plumiPollutants from burning alkanes: Edexcel International A Level Chemistry questions
Edexcel International A Level Chemistry past-paper questions on 4.B.3 Pollutants from burning alkanes, 2019–2025, with mark schemes and examiner’s reports where available.
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Q18(c)(ii)
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Open the full PDFYour answerQ18(d)(iv)
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All 16 questions on Pollutants from burning alkanes, as a list
- October 2024, AS Unit 1, Q18(c)(ii) (4 marks): Carbon monoxide and nitrogen monoxide are both pollutants produced in car engines. Describe how each pollutant is formed in car engines, including the condition
- October 2024, AS Unit 1, Q18(c)(iii) (1 mark): Identify another pollutant, other than carbon dioxide, carbon monoxide and nitrogen monoxide, produced in car engines. (1)
- January 2024, AS Unit 1, Q17 (1 mark): The substances formed from the combustion of petrol in car engines include A water, carbon dioxide and hydrogen B water, carbon monoxide and hydrogen chloride C
- January 2023, AS Unit 1, Q21(b)(ii) (1 mark): Identify, by name or formula, a pollutant that may result from the incomplete combustion of heptane. (1)
- January 2023, AS Unit 1, Q21(c) (2 marks): Recently, sales of electric cars have increased. Give two environmental benefits of using electric cars. Justify your answers. (2)
- January 2023, AS Unit 2, Q22(b)(i) (1 mark): Suggest one reason why CO2 is removed. (1)
- October 2022, AS Unit 1, Q6(a) (1 mark): What is the most significant hazard associated with the pollutant CO(g)? (1) A it is a major contributor to the formation of acid rain B it strongly absorbs inf
- June 2022, AS Unit 1, Q16 (1 mark): Which of these atmospheric pollutants is not emitted during the combustion of alkane car fuels? A ammonia B nitrogen dioxide C sulfur dioxide D octane
- January 2022, AS Unit 1, Q15 (1 mark): Which pollutant cannot form when alkane fuels are burned in car engines? A hydrogen chloride B sulfur dioxide C carbon particulates D carbon monoxide Use this s
- January 2022, AS Unit 2, Q24(c) (1 mark): State why NOx emissions are harmful to the environment. (1)
- October 2021, AS Unit 1, Q15(e)(ii) (2 marks): Explain the main hazard when using butane as a fuel in a portable heater in an enclosed space. (2)
- June 2021, AS Unit 1, Q21(a)(i) (1 mark): Give a reason why incomplete combustion sometimes occurs. (1)
- January 2020, AS Unit 1, Q15 (1 mark): A pure alkane fuel is burned in air. Which substance is not a possible combustion product? A H2 B H2O C CO D CO2 Use this space for any rough working. Anything
- January 2020, AS Unit 2, Q18(d)(iv) (2 marks): Give two reasons why it is important to remove nitrogen oxides from the exhaust gases of diesel engines. (2)
- June 2019, AS Unit 1, Q22(b)(i) (1 mark): Name another pollutant formed by incomplete combustion of alkanes. (1)
- January 2019, AS Unit 1, Q21(a)(iv) (2 marks): When petrol is burned in a car engine, oxides of nitrogen are formed. Explain how these compounds result in damage to trees. (2)
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