plumiBond enthalpy and reactivity: Edexcel International A Level Chemistry questions
Edexcel International A Level Chemistry past-paper questions on 6.2.2 Bond enthalpy and reactivity, 2019–2025, with mark schemes and examiner’s reports where available.
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Q19(c)(ii)
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All 7 questions on Bond enthalpy and reactivity, as a list
- January 2025, AS Unit 2, Q19(c)(ii) (2 marks): Compound Y also reacts with cold, dilute aqueous potassium hydroxide. I Y Explain how the rate of reaction will compare with that of compound X. (2)
- October 2024, AS Unit 2, Q17(b)(ii) (2 marks): Give two reasons why A reacts more quickly than B when warmed with silver nitrate dissolved in aqueous ethanol. (2)
- June 2024, AS Unit 2, Q16(b)(iii) (2 marks): Give two reasons why, under the conditions used in (b)(ii), the reaction between potassium hydroxide and 2‑iodo‑2‑methylpropane is faster than the reaction betw
- January 2024, AS Unit 2, Q15 (1 mark): Silver nitrate, in aqueous ethanol, is added separately to four halogenoalkanes. Which would form a silver halide precipitate in the shortest time? A 1-bromobut
- June 2022, AS Unit 2, Q17(b) (3 marks): Samples of 1-iodobutane and 2-chloro-2-methylpropane were hydrolysed using aqueous silver nitrate in ethanol. Explain whether or not it is possible to predict t
- January 2022, AS Unit 2, Q20(c) (3 marks): The reactions of ammonia and of hydroxide ions with halogenoalkanes are similar. Compare the rate of reaction of ammonia with 1‑chlorobutane and with 2‑bromo‑2‑
- October 2021, AS Unit 2, Q20(a)(ii) (2 marks): State which of these halogenoalkanes would hydrolyse the fastest. Justify your answer. (2)
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