plumiInfrared radiation and global warming: OCR A‑Level Chemistry A questions
OCR A-Level Chemistry A past-paper questions on 4.2.4.1 Infrared radiation and global warming, 2016–2025, with mark schemes and examiner’s reports where available.
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Open the full PDFYour answerQ6(b)(i)
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All 8 questions on Infrared radiation and global warming, as a list
- June 2025, Paper 2, Q12 (1 mark): Which process does not involve infrared radiation? A Catalytic ozone depletion B Monitoring toxic gases in the air C Measuring ethanol in breathalyser tests D G
- June 2025, AS Paper 2, Q6(b)(i) (1 mark): State the effect infrared radiation has on covalent bonds. [1]
- June 2024, Paper 2, Q7 (1 mark): Which statement gives a valid scientific reason for global warming? A Infrared radiation causes bonds in CH4 molecules to vibrate more. B Infrared radiation cau
- June 2024, AS Paper 1, Q19 (1 mark): Which statement about infrared radiation (IR) is not correct? A Absorption of IR by molecules such as CO2, H2O and CH4 has been linked to global warming. B IR c
- June 2022, Paper 2, Q2 (1 mark): Which statement about absorption of radiation is correct? A Infrared radiation can result in the breakdown of the ozone layer. B Ultraviolet radiation can cause
- November 2021, AS Paper 1, Q19 (1 mark): Which statement about absorption of radiation is correct? A Absorption of IR radiation can break covalent bonds, forming radicals. B Absorption of IR radiation
- June 2019, AS Paper 1, Q19 (1 mark): Which statement about infrared radiation is not correct? A The energy from IR radiation causes some covalent bonds to vibrate more. B Absorption of IR radiation
- June 2017, Paper 3, Q1(b) (1 mark): Why are scientists concerned about the release of methane into the atmosphere? [1]
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