic table, as a list
  1. June 2025, Paper 2, Q2(b) (1 mark): The students make ammonia from a fertiliser containing NH4 Identify the reagent that they use. [1]
  2. June 2025, Paper 2, Q2(d)(i) (1 mark): Give the systematic name of NO2 [1]
  3. June 2025, Paper 2, Q2(d)(ii) (3 marks): The students add acid to NaNO2(s) in a test tube. – ions are produced. A colourless gas A (with nitrogen in the +2 oxidation state) and NO3 Gas A turns to a bro
  4. June 2024, Paper 1, Q33(a) (1 mark): Give the appearance of NO2(g). [1]
  5. June 2024, Paper 1, Q33(b) (2 marks): Give the test and its result that shows that a solid contains nitrate ions. [2]
  6. June 2023, Paper 1, Q10 (1 mark): Sodium nitrate(V) is warmed with Devarda’s alloy and NaOH(aq). Which gas is released? A ammonia B nitrogen C nitrogen dioxide D nitrogen monoxide Your answer [1
  7. June 2022, Paper 1, Q8 (1 mark): What is correct about nitrogen chemistry? A The ammonia molecule has a lone pair of electrons. B The ammonium ion has a bond angle of 120°. C The ammonium ion h
  8. June 2022, Paper 1, Q30 (1 mark): Which statement(s) is/are correct about nitrogen chemistry? 1 Ammonium compounds give off ammonia when warmed with alkalis. 2 The oxide N2O is brown. 3 Nitrate(
  9. November 2021, Paper 1, Q31(a)(i) (1 mark): Draw a dot-and-cross diagram for a NH4 [1]
  10. November 2021, Paper 1, Q31(a)(ii) (1 mark): Describe a test that students could do to confirm the presence of ammonium ions in a fertiliser. [1]
  11. November 2021, Paper 1, Q31(b)(iii) (1 mark): When the oxygen concentration is low, denitrifying bacteria reduce nitrate ions to nitrogen monoxide, NO, which escapes from the soil as a gas. Describe what is
  12. November 2020, Paper 1, Q31(c)(i) (2 marks): State the appearance of NO and describe what is seen as it comes out of the exhaust pipe of a car. [2]
  13. November 2020, Paper 1, Q31(d)(ii) (1 mark): The ammonia produced in equation 31.1 reacts with oxygen and NO in the presence of a catalyst. Water and nitrogen are formed. Construct the equation for this re
  14. June 2019, Paper 1, Q33(e)(ii) (1 mark): Describe the appearance of the atmosphere as nitrogen monoxide is converted to nitrogen dioxide. [1]
  15. June 2018, Paper 1, Q36(a) (1 mark): The first step in the process of making ammonium nitrate is the synthesis of ammonia from atmospheric nitrogen. This synthesis reaction has a very high activati
  16. June 2018, Paper 1, Q36(f)(iii) (2 marks): Describe a test that would identify nitrate ions. [2]
  17. June 2017, Paper 1, Q6 (1 mark): Which statement about testing for nitrate(V) ions is correct? A They give off ammonia gas when warmed with sodium hydroxide solution. B Ammonia is detected beca

Questions, mark schemes and examiner’s reports are © OCR, from their published past papers. Plumi isn’t affiliated with any exam board. Want whole papers? Every OCR A-Level Chemistry B paper.

Rather write your answers by hand on iPad? Plumi marks them against the same mark schemes.