plumiEffect of ionic charge and radius: OCR A‑Level Chemistry A questions
OCR A-Level Chemistry A past-paper questions on 5.2.1.3 Effect of ionic charge and radius, 2016–2025, with mark schemes and examiner’s reports where available.
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Open the full PDFYour answerQ16(c)(iv)
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Open the full PDFQ16(e)(ii)
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Open the full PDFQ16(a)(iv)
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All 4 questions on Effect of ionic charge and radius, as a list
- June 2023, Paper 1, Q8 (1 mark): Which compound requires the most energy to convert one mole into its gaseous ions? A NaF B Na2O C MgF2 D MgO Your answer [1]
- November 2021, Paper 1, Q16(c)(iv) (4 marks): The enthalpy changes of solution of the magnesium halides show a trend from MgF2 to MgI2. Explain why it is difficult to predict whether the enthalpy change of
- June 2019, Paper 1, Q16(e)(ii) (2 marks): The lattice enthalpy of sodium oxide is more exothermic than that of potassium oxide. Explain why. [2]
- June 2018, Paper 1, Q16(a)(iv) (2 marks): Predict how the enthalpy changes of hydration of F– and Cl– would differ. Explain your answer. [2]
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